c_src: regenerate with soft nullable handling
[nit.git] / c_src / parser_prod._sep.c
index 69af4aa..fed7b05 100644 (file)
@@ -3,7 +3,7 @@
 val_t parser_prod___PNode___parent(val_t  self) {
   struct trace_t trace = {NULL, NULL, 9, LOCATE_parser_prod___PNode___parent};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   tracehead = trace.prev;
@@ -12,7 +12,7 @@ val_t parser_prod___PNode___parent(val_t  self) {
 void parser_prod___PNode___parent__eq(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 9, LOCATE_parser_prod___PNode___parent__eq};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   ATTR_parser_prod___PNode____parent( self) /*PNode::_parent*/ =  param0;
@@ -21,14 +21,16 @@ void parser_prod___PNode___parent__eq(val_t  self, val_t  param0) {
 }
 void parser_prod___PNode___remove_child(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 12, LOCATE_parser_prod___PNode___remove_child};
-  val_t variable[4];
-  void **closurevariable = NULL;
+  val_t variable[3];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  CALL_parser_prod___PNode___replace_child(variable[3])(variable[3],  variable[1] /*child*/,  NIT_NULL /*null*/) /*PNode::replace_child*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___PNode___replace_child(variable[0])(variable[0],  variable[1] /*child*/,  NIT_NULL /*null*/) /*PNode::replace_child*/;
   return_label0: while(false);
   tracehead = trace.prev;
   return;
@@ -36,7 +38,7 @@ void parser_prod___PNode___remove_child(val_t  self, val_t  param0) {
 void parser_prod___PNode___replace_child(val_t  self, val_t  param0, val_t  param1) {
   struct trace_t trace = {NULL, NULL, 18, LOCATE_parser_prod___PNode___replace_child};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
@@ -47,20 +49,23 @@ void parser_prod___PNode___replace_child(val_t  self, val_t  param0, val_t  para
 }
 void parser_prod___PNode___replace_with(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 21, LOCATE_parser_prod___PNode___replace_with};
-  val_t variable[5];
-  void **closurevariable = NULL;
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_prod___PNode____parent(variable[3]) /*PNode::_parent*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_prod___PNode____parent(variable[0]) /*PNode::_parent*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_prod___PNode____parent(variable[3]) /*PNode::_parent*/;
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___replace_child(variable[3])(variable[3], variable[4],  variable[1] /*node*/) /*PNode::replace_child*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_prod___PNode____parent(variable[0]) /*PNode::_parent*/;
+    CALL_parser_prod___PNode___replace_child(variable[3])(variable[3], variable[0],  variable[1] /*node*/) /*PNode::replace_child*/;
   }
   return_label1: while(false);
   tracehead = trace.prev;
@@ -69,7 +74,7 @@ void parser_prod___PNode___replace_with(val_t  self, val_t  param0) {
 void parser_prod___PNode___visit_all(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 29, LOCATE_parser_prod___PNode___visit_all};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
@@ -81,7 +86,7 @@ void parser_prod___PNode___visit_all(val_t  self, val_t  param0) {
 void parser_prod___PNode___visit_all_reverse(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 33, LOCATE_parser_prod___PNode___visit_all_reverse};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
@@ -93,7 +98,7 @@ void parser_prod___PNode___visit_all_reverse(val_t  self, val_t  param0) {
 val_t parser_prod___PNode___locate(val_t  self) {
   struct trace_t trace = {NULL, NULL, 37, LOCATE_parser_prod___PNode___locate};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
@@ -105,7 +110,7 @@ val_t parser_prod___PNode___locate(val_t  self) {
 val_t parser_prod___PNode___line_number(val_t  self) {
   struct trace_t trace = {NULL, NULL, 40, LOCATE_parser_prod___PNode___line_number};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
@@ -116,31 +121,55 @@ val_t parser_prod___PNode___line_number(val_t  self) {
 }
 void parser_prod___PNode___printl(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 43, LOCATE_parser_prod___PNode___printl};
-  val_t variable[14];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[4] = NEW_Array_array___Array___with_capacity(TAG_Int(5)); /*new Array[String]*/
-  variable[5] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-  variable[6] = variable[5];
-  CALL_abstract_collection___SimpleCollection___add(variable[4])(variable[4], variable[6]) /*AbstractArray::add*/;
-  variable[7] = variable[0];
-  variable[7] = CALL_parser_prod___PNode___locate(variable[7])(variable[7]) /*PNode::locate*/;
-  variable[8] = variable[7];
-  CALL_abstract_collection___SimpleCollection___add(variable[4])(variable[4], variable[8]) /*AbstractArray::add*/;
-  variable[9] = NEW_String_string___String___with_native(BOX_NativeString(": "), TAG_Int(2)); /*new String*/
-  variable[10] = variable[9];
-  CALL_abstract_collection___SimpleCollection___add(variable[4])(variable[4], variable[10]) /*AbstractArray::add*/;
-  variable[11] =  variable[1] /*str*/;
-  CALL_abstract_collection___SimpleCollection___add(variable[4])(variable[4], variable[11]) /*AbstractArray::add*/;
-  variable[12] = NEW_String_string___String___with_native(BOX_NativeString("\n"), TAG_Int(1)); /*new String*/
-  variable[13] = variable[12];
-  CALL_abstract_collection___SimpleCollection___add(variable[4])(variable[4], variable[13]) /*AbstractArray::add*/;
-  variable[4] = CALL_string___Object___to_s(variable[4])(variable[4]) /*Object::to_s*/;
-  CALL_file___Object___print(variable[3])(variable[3], variable[4]) /*Object::print*/;
+  static val_t once_value_3 = NIT_NULL; /* Once value for string variable[4]*/
+  static val_t once_value_4 = NIT_NULL; /* Once value for string variable[4]*/
+  static val_t once_value_5 = NIT_NULL; /* Once value for string variable[4]*/
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  variable[3] = NEW_Array_array___Array___with_capacity(TAG_Int(5)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+  /* Register variable[4]: Once String constant */
+  if (once_value_3 != NIT_NULL) variable[4] = once_value_3;
+  else {
+    variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+    once_value_3 = variable[4];
+  }
+  /* Register variable[4]: Result */
+  /* Ensure var variable[4]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_parser_prod___PNode___locate(variable[0])(variable[0]) /*PNode::locate*/;
+  /* Ensure var variable[4]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+  /* Register variable[4]: Once String constant */
+  if (once_value_4 != NIT_NULL) variable[4] = once_value_4;
+  else {
+    variable[4] = NEW_String_string___String___with_native(BOX_NativeString(": "), TAG_Int(2)) /*new String*/;
+    once_value_4 = variable[4];
+  }
+  /* Register variable[4]: Result */
+  /* Ensure var variable[4]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+  variable[4] =  variable[1] /*str*/ /* Ensure var: super-string element*/;
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+  /* Register variable[4]: Once String constant */
+  if (once_value_5 != NIT_NULL) variable[4] = once_value_5;
+  else {
+    variable[4] = NEW_String_string___String___with_native(BOX_NativeString("\n"), TAG_Int(1)) /*new String*/;
+    once_value_5 = variable[4];
+  }
+  /* Register variable[4]: Result */
+  /* Ensure var variable[4]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_string___Object___to_s(variable[3])(variable[3]) /*Object::to_s*/;
+  CALL_file___Object___print(variable[0])(variable[0], variable[3]) /*Object::print*/;
   return_label2: while(false);
   tracehead = trace.prev;
   return;
@@ -148,235 +177,391 @@ void parser_prod___PNode___printl(val_t  self, val_t  param0) {
 void parser_prod___Token___replace_child(val_t  self, val_t  param0, val_t  param1) {
   struct trace_t trace = {NULL, NULL, 53, LOCATE_parser_prod___Token___replace_child};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
-  return_label3: while(false);
+  /* Register variable[3]: Method return value and escape marker */
+  return_label6: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Token___visit_all(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 51, LOCATE_parser_prod___Token___visit_all};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label4: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label7: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Token___visit_all_reverse(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 52, LOCATE_parser_prod___Token___visit_all_reverse};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label5: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label8: while(false);
   tracehead = trace.prev;
   return;
 }
 val_t parser_prod___Token___locate(val_t  self) {
   struct trace_t trace = {NULL, NULL, 55, LOCATE_parser_prod___Token___locate};
-  val_t variable[17];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[2] = NEW_Array_array___Array___with_capacity(TAG_Int(7)); /*new Array[String]*/
-  variable[3] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-  variable[4] = variable[3];
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[4]) /*AbstractArray::add*/;
-  variable[5] = variable[0];
-  variable[5] = CALL_lexer___Token___filename(variable[5])(variable[5]) /*Token::filename*/;
-  variable[6] = variable[5];
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[6]) /*AbstractArray::add*/;
-  variable[7] = NEW_String_string___String___with_native(BOX_NativeString(":"), TAG_Int(1)); /*new String*/
-  variable[8] = variable[7];
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[8]) /*AbstractArray::add*/;
-  variable[9] = variable[0];
-  variable[9] = CALL_lexer___Token___line(variable[9])(variable[9]) /*Token::line*/;
-  variable[10] = variable[9];
-  variable[10] = CALL_string___Object___to_s(variable[10])(variable[10]) /*Object::to_s*/;
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[10]) /*AbstractArray::add*/;
-  variable[11] = NEW_String_string___String___with_native(BOX_NativeString(","), TAG_Int(1)); /*new String*/
-  variable[12] = variable[11];
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[12]) /*AbstractArray::add*/;
-  variable[13] = variable[0];
-  variable[13] = CALL_lexer___Token___pos(variable[13])(variable[13]) /*Token::pos*/;
-  variable[14] = variable[13];
-  variable[14] = CALL_string___Object___to_s(variable[14])(variable[14]) /*Object::to_s*/;
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[14]) /*AbstractArray::add*/;
-  variable[15] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-  variable[16] = variable[15];
-  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[16]) /*AbstractArray::add*/;
+  static val_t once_value_10 = NIT_NULL; /* Once value for string variable[3]*/
+  static val_t once_value_11 = NIT_NULL; /* Once value for string variable[3]*/
+  static val_t once_value_12 = NIT_NULL; /* Once value for string variable[3]*/
+  static val_t once_value_13 = NIT_NULL; /* Once value for string variable[3]*/
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Method return value and escape marker */
+  variable[2] = NEW_Array_array___Array___with_capacity(TAG_Int(7)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+  /* Register variable[3]: Once String constant */
+  if (once_value_10 != NIT_NULL) variable[3] = once_value_10;
+  else {
+    variable[3] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+    once_value_10 = variable[3];
+  }
+  /* Register variable[3]: Result */
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_lexer___Token___filename(variable[0])(variable[0]) /*Token::filename*/;
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+  /* Register variable[3]: Once String constant */
+  if (once_value_11 != NIT_NULL) variable[3] = once_value_11;
+  else {
+    variable[3] = NEW_String_string___String___with_native(BOX_NativeString(":"), TAG_Int(1)) /*new String*/;
+    once_value_11 = variable[3];
+  }
+  /* Register variable[3]: Result */
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_lexer___Token___line(variable[0])(variable[0]) /*Token::line*/;
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], CALL_string___Object___to_s(variable[3])(variable[3]) /*Object::to_s*/) /*AbstractArray::add*/;
+  /* Register variable[3]: Once String constant */
+  if (once_value_12 != NIT_NULL) variable[3] = once_value_12;
+  else {
+    variable[3] = NEW_String_string___String___with_native(BOX_NativeString(","), TAG_Int(1)) /*new String*/;
+    once_value_12 = variable[3];
+  }
+  /* Register variable[3]: Result */
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_lexer___Token___pos(variable[0])(variable[0]) /*Token::pos*/;
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], CALL_string___Object___to_s(variable[3])(variable[3]) /*Object::to_s*/) /*AbstractArray::add*/;
+  /* Register variable[3]: Once String constant */
+  if (once_value_13 != NIT_NULL) variable[3] = once_value_13;
+  else {
+    variable[3] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+    once_value_13 = variable[3];
+  }
+  /* Register variable[3]: Result */
+  /* Ensure var variable[3]: super-string element*/
+  CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+  /* Register variable[2]: Result */
   variable[2] = CALL_string___Object___to_s(variable[2])(variable[2]) /*Object::to_s*/;
   variable[1] = variable[2];
-  goto return_label6;
-  return_label6: while(false);
+  goto return_label9;
+  return_label9: while(false);
   tracehead = trace.prev;
   return variable[1];
 }
 val_t parser_prod___Token___line_number(val_t  self) {
   struct trace_t trace = {NULL, NULL, 60, LOCATE_parser_prod___Token___line_number};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = CALL_lexer___Token___line(variable[2])(variable[2]) /*Token::line*/;
+  /* Register variable[1]: Method return value and escape marker */
+  /* Register variable[2]: Result */
+  variable[2] = CALL_lexer___Token___line(variable[0])(variable[0]) /*Token::line*/;
   variable[1] = variable[2];
-  goto return_label7;
-  return_label7: while(false);
+  goto return_label14;
+  return_label14: while(false);
   tracehead = trace.prev;
   return variable[1];
 }
 void parser_prod___Prod___replace_with(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 83, LOCATE_parser_prod___Prod___replace_with};
+  struct trace_t trace = {NULL, NULL, 86, LOCATE_parser_prod___Prod___replace_with};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
   CALL_SUPER_parser_prod___Prod___replace_with(variable[0])(variable[0], variable[1]) /*super Prod::replace_with*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(( variable[1] /*n*/==NIT_NULL) || VAL_ISA( variable[1] /*n*/, COLOR_Prod, ID_Prod)) /*cast Prod*/;
-  if (!UNTAG_Bool(variable[3])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Prod___replace_with, LOCATE_parser_prod, 86); nit_exit(1);}
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_prod___Prod___first_token(variable[3])(variable[3]) /*Prod::first_token*/;
+  if (!UNTAG_Bool(variable[3])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Prod___replace_with, LOCATE_parser_prod, 89); nit_exit(1);}
+  /* Register variable[3]: Result */
+  variable[3] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
   CALL_parser_prod___Prod___first_token__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*Prod::first_token=*/;
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_prod___Prod___last_token(variable[3])(variable[3]) /*Prod::last_token*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
   CALL_parser_prod___Prod___last_token__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*Prod::last_token=*/;
-  return_label8: while(false);
+  return_label15: while(false);
   tracehead = trace.prev;
   return;
 }
 val_t parser_prod___Prod___locate(val_t  self) {
   struct trace_t trace = {NULL, NULL, 70, LOCATE_parser_prod___Prod___locate};
-  val_t variable[17];
-  void **closurevariable = NULL;
+    static val_t once_value_17 = NIT_NULL; /* Once value for string variable[2]*/
+    static val_t once_value_18 = NIT_NULL; /* Once value for string variable[3]*/
+    static val_t once_value_19 = NIT_NULL; /* Once value for string variable[3]*/
+    static val_t once_value_20 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_21 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_22 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_23 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_24 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_25 = NIT_NULL; /* Once value for string variable[4]*/
+    static val_t once_value_26 = NIT_NULL; /* Once value for string variable[4]*/
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = CALL_parser_prod___Prod___first_token(variable[2])(variable[2]) /*Prod::first_token*/;
+  /* Register variable[1]: Method return value and escape marker */
+  /* Register variable[2]: Result */
+  variable[2] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+  /* Register variable[2]: Result */
+  variable[2] = TAG_Bool((variable[2] ==  NIT_NULL /*null*/) || ((variable[2] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[2])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[2], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[2])(variable[2],  NIT_NULL /*null*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[2])) { /*if*/
+    /* Register variable[2]: Once String constant */
+    if (once_value_17 != NIT_NULL) variable[2] = once_value_17;
+    else {
+      variable[2] = NEW_String_string___String___with_native(BOX_NativeString("????"), TAG_Int(4)) /*new String*/;
+      once_value_17 = variable[2];
+    }
+    /* Register variable[2]: Result */
+    variable[1] = variable[2];
+    goto return_label16;
+  }
+  /* Register variable[2]: Result */
+  variable[2] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
+  /* Register variable[2]: Result */
   variable[2] = TAG_Bool((variable[2] ==  NIT_NULL /*null*/) || ((variable[2] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[2])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[2], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[2])(variable[2],  NIT_NULL /*null*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[2])) { /*if*/
-    variable[2] = NEW_String_string___String___with_native(BOX_NativeString("????"), TAG_Int(4)); /*new String*/
+    variable[2] = NEW_Array_array___Array___with_capacity(TAG_Int(3)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+    /* Register variable[3]: Once String constant */
+    if (once_value_18 != NIT_NULL) variable[3] = once_value_18;
+    else {
+      variable[3] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_18 = variable[3];
+    }
+    /* Register variable[3]: Result */
+    /* Ensure var variable[3]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_parser_prod___PNode___locate(variable[3])(variable[3]) /*Token::locate*/;
+    /* Ensure var variable[3]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+    /* Register variable[3]: Once String constant */
+    if (once_value_19 != NIT_NULL) variable[3] = once_value_19;
+    else {
+      variable[3] = NEW_String_string___String___with_native(BOX_NativeString("--????"), TAG_Int(6)) /*new String*/;
+      once_value_19 = variable[3];
+    }
+    /* Register variable[3]: Result */
+    /* Ensure var variable[3]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[2])(variable[2], variable[3]) /*AbstractArray::add*/;
+    /* Register variable[2]: Result */
+    variable[2] = CALL_string___Object___to_s(variable[2])(variable[2]) /*Object::to_s*/;
     variable[1] = variable[2];
-    goto return_label9;
+    goto return_label16;
   }
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_prod___Prod___last_token(variable[3])(variable[3]) /*Prod::last_token*/;
+  /* Register variable[2]: Local variable */
+  /* Register variable[3]: Result */
+  variable[3] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
+  /* Register variable[3]: Result */
   variable[3] = CALL_lexer___Token___pos(variable[3])(variable[3]) /*Token::pos*/;
-  variable[4] = variable[0];
-  variable[4] = CALL_parser_prod___Prod___last_token(variable[4])(variable[4]) /*Prod::last_token*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_lexer___Token___text(variable[4])(variable[4]) /*Token::text*/;
-  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*AbstractArray::length*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*AbstractArrayRead::length*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Int(UNTAG_Int(variable[3])+UNTAG_Int(variable[4]));
+  /* Register variable[3]: Result */
   variable[3] = TAG_Int(UNTAG_Int(variable[3])-UNTAG_Int( TAG_Int(1)));
   variable[2] = variable[3];
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_prod___Prod___first_token(variable[3])(variable[3]) /*Prod::first_token*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+  /* Register variable[3]: Result */
   variable[3] = CALL_lexer___Token___line(variable[3])(variable[3]) /*Token::line*/;
-  variable[4] = variable[0];
-  variable[4] = CALL_parser_prod___Prod___last_token(variable[4])(variable[4]) /*Prod::last_token*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_lexer___Token___line(variable[4])(variable[4]) /*Token::line*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool((variable[3])==(variable[4]));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = NEW_Array_array___Array___with_capacity(TAG_Int(5)); /*new Array[String]*/
-    variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-    variable[5] = variable[4];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[5]) /*AbstractArray::add*/;
-    variable[6] = variable[0];
-    variable[6] = CALL_parser_prod___Prod___first_token(variable[6])(variable[6]) /*Prod::first_token*/;
-    variable[6] = CALL_parser_prod___PNode___locate(variable[6])(variable[6]) /*Token::locate*/;
-    variable[7] = variable[6];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[7]) /*AbstractArray::add*/;
-    variable[8] = NEW_String_string___String___with_native(BOX_NativeString("--"), TAG_Int(2)); /*new String*/
-    variable[9] = variable[8];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[9]) /*AbstractArray::add*/;
-    variable[10] =  variable[2] /*lastpos*/;
-    variable[10] = CALL_string___Object___to_s(variable[10])(variable[10]) /*Object::to_s*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[10]) /*AbstractArray::add*/;
-    variable[11] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-    variable[12] = variable[11];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[12]) /*AbstractArray::add*/;
+    variable[3] = NEW_Array_array___Array___with_capacity(TAG_Int(5)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_20 != NIT_NULL) variable[4] = once_value_20;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_20 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_parser_prod___PNode___locate(variable[4])(variable[4]) /*Token::locate*/;
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_21 != NIT_NULL) variable[4] = once_value_21;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString("--"), TAG_Int(2)) /*new String*/;
+      once_value_21 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    variable[4] =  variable[2] /*lastpos*/ /* Ensure var: super-string element*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], CALL_string___Object___to_s(variable[4])(variable[4]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_22 != NIT_NULL) variable[4] = once_value_22;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_22 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[3]: Result */
     variable[3] = CALL_string___Object___to_s(variable[3])(variable[3]) /*Object::to_s*/;
     variable[1] = variable[3];
-    goto return_label9;
+    goto return_label16;
   } else { /*if*/
-    variable[3] = NEW_Array_array___Array___with_capacity(TAG_Int(7)); /*new Array[String]*/
-    variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-    variable[5] = variable[4];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[5]) /*AbstractArray::add*/;
-    variable[6] = variable[0];
-    variable[6] = CALL_parser_prod___Prod___first_token(variable[6])(variable[6]) /*Prod::first_token*/;
-    variable[6] = CALL_parser_prod___PNode___locate(variable[6])(variable[6]) /*Token::locate*/;
-    variable[7] = variable[6];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[7]) /*AbstractArray::add*/;
-    variable[8] = NEW_String_string___String___with_native(BOX_NativeString("--"), TAG_Int(2)); /*new String*/
-    variable[9] = variable[8];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[9]) /*AbstractArray::add*/;
-    variable[10] = variable[0];
-    variable[10] = CALL_parser_prod___Prod___last_token(variable[10])(variable[10]) /*Prod::last_token*/;
-    variable[10] = CALL_lexer___Token___line(variable[10])(variable[10]) /*Token::line*/;
-    variable[11] = variable[10];
-    variable[11] = CALL_string___Object___to_s(variable[11])(variable[11]) /*Object::to_s*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[11]) /*AbstractArray::add*/;
-    variable[12] = NEW_String_string___String___with_native(BOX_NativeString(":"), TAG_Int(1)); /*new String*/
-    variable[13] = variable[12];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[13]) /*AbstractArray::add*/;
-    variable[14] =  variable[2] /*lastpos*/;
-    variable[14] = CALL_string___Object___to_s(variable[14])(variable[14]) /*Object::to_s*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[14]) /*AbstractArray::add*/;
-    variable[15] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)); /*new String*/
-    variable[16] = variable[15];
-    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[16]) /*AbstractArray::add*/;
+    variable[3] = NEW_Array_array___Array___with_capacity(TAG_Int(7)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_23 != NIT_NULL) variable[4] = once_value_23;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_23 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_parser_prod___PNode___locate(variable[4])(variable[4]) /*Token::locate*/;
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_24 != NIT_NULL) variable[4] = once_value_24;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString("--"), TAG_Int(2)) /*new String*/;
+      once_value_24 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_parser_prod___Prod___last_token(variable[0])(variable[0]) /*Prod::last_token*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_lexer___Token___line(variable[4])(variable[4]) /*Token::line*/;
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], CALL_string___Object___to_s(variable[4])(variable[4]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_25 != NIT_NULL) variable[4] = once_value_25;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString(":"), TAG_Int(1)) /*new String*/;
+      once_value_25 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    variable[4] =  variable[2] /*lastpos*/ /* Ensure var: super-string element*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], CALL_string___Object___to_s(variable[4])(variable[4]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[4]: Once String constant */
+    if (once_value_26 != NIT_NULL) variable[4] = once_value_26;
+    else {
+      variable[4] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_26 = variable[4];
+    }
+    /* Register variable[4]: Result */
+    /* Ensure var variable[4]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3], variable[4]) /*AbstractArray::add*/;
+    /* Register variable[3]: Result */
     variable[3] = CALL_string___Object___to_s(variable[3])(variable[3]) /*Object::to_s*/;
     variable[1] = variable[3];
-    goto return_label9;
+    goto return_label16;
   }
-  return_label9: while(false);
+  return_label16: while(false);
   tracehead = trace.prev;
   return variable[1];
 }
 val_t parser_prod___Prod___line_number(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 91, LOCATE_parser_prod___Prod___line_number};
+  struct trace_t trace = {NULL, NULL, 94, LOCATE_parser_prod___Prod___line_number};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[2] = variable[0];
-  variable[2] = CALL_parser_prod___Prod___first_token(variable[2])(variable[2]) /*Prod::first_token*/;
+  /* Register variable[1]: Method return value and escape marker */
+  /* Register variable[2]: Result */
+  variable[2] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+  /* Register variable[2]: Result */
   variable[2] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[2] ==  NIT_NULL /*null*/) || ((variable[2] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[2])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[2], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[2])(variable[2],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[2])) { /*if*/
-    variable[2] = variable[0];
-    variable[2] = CALL_parser_prod___Prod___first_token(variable[2])(variable[2]) /*Prod::first_token*/;
+    /* Register variable[2]: Result */
+    variable[2] = CALL_parser_prod___Prod___first_token(variable[0])(variable[0]) /*Prod::first_token*/;
+    /* Register variable[2]: Result */
     variable[2] = CALL_lexer___Token___line(variable[2])(variable[2]) /*Token::line*/;
     variable[1] = variable[2];
-    goto return_label10;
+    goto return_label27;
   } else { /*if*/
     variable[1] =  TAG_Int(0);
-    goto return_label10;
+    goto return_label27;
   }
-  return_label10: while(false);
+  return_label27: while(false);
   tracehead = trace.prev;
   return variable[1];
 }
 val_t parser_prod___Prod___first_token(val_t  self) {
   struct trace_t trace = {NULL, NULL, 64, LOCATE_parser_prod___Prod___first_token};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   tracehead = trace.prev;
@@ -385,7 +570,7 @@ val_t parser_prod___Prod___first_token(val_t  self) {
 void parser_prod___Prod___first_token__eq(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 64, LOCATE_parser_prod___Prod___first_token__eq};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   ATTR_parser_prod___Prod____first_token( self) /*Prod::_first_token*/ =  param0;
@@ -395,7 +580,7 @@ void parser_prod___Prod___first_token__eq(val_t  self, val_t  param0) {
 val_t parser_prod___Prod___last_token(val_t  self) {
   struct trace_t trace = {NULL, NULL, 67, LOCATE_parser_prod___Prod___last_token};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   tracehead = trace.prev;
@@ -404,7 +589,7 @@ val_t parser_prod___Prod___last_token(val_t  self) {
 void parser_prod___Prod___last_token__eq(val_t  self, val_t  param0) {
   struct trace_t trace = {NULL, NULL, 67, LOCATE_parser_prod___Prod___last_token__eq};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   ATTR_parser_prod___Prod____last_token( self) /*Prod::_last_token*/ =  param0;
@@ -412,13 +597,13 @@ void parser_prod___Prod___last_token__eq(val_t  self, val_t  param0) {
   return;
 }
 void parser_prod___Visitor___visit(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 103, LOCATE_parser_prod___Visitor___visit};
+  struct trace_t trace = {NULL, NULL, 106, LOCATE_parser_prod___Visitor___visit};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   fprintf(stderr, "Deferred method called");
-  fprintf(stderr, " (%s:%d)\n", LOCATE_parser_prod, 103);
+  fprintf(stderr, " (%s:%d)\n", LOCATE_parser_prod, 106);
   nit_exit(1);
   tracehead = trace.prev;
   return;
@@ -426,26510 +611,30738 @@ void parser_prod___Visitor___visit(val_t  self, val_t  param0) {
 void parser_prod___Visitor___init(val_t  self, int* init_table) {
   struct trace_t trace = {NULL, NULL, 0, LOCATE_parser_prod___Visitor___init};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___n_packagedecl__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 110, LOCATE_parser_prod___AModule___n_packagedecl__eq};
+  struct trace_t trace = {NULL, NULL, 113, LOCATE_parser_prod___AModule___n_packagedecl__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AModule____n_packagedecl(variable[3]) /*AModule::_n_packagedecl*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label11: while(false);
+  return_label28: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 145, LOCATE_parser_prod___AModule___replace_child};
+  struct trace_t trace = {NULL, NULL, 148, LOCATE_parser_prod___AModule___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 147); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AModule____n_packagedecl(variable[4]) /*AModule::_n_packagedecl*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 150); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PPackagedecl, ID_PPackagedecl)) /*cast PPackagedecl*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 151); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AModule____n_packagedecl(variable[4]) /*AModule::_n_packagedecl*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 154); nit_exit(1);}
+      ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AModule____n_packagedecl(variable[4]) /*AModule::_n_packagedecl*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/ =  NIT_NULL /*null*/;
     }
-    goto return_label12;
+    goto return_label29;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[4]) /*AModule::_n_imports*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[7]) /*AModule::_n_imports*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PImport, ID_PImport)) /*cast PImport*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 161); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[7]) /*AModule::_n_imports*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 164); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[7]) /*AModule::_n_imports*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label12;
+      goto return_label29;
     }
-    continue_13: while(0);
+    continue_30: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_13: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[4]) /*AModule::_n_classdefs*/;
+  break_30: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[7]) /*AModule::_n_classdefs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClassdef, ID_PClassdef)) /*cast PClassdef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 173); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[7]) /*AModule::_n_classdefs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___replace_child, LOCATE_parser_prod, 176); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[7]) /*AModule::_n_classdefs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label12;
+      goto return_label29;
     }
-    continue_14: while(0);
+    continue_31: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_14: while(0);
-  return_label12: while(false);
+  break_31: while(0);
+  return_label29: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 184, LOCATE_parser_prod___AModule___visit_all};
+  struct trace_t trace = {NULL, NULL, 187, LOCATE_parser_prod___AModule___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[3]) /*AModule::_n_packagedecl*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[3]) /*AModule::_n_packagedecl*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AModule____n_imports(variable[3]) /*AModule::_n_imports*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_16: while(0);
+    continue_33: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_16: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AModule____n_classdefs(variable[3]) /*AModule::_n_classdefs*/;
+  break_33: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_17: while(0);
+    continue_34: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_17: while(0);
-  return_label15: while(false);
+  break_34: while(0);
+  return_label32: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 197, LOCATE_parser_prod___AModule___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 200, LOCATE_parser_prod___AModule___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[3]) /*AModule::_n_packagedecl*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[3]) /*AModule::_n_packagedecl*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[4]) /*AModule::_n_imports*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[4]) /*AModule::_n_imports*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_19: while(0);
+    continue_36: while(0);
   }
-  break_19: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[4]) /*AModule::_n_classdefs*/;
+  break_36: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[4]) /*AModule::_n_classdefs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_20: while(0);
+    continue_37: while(0);
   }
-  break_20: while(0);
-  return_label18: while(false);
+  break_37: while(0);
+  return_label35: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 118, LOCATE_parser_prod___AModule___empty_init};
+  struct trace_t trace = {NULL, NULL, 121, LOCATE_parser_prod___AModule___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AModule].i]) return;
-  return_label21: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label38: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AModule].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AModule___init_amodule(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 120, LOCATE_parser_prod___AModule___init_amodule};
+  struct trace_t trace = {NULL, NULL, 123, LOCATE_parser_prod___AModule___init_amodule};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AModule].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AModule___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AModule::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AModule____n_packagedecl(variable[5]) /*AModule::_n_packagedecl*/ =  variable[1] /*n_packagedecl*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AModule___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AModule::empty_init*/;
+  ATTR_parser_nodes___AModule____n_packagedecl(variable[0]) /*AModule::_n_packagedecl*/ =  variable[1] /*n_packagedecl*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_packagedecl*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_packagedecl*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_packagedecl*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_packagedecl*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_packagedecl*/)( variable[1] /*n_packagedecl*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_packagedecl*/)( variable[1] /*n_packagedecl*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_packagedecl*/)( variable[1] /*n_packagedecl*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PImport]*/
-  ATTR_parser_nodes___AModule____n_imports(variable[5]) /*AModule::_n_imports*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_imports*/)( variable[2] /*n_imports*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PImport]*/;
+  ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_imports*/)( variable[2] /*n_imports*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PImport, ID_PImport)) /*cast PImport*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___init_amodule, LOCATE_parser_prod, 133); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___AModule____n_imports(variable[8]) /*AModule::_n_imports*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___init_amodule, LOCATE_parser_prod, 136); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AModule____n_imports(variable[0]) /*AModule::_n_imports*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_23: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
-  }
-  break_23: while(0);
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PClassdef]*/
-  ATTR_parser_nodes___AModule____n_classdefs(variable[5]) /*AModule::_n_classdefs*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_classdefs*/)( variable[3] /*n_classdefs*/) /*AbstractArray::iterator*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_40: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
+  }
+  break_40: while(0);
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PClassdef]*/;
+  ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_classdefs*/)( variable[3] /*n_classdefs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PClassdef, ID_PClassdef)) /*cast PClassdef*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___init_amodule, LOCATE_parser_prod, 139); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___AModule____n_classdefs(variable[8]) /*AModule::_n_classdefs*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AModule___init_amodule, LOCATE_parser_prod, 142); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AModule____n_classdefs(variable[0]) /*AModule::_n_classdefs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_24: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_41: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_24: while(0);
-  return_label22: while(false);
+  break_41: while(0);
+  return_label39: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AModule].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 219, LOCATE_parser_prod___APackagedecl___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 222, LOCATE_parser_prod___APackagedecl___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_doc(variable[3]) /*APackagedecl::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label25: while(false);
+  return_label42: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___n_kwpackage__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 226, LOCATE_parser_prod___APackagedecl___n_kwpackage__eq};
+  struct trace_t trace = {NULL, NULL, 229, LOCATE_parser_prod___APackagedecl___n_kwpackage__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[3]) /*APackagedecl::_n_kwpackage*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label26: while(false);
+  return_label43: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 233, LOCATE_parser_prod___APackagedecl___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 236, LOCATE_parser_prod___APackagedecl___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_id(variable[3]) /*APackagedecl::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label27: while(false);
+  return_label44: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 264, LOCATE_parser_prod___APackagedecl___replace_child};
+  struct trace_t trace = {NULL, NULL, 267, LOCATE_parser_prod___APackagedecl___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 266); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APackagedecl____n_doc(variable[4]) /*APackagedecl::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 269); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 270); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_doc(variable[4]) /*APackagedecl::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 273); nit_exit(1);}
+      ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_doc(variable[4]) /*APackagedecl::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label28;
+    goto return_label45;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[4]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwpackage, ID_TKwpackage)) /*cast TKwpackage*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 280); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[4]) /*APackagedecl::_n_kwpackage*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 283); nit_exit(1);}
+      ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[4]) /*APackagedecl::_n_kwpackage*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/ =  NIT_NULL /*null*/;
     }
-    goto return_label28;
+    goto return_label45;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APackagedecl____n_id(variable[4]) /*APackagedecl::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 290); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_id(variable[4]) /*APackagedecl::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APackagedecl___replace_child, LOCATE_parser_prod, 293); nit_exit(1);}
+      ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APackagedecl____n_id(variable[4]) /*APackagedecl::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label28;
+    goto return_label45;
   }
-  return_label28: while(false);
+  return_label45: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 299, LOCATE_parser_prod___APackagedecl___visit_all};
+  struct trace_t trace = {NULL, NULL, 302, LOCATE_parser_prod___APackagedecl___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[3]) /*APackagedecl::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[3]) /*APackagedecl::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[3]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[3]) /*APackagedecl::_n_kwpackage*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[3]) /*APackagedecl::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[3]) /*APackagedecl::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label29: while(false);
+  return_label46: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 312, LOCATE_parser_prod___APackagedecl___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 315, LOCATE_parser_prod___APackagedecl___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[3]) /*APackagedecl::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[3]) /*APackagedecl::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[3]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[3]) /*APackagedecl::_n_kwpackage*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[3]) /*APackagedecl::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[3]) /*APackagedecl::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label30: while(false);
+  return_label47: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 241, LOCATE_parser_prod___APackagedecl___empty_init};
+  struct trace_t trace = {NULL, NULL, 244, LOCATE_parser_prod___APackagedecl___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APackagedecl].i]) return;
-  return_label31: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label48: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APackagedecl].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APackagedecl___init_apackagedecl(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 243, LOCATE_parser_prod___APackagedecl___init_apackagedecl};
+  struct trace_t trace = {NULL, NULL, 246, LOCATE_parser_prod___APackagedecl___init_apackagedecl};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APackagedecl].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___APackagedecl___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*APackagedecl::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_doc(variable[5]) /*APackagedecl::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___APackagedecl___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APackagedecl::empty_init*/;
+  ATTR_parser_nodes___APackagedecl____n_doc(variable[0]) /*APackagedecl::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[5]) /*APackagedecl::_n_kwpackage*/ =  variable[2] /*n_kwpackage*/;
+  ATTR_parser_nodes___APackagedecl____n_kwpackage(variable[0]) /*APackagedecl::_n_kwpackage*/ =  variable[2] /*n_kwpackage*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwpackage*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwpackage*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwpackage*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwpackage*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwpackage*/)( variable[2] /*n_kwpackage*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwpackage*/)( variable[2] /*n_kwpackage*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwpackage*/)( variable[2] /*n_kwpackage*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___APackagedecl____n_id(variable[5]) /*APackagedecl::_n_id*/ =  variable[3] /*n_id*/;
+  ATTR_parser_nodes___APackagedecl____n_id(variable[0]) /*APackagedecl::_n_id*/ =  variable[3] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)( variable[3] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label32: while(false);
+  return_label49: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APackagedecl].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 326, LOCATE_parser_prod___AImport___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 329, LOCATE_parser_prod___AImport___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AImport____n_visibility(variable[3]) /*AImport::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label33: while(false);
+  return_label50: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___n_kwimport__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 333, LOCATE_parser_prod___AImport___n_kwimport__eq};
+  struct trace_t trace = {NULL, NULL, 336, LOCATE_parser_prod___AImport___n_kwimport__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AImport____n_kwimport(variable[3]) /*AImport::_n_kwimport*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label34: while(false);
+  return_label51: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 340, LOCATE_parser_prod___AImport___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 343, LOCATE_parser_prod___AImport___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AImport____n_id(variable[3]) /*AImport::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label35: while(false);
+  return_label52: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 371, LOCATE_parser_prod___AImport___replace_child};
+  struct trace_t trace = {NULL, NULL, 374, LOCATE_parser_prod___AImport___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 373); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AImport____n_visibility(variable[4]) /*AImport::_n_visibility*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 376); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 377); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_visibility(variable[4]) /*AImport::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 380); nit_exit(1);}
+      ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_visibility(variable[4]) /*AImport::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label36;
+    goto return_label53;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AImport____n_kwimport(variable[4]) /*AImport::_n_kwimport*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwimport, ID_TKwimport)) /*cast TKwimport*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 387); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_kwimport(variable[4]) /*AImport::_n_kwimport*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 390); nit_exit(1);}
+      ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_kwimport(variable[4]) /*AImport::_n_kwimport*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/ =  NIT_NULL /*null*/;
     }
-    goto return_label36;
+    goto return_label53;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AImport____n_id(variable[4]) /*AImport::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 397); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_id(variable[4]) /*AImport::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImport___replace_child, LOCATE_parser_prod, 400); nit_exit(1);}
+      ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AImport____n_id(variable[4]) /*AImport::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label36;
+    goto return_label53;
   }
-  return_label36: while(false);
+  return_label53: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 406, LOCATE_parser_prod___AImport___visit_all};
+  struct trace_t trace = {NULL, NULL, 409, LOCATE_parser_prod___AImport___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[3]) /*AImport::_n_visibility*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[3]) /*AImport::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[3]) /*AImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[3]) /*AImport::_n_kwimport*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_id(variable[3]) /*AImport::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_id(variable[3]) /*AImport::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label37: while(false);
+  return_label54: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 419, LOCATE_parser_prod___AImport___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 422, LOCATE_parser_prod___AImport___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[3]) /*AImport::_n_visibility*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[3]) /*AImport::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[3]) /*AImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[3]) /*AImport::_n_kwimport*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AImport____n_id(variable[3]) /*AImport::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AImport____n_id(variable[3]) /*AImport::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label38: while(false);
+  return_label55: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 348, LOCATE_parser_prod___AImport___empty_init};
+  struct trace_t trace = {NULL, NULL, 351, LOCATE_parser_prod___AImport___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImport].i]) return;
-  return_label39: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label56: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImport].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImport___init_aimport(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 350, LOCATE_parser_prod___AImport___init_aimport};
+  struct trace_t trace = {NULL, NULL, 353, LOCATE_parser_prod___AImport___init_aimport};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImport].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AImport___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AImport::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AImport____n_visibility(variable[5]) /*AImport::_n_visibility*/ =  variable[1] /*n_visibility*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AImport___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AImport::empty_init*/;
+  ATTR_parser_nodes___AImport____n_visibility(variable[0]) /*AImport::_n_visibility*/ =  variable[1] /*n_visibility*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AImport____n_kwimport(variable[5]) /*AImport::_n_kwimport*/ =  variable[2] /*n_kwimport*/;
+  ATTR_parser_nodes___AImport____n_kwimport(variable[0]) /*AImport::_n_kwimport*/ =  variable[2] /*n_kwimport*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwimport*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwimport*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwimport*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwimport*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AImport____n_id(variable[5]) /*AImport::_n_id*/ =  variable[3] /*n_id*/;
+  ATTR_parser_nodes___AImport____n_id(variable[0]) /*AImport::_n_id*/ =  variable[3] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)( variable[3] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label40: while(false);
+  return_label57: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImport].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 433, LOCATE_parser_prod___ANoImport___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 436, LOCATE_parser_prod___ANoImport___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_visibility(variable[3]) /*ANoImport::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label41: while(false);
+  return_label58: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___n_kwimport__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 440, LOCATE_parser_prod___ANoImport___n_kwimport__eq};
+  struct trace_t trace = {NULL, NULL, 443, LOCATE_parser_prod___ANoImport___n_kwimport__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_kwimport(variable[3]) /*ANoImport::_n_kwimport*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label42: while(false);
+  return_label59: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___n_kwend__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 447, LOCATE_parser_prod___ANoImport___n_kwend__eq};
+  struct trace_t trace = {NULL, NULL, 450, LOCATE_parser_prod___ANoImport___n_kwend__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_kwend(variable[3]) /*ANoImport::_n_kwend*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label43: while(false);
+  return_label60: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 478, LOCATE_parser_prod___ANoImport___replace_child};
+  struct trace_t trace = {NULL, NULL, 481, LOCATE_parser_prod___ANoImport___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 480); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANoImport____n_visibility(variable[4]) /*ANoImport::_n_visibility*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 483); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 484); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_visibility(variable[4]) /*ANoImport::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 487); nit_exit(1);}
+      ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_visibility(variable[4]) /*ANoImport::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label44;
+    goto return_label61;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[4]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwimport, ID_TKwimport)) /*cast TKwimport*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 494); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_kwimport(variable[4]) /*ANoImport::_n_kwimport*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 497); nit_exit(1);}
+      ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_kwimport(variable[4]) /*ANoImport::_n_kwimport*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/ =  NIT_NULL /*null*/;
     }
-    goto return_label44;
+    goto return_label61;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANoImport____n_kwend(variable[4]) /*ANoImport::_n_kwend*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwend, ID_TKwend)) /*cast TKwend*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 504); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_kwend(variable[4]) /*ANoImport::_n_kwend*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANoImport___replace_child, LOCATE_parser_prod, 507); nit_exit(1);}
+      ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANoImport____n_kwend(variable[4]) /*ANoImport::_n_kwend*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/ =  NIT_NULL /*null*/;
     }
-    goto return_label44;
+    goto return_label61;
   }
-  return_label44: while(false);
+  return_label61: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 513, LOCATE_parser_prod___ANoImport___visit_all};
+  struct trace_t trace = {NULL, NULL, 516, LOCATE_parser_prod___ANoImport___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[3]) /*ANoImport::_n_visibility*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[3]) /*ANoImport::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[3]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[3]) /*ANoImport::_n_kwimport*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[3]) /*ANoImport::_n_kwend*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[3]) /*ANoImport::_n_kwend*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label45: while(false);
+  return_label62: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 526, LOCATE_parser_prod___ANoImport___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 529, LOCATE_parser_prod___ANoImport___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[3]) /*ANoImport::_n_visibility*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[3]) /*ANoImport::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[3]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[3]) /*ANoImport::_n_kwimport*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[3]) /*ANoImport::_n_kwend*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[3]) /*ANoImport::_n_kwend*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label46: while(false);
+  return_label63: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 455, LOCATE_parser_prod___ANoImport___empty_init};
+  struct trace_t trace = {NULL, NULL, 458, LOCATE_parser_prod___ANoImport___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANoImport].i]) return;
-  return_label47: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label64: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANoImport].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANoImport___init_anoimport(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 457, LOCATE_parser_prod___ANoImport___init_anoimport};
+  struct trace_t trace = {NULL, NULL, 460, LOCATE_parser_prod___ANoImport___init_anoimport};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANoImport].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___ANoImport___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*ANoImport::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_visibility(variable[5]) /*ANoImport::_n_visibility*/ =  variable[1] /*n_visibility*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___ANoImport___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANoImport::empty_init*/;
+  ATTR_parser_nodes___ANoImport____n_visibility(variable[0]) /*ANoImport::_n_visibility*/ =  variable[1] /*n_visibility*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_visibility*/)( variable[1] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_kwimport(variable[5]) /*ANoImport::_n_kwimport*/ =  variable[2] /*n_kwimport*/;
+  ATTR_parser_nodes___ANoImport____n_kwimport(variable[0]) /*ANoImport::_n_kwimport*/ =  variable[2] /*n_kwimport*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwimport*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwimport*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwimport*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwimport*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwimport*/)( variable[2] /*n_kwimport*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ANoImport____n_kwend(variable[5]) /*ANoImport::_n_kwend*/ =  variable[3] /*n_kwend*/;
+  ATTR_parser_nodes___ANoImport____n_kwend(variable[0]) /*ANoImport::_n_kwend*/ =  variable[3] /*n_kwend*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_kwend*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_kwend*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_kwend*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_kwend*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_kwend*/)( variable[3] /*n_kwend*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwend*/)( variable[3] /*n_kwend*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwend*/)( variable[3] /*n_kwend*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label48: while(false);
+  return_label65: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANoImport].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APublicVisibility___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 548, LOCATE_parser_prod___APublicVisibility___replace_child};
+  struct trace_t trace = {NULL, NULL, 551, LOCATE_parser_prod___APublicVisibility___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APublicVisibility___replace_child, LOCATE_parser_prod, 550); nit_exit(1);}
-  return_label49: while(false);
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APublicVisibility___replace_child, LOCATE_parser_prod, 553); nit_exit(1);}
+  return_label66: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APublicVisibility___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 553, LOCATE_parser_prod___APublicVisibility___visit_all};
+  struct trace_t trace = {NULL, NULL, 556, LOCATE_parser_prod___APublicVisibility___visit_all};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label50: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label67: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APublicVisibility___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 557, LOCATE_parser_prod___APublicVisibility___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 560, LOCATE_parser_prod___APublicVisibility___visit_all_reverse};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label51: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label68: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APublicVisibility___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 541, LOCATE_parser_prod___APublicVisibility___empty_init};
+  struct trace_t trace = {NULL, NULL, 544, LOCATE_parser_prod___APublicVisibility___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APublicVisibility].i]) return;
-  return_label52: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label69: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APublicVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APublicVisibility___init_apublicvisibility(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 543, LOCATE_parser_prod___APublicVisibility___init_apublicvisibility};
-  val_t variable[3];
-  void **closurevariable = NULL;
+  struct trace_t trace = {NULL, NULL, 546, LOCATE_parser_prod___APublicVisibility___init_apublicvisibility};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APublicVisibility].i]) return;
-  variable[2] = variable[0];
-  CALL_parser_prod___APublicVisibility___empty_init(variable[2])(variable[2], init_table /*YYY*/) /*APublicVisibility::empty_init*/;
-  return_label53: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  CALL_parser_prod___APublicVisibility___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APublicVisibility::empty_init*/;
+  return_label70: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APublicVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___n_kwprivate__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 562, LOCATE_parser_prod___APrivateVisibility___n_kwprivate__eq};
+  struct trace_t trace = {NULL, NULL, 565, LOCATE_parser_prod___APrivateVisibility___n_kwprivate__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label54: while(false);
+  return_label71: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 583, LOCATE_parser_prod___APrivateVisibility___replace_child};
+  struct trace_t trace = {NULL, NULL, 586, LOCATE_parser_prod___APrivateVisibility___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APrivateVisibility___replace_child, LOCATE_parser_prod, 585); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[4]) /*APrivateVisibility::_n_kwprivate*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APrivateVisibility___replace_child, LOCATE_parser_prod, 588); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwprivate, ID_TKwprivate)) /*cast TKwprivate*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APrivateVisibility___replace_child, LOCATE_parser_prod, 589); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[4]) /*APrivateVisibility::_n_kwprivate*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APrivateVisibility___replace_child, LOCATE_parser_prod, 592); nit_exit(1);}
+      ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[4]) /*APrivateVisibility::_n_kwprivate*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/ =  NIT_NULL /*null*/;
     }
-    goto return_label55;
+    goto return_label72;
   }
-  return_label55: while(false);
+  return_label72: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 598, LOCATE_parser_prod___APrivateVisibility___visit_all};
+  struct trace_t trace = {NULL, NULL, 601, LOCATE_parser_prod___APrivateVisibility___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label56: while(false);
+  return_label73: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 605, LOCATE_parser_prod___APrivateVisibility___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 608, LOCATE_parser_prod___APrivateVisibility___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label57: while(false);
+  return_label74: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 570, LOCATE_parser_prod___APrivateVisibility___empty_init};
+  struct trace_t trace = {NULL, NULL, 573, LOCATE_parser_prod___APrivateVisibility___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APrivateVisibility].i]) return;
-  return_label58: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label75: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APrivateVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APrivateVisibility___init_aprivatevisibility(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 572, LOCATE_parser_prod___APrivateVisibility___init_aprivatevisibility};
+  struct trace_t trace = {NULL, NULL, 575, LOCATE_parser_prod___APrivateVisibility___init_aprivatevisibility};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APrivateVisibility].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___APrivateVisibility___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*APrivateVisibility::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[3]) /*APrivateVisibility::_n_kwprivate*/ =  variable[1] /*n_kwprivate*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___APrivateVisibility___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APrivateVisibility::empty_init*/;
+  ATTR_parser_nodes___APrivateVisibility____n_kwprivate(variable[0]) /*APrivateVisibility::_n_kwprivate*/ =  variable[1] /*n_kwprivate*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwprivate*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwprivate*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwprivate*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwprivate*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwprivate*/)( variable[1] /*n_kwprivate*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwprivate*/)( variable[1] /*n_kwprivate*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwprivate*/)( variable[1] /*n_kwprivate*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label59: while(false);
+  return_label76: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APrivateVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___n_kwprotected__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 613, LOCATE_parser_prod___AProtectedVisibility___n_kwprotected__eq};
+  struct trace_t trace = {NULL, NULL, 616, LOCATE_parser_prod___AProtectedVisibility___n_kwprotected__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label60: while(false);
+  return_label77: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 634, LOCATE_parser_prod___AProtectedVisibility___replace_child};
+  struct trace_t trace = {NULL, NULL, 637, LOCATE_parser_prod___AProtectedVisibility___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AProtectedVisibility___replace_child, LOCATE_parser_prod, 636); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[4]) /*AProtectedVisibility::_n_kwprotected*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AProtectedVisibility___replace_child, LOCATE_parser_prod, 639); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwprotected, ID_TKwprotected)) /*cast TKwprotected*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AProtectedVisibility___replace_child, LOCATE_parser_prod, 640); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[4]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AProtectedVisibility___replace_child, LOCATE_parser_prod, 643); nit_exit(1);}
+      ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[4]) /*AProtectedVisibility::_n_kwprotected*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/ =  NIT_NULL /*null*/;
     }
-    goto return_label61;
+    goto return_label78;
   }
-  return_label61: while(false);
+  return_label78: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 649, LOCATE_parser_prod___AProtectedVisibility___visit_all};
+  struct trace_t trace = {NULL, NULL, 652, LOCATE_parser_prod___AProtectedVisibility___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label62: while(false);
+  return_label79: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 656, LOCATE_parser_prod___AProtectedVisibility___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 659, LOCATE_parser_prod___AProtectedVisibility___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label63: while(false);
+  return_label80: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 621, LOCATE_parser_prod___AProtectedVisibility___empty_init};
+  struct trace_t trace = {NULL, NULL, 624, LOCATE_parser_prod___AProtectedVisibility___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AProtectedVisibility].i]) return;
-  return_label64: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label81: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AProtectedVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AProtectedVisibility___init_aprotectedvisibility(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 623, LOCATE_parser_prod___AProtectedVisibility___init_aprotectedvisibility};
+  struct trace_t trace = {NULL, NULL, 626, LOCATE_parser_prod___AProtectedVisibility___init_aprotectedvisibility};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AProtectedVisibility].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AProtectedVisibility___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AProtectedVisibility::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[3]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[1] /*n_kwprotected*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AProtectedVisibility___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AProtectedVisibility::empty_init*/;
+  ATTR_parser_nodes___AProtectedVisibility____n_kwprotected(variable[0]) /*AProtectedVisibility::_n_kwprotected*/ =  variable[1] /*n_kwprotected*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwprotected*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwprotected*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwprotected*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwprotected*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwprotected*/)( variable[1] /*n_kwprotected*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwprotected*/)( variable[1] /*n_kwprotected*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwprotected*/)( variable[1] /*n_kwprotected*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label65: while(false);
+  return_label82: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AProtectedVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___n_kwintrude__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 664, LOCATE_parser_prod___AIntrudeVisibility___n_kwintrude__eq};
+  struct trace_t trace = {NULL, NULL, 667, LOCATE_parser_prod___AIntrudeVisibility___n_kwintrude__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label66: while(false);
+  return_label83: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 685, LOCATE_parser_prod___AIntrudeVisibility___replace_child};
+  struct trace_t trace = {NULL, NULL, 688, LOCATE_parser_prod___AIntrudeVisibility___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntrudeVisibility___replace_child, LOCATE_parser_prod, 687); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[4]) /*AIntrudeVisibility::_n_kwintrude*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntrudeVisibility___replace_child, LOCATE_parser_prod, 690); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwintrude, ID_TKwintrude)) /*cast TKwintrude*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntrudeVisibility___replace_child, LOCATE_parser_prod, 691); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[4]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntrudeVisibility___replace_child, LOCATE_parser_prod, 694); nit_exit(1);}
+      ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[4]) /*AIntrudeVisibility::_n_kwintrude*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/ =  NIT_NULL /*null*/;
     }
-    goto return_label67;
+    goto return_label84;
   }
-  return_label67: while(false);
+  return_label84: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 700, LOCATE_parser_prod___AIntrudeVisibility___visit_all};
+  struct trace_t trace = {NULL, NULL, 703, LOCATE_parser_prod___AIntrudeVisibility___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label68: while(false);
+  return_label85: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 707, LOCATE_parser_prod___AIntrudeVisibility___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 710, LOCATE_parser_prod___AIntrudeVisibility___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label69: while(false);
+  return_label86: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 672, LOCATE_parser_prod___AIntrudeVisibility___empty_init};
+  struct trace_t trace = {NULL, NULL, 675, LOCATE_parser_prod___AIntrudeVisibility___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntrudeVisibility].i]) return;
-  return_label70: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label87: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntrudeVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntrudeVisibility___init_aintrudevisibility(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 674, LOCATE_parser_prod___AIntrudeVisibility___init_aintrudevisibility};
+  struct trace_t trace = {NULL, NULL, 677, LOCATE_parser_prod___AIntrudeVisibility___init_aintrudevisibility};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntrudeVisibility].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AIntrudeVisibility___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AIntrudeVisibility::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[3]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[1] /*n_kwintrude*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AIntrudeVisibility___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIntrudeVisibility::empty_init*/;
+  ATTR_parser_nodes___AIntrudeVisibility____n_kwintrude(variable[0]) /*AIntrudeVisibility::_n_kwintrude*/ =  variable[1] /*n_kwintrude*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwintrude*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwintrude*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwintrude*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwintrude*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwintrude*/)( variable[1] /*n_kwintrude*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwintrude*/)( variable[1] /*n_kwintrude*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwintrude*/)( variable[1] /*n_kwintrude*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label71: while(false);
+  return_label88: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntrudeVisibility].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 715, LOCATE_parser_prod___AClassdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 718, LOCATE_parser_prod___AClassdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_doc(variable[3]) /*AClassdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label72: while(false);
+  return_label89: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 722, LOCATE_parser_prod___AClassdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 725, LOCATE_parser_prod___AClassdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_kwredef(variable[3]) /*AClassdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label73: while(false);
+  return_label90: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 729, LOCATE_parser_prod___AClassdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 732, LOCATE_parser_prod___AClassdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_visibility(variable[3]) /*AClassdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label74: while(false);
+  return_label91: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___n_classkind__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 736, LOCATE_parser_prod___AClassdef___n_classkind__eq};
+  struct trace_t trace = {NULL, NULL, 739, LOCATE_parser_prod___AClassdef___n_classkind__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_classkind(variable[3]) /*AClassdef::_n_classkind*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label75: while(false);
+  return_label92: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 743, LOCATE_parser_prod___AClassdef___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 746, LOCATE_parser_prod___AClassdef___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_id(variable[3]) /*AClassdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label76: while(false);
+  return_label93: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 805, LOCATE_parser_prod___AClassdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 808, LOCATE_parser_prod___AClassdef___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 807); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_doc(variable[4]) /*AClassdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 810); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 811); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_doc(variable[4]) /*AClassdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 814); nit_exit(1);}
+      ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_doc(variable[4]) /*AClassdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label77;
+    goto return_label94;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[4]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 821); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_kwredef(variable[4]) /*AClassdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 824); nit_exit(1);}
+      ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_kwredef(variable[4]) /*AClassdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label77;
+    goto return_label94;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_visibility(variable[4]) /*AClassdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 831); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_visibility(variable[4]) /*AClassdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 834); nit_exit(1);}
+      ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_visibility(variable[4]) /*AClassdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label77;
+    goto return_label94;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_classkind(variable[4]) /*AClassdef::_n_classkind*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClasskind, ID_PClasskind)) /*cast PClasskind*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 841); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_classkind(variable[4]) /*AClassdef::_n_classkind*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 844); nit_exit(1);}
+      ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_classkind(variable[4]) /*AClassdef::_n_classkind*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/ =  NIT_NULL /*null*/;
     }
-    goto return_label77;
+    goto return_label94;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_id(variable[4]) /*AClassdef::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TClassid, ID_TClassid)) /*cast TClassid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 851); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_id(variable[4]) /*AClassdef::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 854); nit_exit(1);}
+      ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClassdef____n_id(variable[4]) /*AClassdef::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label77;
+    goto return_label94;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[4]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[7]) /*AClassdef::_n_formaldefs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PFormaldef, ID_PFormaldef)) /*cast PFormaldef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 861); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[7]) /*AClassdef::_n_formaldefs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 864); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[7]) /*AClassdef::_n_formaldefs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label77;
+      goto return_label94;
     }
-    continue_78: while(0);
+    continue_95: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_78: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[4]) /*AClassdef::_n_superclasses*/;
+  break_95: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[7]) /*AClassdef::_n_superclasses*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSuperclass, ID_PSuperclass)) /*cast PSuperclass*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 873); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[7]) /*AClassdef::_n_superclasses*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 876); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[7]) /*AClassdef::_n_superclasses*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label77;
+      goto return_label94;
     }
-    continue_79: while(0);
+    continue_96: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_79: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[4]) /*AClassdef::_n_propdefs*/;
+  break_96: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[7]) /*AClassdef::_n_propdefs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 885); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[7]) /*AClassdef::_n_propdefs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___replace_child, LOCATE_parser_prod, 888); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[7]) /*AClassdef::_n_propdefs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label77;
+      goto return_label94;
     }
-    continue_80: while(0);
+    continue_97: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_80: while(0);
-  return_label77: while(false);
+  break_97: while(0);
+  return_label94: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 896, LOCATE_parser_prod___AClassdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 899, LOCATE_parser_prod___AClassdef___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[3]) /*AClassdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[3]) /*AClassdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[3]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[3]) /*AClassdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[3]) /*AClassdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[3]) /*AClassdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[3]) /*AClassdef::_n_classkind*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[3]) /*AClassdef::_n_classkind*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[3]) /*AClassdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[3]) /*AClassdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[3]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_82: while(0);
+    continue_99: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_82: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[3]) /*AClassdef::_n_superclasses*/;
+  break_99: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_83: while(0);
+    continue_100: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_83: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[3]) /*AClassdef::_n_propdefs*/;
+  break_100: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_84: while(0);
+    continue_101: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_84: while(0);
-  return_label81: while(false);
+  break_101: while(0);
+  return_label98: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 924, LOCATE_parser_prod___AClassdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 927, LOCATE_parser_prod___AClassdef___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[3]) /*AClassdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[3]) /*AClassdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[3]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[3]) /*AClassdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[3]) /*AClassdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[3]) /*AClassdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[3]) /*AClassdef::_n_classkind*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[3]) /*AClassdef::_n_classkind*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[3]) /*AClassdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[3]) /*AClassdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[4]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[4]) /*AClassdef::_n_formaldefs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_86: while(0);
+    continue_103: while(0);
   }
-  break_86: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[4]) /*AClassdef::_n_superclasses*/;
+  break_103: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[4]) /*AClassdef::_n_superclasses*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_87: while(0);
+    continue_104: while(0);
   }
-  break_87: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[4]) /*AClassdef::_n_propdefs*/;
+  break_104: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[4]) /*AClassdef::_n_propdefs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_88: while(0);
+    continue_105: while(0);
   }
-  break_88: while(0);
-  return_label85: while(false);
+  break_105: while(0);
+  return_label102: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 751, LOCATE_parser_prod___AClassdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 754, LOCATE_parser_prod___AClassdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClassdef].i]) return;
-  return_label89: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label106: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClassdef___init_aclassdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, val_t  param7, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 753, LOCATE_parser_prod___AClassdef___init_aclassdef};
+  struct trace_t trace = {NULL, NULL, 756, LOCATE_parser_prod___AClassdef___init_aclassdef};
   val_t variable[14];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
+  /* Register variable[7]: Local variable */
   variable[7] =  param6;
+  /* Register variable[8]: Local variable */
   variable[8] =  param7;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClassdef].i]) return;
-  variable[10] = variable[0];
-  CALL_parser_prod___AClassdef___empty_init(variable[10])(variable[10], init_table /*YYY*/) /*AClassdef::empty_init*/;
-  variable[10] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_doc(variable[10]) /*AClassdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[9]: Method return value and escape marker */
+  CALL_parser_prod___AClassdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AClassdef::empty_init*/;
+  ATTR_parser_nodes___AClassdef____n_doc(variable[0]) /*AClassdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[10]: Result */
   variable[10] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[10])) { /*if*/
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[10]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[10] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_kwredef(variable[10]) /*AClassdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AClassdef____n_kwredef(variable[0]) /*AClassdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[10]: Result */
   variable[10] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[10])) { /*if*/
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[10]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[10] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_visibility(variable[10]) /*AClassdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AClassdef____n_visibility(variable[0]) /*AClassdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[10]: Result */
   variable[10] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[10])) { /*if*/
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[10]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[10] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_classkind(variable[10]) /*AClassdef::_n_classkind*/ =  variable[4] /*n_classkind*/;
+  ATTR_parser_nodes___AClassdef____n_classkind(variable[0]) /*AClassdef::_n_classkind*/ =  variable[4] /*n_classkind*/;
+  /* Register variable[10]: Result */
   variable[10] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_classkind*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_classkind*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_classkind*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_classkind*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_classkind*/)( variable[4] /*n_classkind*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[10])) { /*if*/
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_classkind*/)( variable[4] /*n_classkind*/, variable[10]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_classkind*/)( variable[4] /*n_classkind*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[10] = variable[0];
-  ATTR_parser_nodes___AClassdef____n_id(variable[10]) /*AClassdef::_n_id*/ =  variable[5] /*n_id*/;
+  ATTR_parser_nodes___AClassdef____n_id(variable[0]) /*AClassdef::_n_id*/ =  variable[5] /*n_id*/;
+  /* Register variable[10]: Result */
   variable[10] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_id*/)( variable[5] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[10])) { /*if*/
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_id*/)( variable[5] /*n_id*/, variable[10]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_id*/)( variable[5] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[10] = variable[0];
-  variable[11] = NEW_List_list___List___init(); /*new List[PFormaldef]*/
-  ATTR_parser_nodes___AClassdef____n_formaldefs(variable[10]) /*AClassdef::_n_formaldefs*/ = variable[11];
-  variable[10] = CALL_abstract_collection___Collection___iterator( variable[6] /*n_formaldefs*/)( variable[6] /*n_formaldefs*/) /*AbstractArray::iterator*/;
+  /* Register variable[10]: Result */
+  variable[10] = NEW_List_list___List___init() /*new List[PFormaldef]*/;
+  ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/ = variable[10];
+  /* Register variable[10]: For iterator */
+  variable[10] = CALL_abstract_collection___Collection___iterator( variable[6] /*n_formaldefs*/)( variable[6] /*n_formaldefs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*ArrayIterator::is_ok*/;
+    /* Register variable[11]: For 'is_ok' result */
+    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[11])) break; /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*ArrayIterator::item*/;
+    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[12]: Local variable */
     variable[12] = variable[11];
+    /* Register variable[13]: Result */
     variable[13] = TAG_Bool(( variable[12] /*n*/==NIT_NULL) || VAL_ISA( variable[12] /*n*/, COLOR_PFormaldef, ID_PFormaldef)) /*cast PFormaldef*/;
-    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 787); nit_exit(1);}
-    variable[13] = variable[0];
-    variable[13] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[13]) /*AClassdef::_n_formaldefs*/;
+    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 790); nit_exit(1);}
+    /* Register variable[13]: Result */
+    variable[13] = ATTR_parser_nodes___AClassdef____n_formaldefs(variable[0]) /*AClassdef::_n_formaldefs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[13])(variable[13],  variable[12] /*n*/) /*IndexedCollection::add*/;
-    variable[13] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[13]) /*PNode::parent=*/;
-    continue_91: while(0);
-    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*ArrayIterator::next*/;
-  }
-  break_91: while(0);
-  variable[10] = variable[0];
-  variable[11] = NEW_List_list___List___init(); /*new List[PSuperclass]*/
-  ATTR_parser_nodes___AClassdef____n_superclasses(variable[10]) /*AClassdef::_n_superclasses*/ = variable[11];
-  variable[10] = CALL_abstract_collection___Collection___iterator( variable[7] /*n_superclasses*/)( variable[7] /*n_superclasses*/) /*AbstractArray::iterator*/;
+    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_108: while(0);
+    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*Iterator::next*/;
+  }
+  break_108: while(0);
+  /* Register variable[10]: Result */
+  variable[10] = NEW_List_list___List___init() /*new List[PSuperclass]*/;
+  ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/ = variable[10];
+  /* Register variable[10]: For iterator */
+  variable[10] = CALL_abstract_collection___Collection___iterator( variable[7] /*n_superclasses*/)( variable[7] /*n_superclasses*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*ArrayIterator::is_ok*/;
+    /* Register variable[11]: For 'is_ok' result */
+    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[11])) break; /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*ArrayIterator::item*/;
+    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[12]: Local variable */
     variable[12] = variable[11];
+    /* Register variable[13]: Result */
     variable[13] = TAG_Bool(( variable[12] /*n*/==NIT_NULL) || VAL_ISA( variable[12] /*n*/, COLOR_PSuperclass, ID_PSuperclass)) /*cast PSuperclass*/;
-    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 793); nit_exit(1);}
-    variable[13] = variable[0];
-    variable[13] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[13]) /*AClassdef::_n_superclasses*/;
+    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 796); nit_exit(1);}
+    /* Register variable[13]: Result */
+    variable[13] = ATTR_parser_nodes___AClassdef____n_superclasses(variable[0]) /*AClassdef::_n_superclasses*/;
     CALL_abstract_collection___SimpleCollection___add(variable[13])(variable[13],  variable[12] /*n*/) /*IndexedCollection::add*/;
-    variable[13] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[13]) /*PNode::parent=*/;
-    continue_92: while(0);
-    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*ArrayIterator::next*/;
-  }
-  break_92: while(0);
-  variable[10] = variable[0];
-  variable[11] = NEW_List_list___List___init(); /*new List[PPropdef]*/
-  ATTR_parser_nodes___AClassdef____n_propdefs(variable[10]) /*AClassdef::_n_propdefs*/ = variable[11];
-  variable[10] = CALL_abstract_collection___Collection___iterator( variable[8] /*n_propdefs*/)( variable[8] /*n_propdefs*/) /*AbstractArray::iterator*/;
+    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_109: while(0);
+    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*Iterator::next*/;
+  }
+  break_109: while(0);
+  /* Register variable[10]: Result */
+  variable[10] = NEW_List_list___List___init() /*new List[PPropdef]*/;
+  ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/ = variable[10];
+  /* Register variable[10]: For iterator */
+  variable[10] = CALL_abstract_collection___Collection___iterator( variable[8] /*n_propdefs*/)( variable[8] /*n_propdefs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*ArrayIterator::is_ok*/;
+    /* Register variable[11]: For 'is_ok' result */
+    variable[11] = CALL_abstract_collection___Iterator___is_ok(variable[10])(variable[10]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[11])) break; /*for*/
-    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*ArrayIterator::item*/;
+    variable[11] = CALL_abstract_collection___Iterator___item(variable[10])(variable[10]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[12]: Local variable */
     variable[12] = variable[11];
+    /* Register variable[13]: Result */
     variable[13] = TAG_Bool(( variable[12] /*n*/==NIT_NULL) || VAL_ISA( variable[12] /*n*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 799); nit_exit(1);}
-    variable[13] = variable[0];
-    variable[13] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[13]) /*AClassdef::_n_propdefs*/;
+    if (!UNTAG_Bool(variable[13])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClassdef___init_aclassdef, LOCATE_parser_prod, 802); nit_exit(1);}
+    /* Register variable[13]: Result */
+    variable[13] = ATTR_parser_nodes___AClassdef____n_propdefs(variable[0]) /*AClassdef::_n_propdefs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[13])(variable[13],  variable[12] /*n*/) /*IndexedCollection::add*/;
-    variable[13] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[13]) /*PNode::parent=*/;
-    continue_93: while(0);
-    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[12] /*n*/)( variable[12] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_110: while(0);
+    CALL_abstract_collection___Iterator___next(variable[10])(variable[10]) /*Iterator::next*/;
   }
-  break_93: while(0);
-  return_label90: while(false);
+  break_110: while(0);
+  return_label107: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATopClassdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 981, LOCATE_parser_prod___ATopClassdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 984, LOCATE_parser_prod___ATopClassdef___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___replace_child, LOCATE_parser_prod, 983); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[4]) /*ATopClassdef::_n_propdefs*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___replace_child, LOCATE_parser_prod, 986); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[7]) /*ATopClassdef::_n_propdefs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___replace_child, LOCATE_parser_prod, 987); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[7]) /*ATopClassdef::_n_propdefs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___replace_child, LOCATE_parser_prod, 990); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[7]) /*ATopClassdef::_n_propdefs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label94;
+      goto return_label111;
     }
-    continue_95: while(0);
+    continue_112: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_95: while(0);
-  return_label94: while(false);
+  break_112: while(0);
+  return_label111: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATopClassdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 998, LOCATE_parser_prod___ATopClassdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 1001, LOCATE_parser_prod___ATopClassdef___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[3]) /*ATopClassdef::_n_propdefs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_97: while(0);
+    continue_114: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_97: while(0);
-  return_label96: while(false);
+  break_114: while(0);
+  return_label113: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATopClassdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1005, LOCATE_parser_prod___ATopClassdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1008, LOCATE_parser_prod___ATopClassdef___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[4]) /*ATopClassdef::_n_propdefs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[4]) /*ATopClassdef::_n_propdefs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_99: while(0);
+    continue_116: while(0);
   }
-  break_99: while(0);
-  return_label98: while(false);
+  break_116: while(0);
+  return_label115: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATopClassdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 966, LOCATE_parser_prod___ATopClassdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 969, LOCATE_parser_prod___ATopClassdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATopClassdef].i]) return;
-  return_label100: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label117: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATopClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATopClassdef___init_atopclassdef(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 968, LOCATE_parser_prod___ATopClassdef___init_atopclassdef};
+  struct trace_t trace = {NULL, NULL, 971, LOCATE_parser_prod___ATopClassdef___init_atopclassdef};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATopClassdef].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ATopClassdef___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ATopClassdef::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[PPropdef]*/
-  ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[3]) /*ATopClassdef::_n_propdefs*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_propdefs*/)( variable[1] /*n_propdefs*/) /*AbstractArray::iterator*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ATopClassdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ATopClassdef::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[PPropdef]*/;
+  ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_propdefs*/)( variable[1] /*n_propdefs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
+    /* Register variable[6]: Result */
     variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___init_atopclassdef, LOCATE_parser_prod, 975); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[6]) /*ATopClassdef::_n_propdefs*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATopClassdef___init_atopclassdef, LOCATE_parser_prod, 978); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___ATopClassdef____n_propdefs(variable[0]) /*ATopClassdef::_n_propdefs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_102: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_119: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  break_102: while(0);
-  return_label101: while(false);
+  break_119: while(0);
+  return_label118: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATopClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainClassdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1033, LOCATE_parser_prod___AMainClassdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 1036, LOCATE_parser_prod___AMainClassdef___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___replace_child, LOCATE_parser_prod, 1035); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[4]) /*AMainClassdef::_n_propdefs*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___replace_child, LOCATE_parser_prod, 1038); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[7]) /*AMainClassdef::_n_propdefs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___replace_child, LOCATE_parser_prod, 1039); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[7]) /*AMainClassdef::_n_propdefs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___replace_child, LOCATE_parser_prod, 1042); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[7]) /*AMainClassdef::_n_propdefs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label103;
+      goto return_label120;
     }
-    continue_104: while(0);
+    continue_121: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_104: while(0);
-  return_label103: while(false);
+  break_121: while(0);
+  return_label120: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainClassdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1050, LOCATE_parser_prod___AMainClassdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 1053, LOCATE_parser_prod___AMainClassdef___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[3]) /*AMainClassdef::_n_propdefs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_106: while(0);
+    continue_123: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_106: while(0);
-  return_label105: while(false);
+  break_123: while(0);
+  return_label122: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainClassdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1057, LOCATE_parser_prod___AMainClassdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1060, LOCATE_parser_prod___AMainClassdef___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[4]) /*AMainClassdef::_n_propdefs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[4]) /*AMainClassdef::_n_propdefs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_108: while(0);
+    continue_125: while(0);
   }
-  break_108: while(0);
-  return_label107: while(false);
+  break_125: while(0);
+  return_label124: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainClassdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1018, LOCATE_parser_prod___AMainClassdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 1021, LOCATE_parser_prod___AMainClassdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainClassdef].i]) return;
-  return_label109: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label126: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainClassdef___init_amainclassdef(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1020, LOCATE_parser_prod___AMainClassdef___init_amainclassdef};
+  struct trace_t trace = {NULL, NULL, 1023, LOCATE_parser_prod___AMainClassdef___init_amainclassdef};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainClassdef].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AMainClassdef___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AMainClassdef::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[PPropdef]*/
-  ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[3]) /*AMainClassdef::_n_propdefs*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_propdefs*/)( variable[1] /*n_propdefs*/) /*AbstractArray::iterator*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AMainClassdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMainClassdef::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[PPropdef]*/;
+  ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_propdefs*/)( variable[1] /*n_propdefs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
+    /* Register variable[6]: Result */
     variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PPropdef, ID_PPropdef)) /*cast PPropdef*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___init_amainclassdef, LOCATE_parser_prod, 1027); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[6]) /*AMainClassdef::_n_propdefs*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainClassdef___init_amainclassdef, LOCATE_parser_prod, 1030); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___AMainClassdef____n_propdefs(variable[0]) /*AMainClassdef::_n_propdefs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_111: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_128: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  break_111: while(0);
-  return_label110: while(false);
+  break_128: while(0);
+  return_label127: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainClassdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___n_kwclass__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1069, LOCATE_parser_prod___AConcreteClasskind___n_kwclass__eq};
+  struct trace_t trace = {NULL, NULL, 1072, LOCATE_parser_prod___AConcreteClasskind___n_kwclass__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label112: while(false);
+  return_label129: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1090, LOCATE_parser_prod___AConcreteClasskind___replace_child};
+  struct trace_t trace = {NULL, NULL, 1093, LOCATE_parser_prod___AConcreteClasskind___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteClasskind___replace_child, LOCATE_parser_prod, 1092); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[4]) /*AConcreteClasskind::_n_kwclass*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteClasskind___replace_child, LOCATE_parser_prod, 1095); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwclass, ID_TKwclass)) /*cast TKwclass*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteClasskind___replace_child, LOCATE_parser_prod, 1096); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[4]) /*AConcreteClasskind::_n_kwclass*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteClasskind___replace_child, LOCATE_parser_prod, 1099); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[4]) /*AConcreteClasskind::_n_kwclass*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/ =  NIT_NULL /*null*/;
     }
-    goto return_label113;
+    goto return_label130;
   }
-  return_label113: while(false);
+  return_label130: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1105, LOCATE_parser_prod___AConcreteClasskind___visit_all};
+  struct trace_t trace = {NULL, NULL, 1108, LOCATE_parser_prod___AConcreteClasskind___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label114: while(false);
+  return_label131: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1112, LOCATE_parser_prod___AConcreteClasskind___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1115, LOCATE_parser_prod___AConcreteClasskind___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label115: while(false);
+  return_label132: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1077, LOCATE_parser_prod___AConcreteClasskind___empty_init};
+  struct trace_t trace = {NULL, NULL, 1080, LOCATE_parser_prod___AConcreteClasskind___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteClasskind].i]) return;
-  return_label116: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label133: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteClasskind___init_aconcreteclasskind(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1079, LOCATE_parser_prod___AConcreteClasskind___init_aconcreteclasskind};
+  struct trace_t trace = {NULL, NULL, 1082, LOCATE_parser_prod___AConcreteClasskind___init_aconcreteclasskind};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteClasskind].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AConcreteClasskind___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AConcreteClasskind::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[3]) /*AConcreteClasskind::_n_kwclass*/ =  variable[1] /*n_kwclass*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AConcreteClasskind___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AConcreteClasskind::empty_init*/;
+  ATTR_parser_nodes___AConcreteClasskind____n_kwclass(variable[0]) /*AConcreteClasskind::_n_kwclass*/ =  variable[1] /*n_kwclass*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwclass*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwclass*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwclass*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwclass*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwclass*/)( variable[1] /*n_kwclass*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwclass*/)( variable[1] /*n_kwclass*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwclass*/)( variable[1] /*n_kwclass*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label117: while(false);
+  return_label134: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___n_kwabstract__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1120, LOCATE_parser_prod___AAbstractClasskind___n_kwabstract__eq};
+  struct trace_t trace = {NULL, NULL, 1123, LOCATE_parser_prod___AAbstractClasskind___n_kwabstract__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[3]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label118: while(false);
+  return_label135: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___n_kwclass__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1127, LOCATE_parser_prod___AAbstractClasskind___n_kwclass__eq};
+  struct trace_t trace = {NULL, NULL, 1130, LOCATE_parser_prod___AAbstractClasskind___n_kwclass__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[3]) /*AAbstractClasskind::_n_kwclass*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label119: while(false);
+  return_label136: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1153, LOCATE_parser_prod___AAbstractClasskind___replace_child};
+  struct trace_t trace = {NULL, NULL, 1156, LOCATE_parser_prod___AAbstractClasskind___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1155); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[4]) /*AAbstractClasskind::_n_kwabstract*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1158); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwabstract, ID_TKwabstract)) /*cast TKwabstract*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1159); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[4]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1162); nit_exit(1);}
+      ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[4]) /*AAbstractClasskind::_n_kwabstract*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/ =  NIT_NULL /*null*/;
     }
-    goto return_label120;
+    goto return_label137;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[4]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwclass, ID_TKwclass)) /*cast TKwclass*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1169); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[4]) /*AAbstractClasskind::_n_kwclass*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbstractClasskind___replace_child, LOCATE_parser_prod, 1172); nit_exit(1);}
+      ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[4]) /*AAbstractClasskind::_n_kwclass*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/ =  NIT_NULL /*null*/;
     }
-    goto return_label120;
+    goto return_label137;
   }
-  return_label120: while(false);
+  return_label137: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1178, LOCATE_parser_prod___AAbstractClasskind___visit_all};
+  struct trace_t trace = {NULL, NULL, 1181, LOCATE_parser_prod___AAbstractClasskind___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[3]) /*AAbstractClasskind::_n_kwabstract*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[3]) /*AAbstractClasskind::_n_kwabstract*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[3]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[3]) /*AAbstractClasskind::_n_kwclass*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label121: while(false);
+  return_label138: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1188, LOCATE_parser_prod___AAbstractClasskind___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1191, LOCATE_parser_prod___AAbstractClasskind___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[3]) /*AAbstractClasskind::_n_kwabstract*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[3]) /*AAbstractClasskind::_n_kwabstract*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[3]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[3]) /*AAbstractClasskind::_n_kwclass*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label122: while(false);
+  return_label139: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1135, LOCATE_parser_prod___AAbstractClasskind___empty_init};
+  struct trace_t trace = {NULL, NULL, 1138, LOCATE_parser_prod___AAbstractClasskind___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbstractClasskind].i]) return;
-  return_label123: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label140: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbstractClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbstractClasskind___init_aabstractclasskind(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1137, LOCATE_parser_prod___AAbstractClasskind___init_aabstractclasskind};
+  struct trace_t trace = {NULL, NULL, 1140, LOCATE_parser_prod___AAbstractClasskind___init_aabstractclasskind};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbstractClasskind].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AAbstractClasskind___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AAbstractClasskind::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[4]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[1] /*n_kwabstract*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AAbstractClasskind___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAbstractClasskind::empty_init*/;
+  ATTR_parser_nodes___AAbstractClasskind____n_kwabstract(variable[0]) /*AAbstractClasskind::_n_kwabstract*/ =  variable[1] /*n_kwabstract*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwabstract*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwabstract*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwabstract*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwabstract*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwabstract*/)( variable[1] /*n_kwabstract*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwabstract*/)( variable[1] /*n_kwabstract*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwabstract*/)( variable[1] /*n_kwabstract*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[4]) /*AAbstractClasskind::_n_kwclass*/ =  variable[2] /*n_kwclass*/;
+  ATTR_parser_nodes___AAbstractClasskind____n_kwclass(variable[0]) /*AAbstractClasskind::_n_kwclass*/ =  variable[2] /*n_kwclass*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwclass*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwclass*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwclass*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwclass*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwclass*/)( variable[2] /*n_kwclass*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwclass*/)( variable[2] /*n_kwclass*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwclass*/)( variable[2] /*n_kwclass*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label124: while(false);
+  return_label141: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbstractClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___n_kwinterface__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1199, LOCATE_parser_prod___AInterfaceClasskind___n_kwinterface__eq};
+  struct trace_t trace = {NULL, NULL, 1202, LOCATE_parser_prod___AInterfaceClasskind___n_kwinterface__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label125: while(false);
+  return_label142: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1220, LOCATE_parser_prod___AInterfaceClasskind___replace_child};
+  struct trace_t trace = {NULL, NULL, 1223, LOCATE_parser_prod___AInterfaceClasskind___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInterfaceClasskind___replace_child, LOCATE_parser_prod, 1222); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[4]) /*AInterfaceClasskind::_n_kwinterface*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInterfaceClasskind___replace_child, LOCATE_parser_prod, 1225); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwinterface, ID_TKwinterface)) /*cast TKwinterface*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInterfaceClasskind___replace_child, LOCATE_parser_prod, 1226); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[4]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInterfaceClasskind___replace_child, LOCATE_parser_prod, 1229); nit_exit(1);}
+      ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[4]) /*AInterfaceClasskind::_n_kwinterface*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/ =  NIT_NULL /*null*/;
     }
-    goto return_label126;
+    goto return_label143;
   }
-  return_label126: while(false);
+  return_label143: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1235, LOCATE_parser_prod___AInterfaceClasskind___visit_all};
+  struct trace_t trace = {NULL, NULL, 1238, LOCATE_parser_prod___AInterfaceClasskind___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label127: while(false);
+  return_label144: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1242, LOCATE_parser_prod___AInterfaceClasskind___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1245, LOCATE_parser_prod___AInterfaceClasskind___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label128: while(false);
+  return_label145: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1207, LOCATE_parser_prod___AInterfaceClasskind___empty_init};
+  struct trace_t trace = {NULL, NULL, 1210, LOCATE_parser_prod___AInterfaceClasskind___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInterfaceClasskind].i]) return;
-  return_label129: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label146: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInterfaceClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInterfaceClasskind___init_ainterfaceclasskind(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1209, LOCATE_parser_prod___AInterfaceClasskind___init_ainterfaceclasskind};
+  struct trace_t trace = {NULL, NULL, 1212, LOCATE_parser_prod___AInterfaceClasskind___init_ainterfaceclasskind};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInterfaceClasskind].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AInterfaceClasskind___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AInterfaceClasskind::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[3]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[1] /*n_kwinterface*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AInterfaceClasskind___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AInterfaceClasskind::empty_init*/;
+  ATTR_parser_nodes___AInterfaceClasskind____n_kwinterface(variable[0]) /*AInterfaceClasskind::_n_kwinterface*/ =  variable[1] /*n_kwinterface*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwinterface*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwinterface*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwinterface*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwinterface*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwinterface*/)( variable[1] /*n_kwinterface*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwinterface*/)( variable[1] /*n_kwinterface*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwinterface*/)( variable[1] /*n_kwinterface*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label130: while(false);
+  return_label147: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInterfaceClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___n_kwuniversal__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1250, LOCATE_parser_prod___AUniversalClasskind___n_kwuniversal__eq};
+  struct trace_t trace = {NULL, NULL, 1253, LOCATE_parser_prod___AUniversalClasskind___n_kwuniversal__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label131: while(false);
+  return_label148: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1271, LOCATE_parser_prod___AUniversalClasskind___replace_child};
+  struct trace_t trace = {NULL, NULL, 1274, LOCATE_parser_prod___AUniversalClasskind___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUniversalClasskind___replace_child, LOCATE_parser_prod, 1273); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[4]) /*AUniversalClasskind::_n_kwuniversal*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUniversalClasskind___replace_child, LOCATE_parser_prod, 1276); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwuniversal, ID_TKwuniversal)) /*cast TKwuniversal*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUniversalClasskind___replace_child, LOCATE_parser_prod, 1277); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[4]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUniversalClasskind___replace_child, LOCATE_parser_prod, 1280); nit_exit(1);}
+      ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[4]) /*AUniversalClasskind::_n_kwuniversal*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/ =  NIT_NULL /*null*/;
     }
-    goto return_label132;
+    goto return_label149;
   }
-  return_label132: while(false);
+  return_label149: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1286, LOCATE_parser_prod___AUniversalClasskind___visit_all};
+  struct trace_t trace = {NULL, NULL, 1289, LOCATE_parser_prod___AUniversalClasskind___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label133: while(false);
+  return_label150: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1293, LOCATE_parser_prod___AUniversalClasskind___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1296, LOCATE_parser_prod___AUniversalClasskind___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label134: while(false);
+  return_label151: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1258, LOCATE_parser_prod___AUniversalClasskind___empty_init};
+  struct trace_t trace = {NULL, NULL, 1261, LOCATE_parser_prod___AUniversalClasskind___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUniversalClasskind].i]) return;
-  return_label135: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label152: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUniversalClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUniversalClasskind___init_auniversalclasskind(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1260, LOCATE_parser_prod___AUniversalClasskind___init_auniversalclasskind};
+  struct trace_t trace = {NULL, NULL, 1263, LOCATE_parser_prod___AUniversalClasskind___init_auniversalclasskind};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUniversalClasskind].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AUniversalClasskind___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AUniversalClasskind::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[3]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[1] /*n_kwuniversal*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AUniversalClasskind___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AUniversalClasskind::empty_init*/;
+  ATTR_parser_nodes___AUniversalClasskind____n_kwuniversal(variable[0]) /*AUniversalClasskind::_n_kwuniversal*/ =  variable[1] /*n_kwuniversal*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwuniversal*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwuniversal*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwuniversal*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwuniversal*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwuniversal*/)( variable[1] /*n_kwuniversal*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwuniversal*/)( variable[1] /*n_kwuniversal*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwuniversal*/)( variable[1] /*n_kwuniversal*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label136: while(false);
+  return_label153: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUniversalClasskind].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1301, LOCATE_parser_prod___AFormaldef___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 1304, LOCATE_parser_prod___AFormaldef___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFormaldef____n_id(variable[3]) /*AFormaldef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label137: while(false);
+  return_label154: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1308, LOCATE_parser_prod___AFormaldef___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 1311, LOCATE_parser_prod___AFormaldef___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFormaldef____n_type(variable[3]) /*AFormaldef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label138: while(false);
+  return_label155: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1334, LOCATE_parser_prod___AFormaldef___replace_child};
+  struct trace_t trace = {NULL, NULL, 1337, LOCATE_parser_prod___AFormaldef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1336); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AFormaldef____n_id(variable[4]) /*AFormaldef::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1339); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TClassid, ID_TClassid)) /*cast TClassid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1340); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFormaldef____n_id(variable[4]) /*AFormaldef::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1343); nit_exit(1);}
+      ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFormaldef____n_id(variable[4]) /*AFormaldef::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label139;
+    goto return_label156;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AFormaldef____n_type(variable[4]) /*AFormaldef::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1350); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFormaldef____n_type(variable[4]) /*AFormaldef::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFormaldef___replace_child, LOCATE_parser_prod, 1353); nit_exit(1);}
+      ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFormaldef____n_type(variable[4]) /*AFormaldef::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label139;
+    goto return_label156;
   }
-  return_label139: while(false);
+  return_label156: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1359, LOCATE_parser_prod___AFormaldef___visit_all};
+  struct trace_t trace = {NULL, NULL, 1362, LOCATE_parser_prod___AFormaldef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[3]) /*AFormaldef::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[3]) /*AFormaldef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[3]) /*AFormaldef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[3]) /*AFormaldef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label140: while(false);
+  return_label157: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1369, LOCATE_parser_prod___AFormaldef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1372, LOCATE_parser_prod___AFormaldef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[3]) /*AFormaldef::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[3]) /*AFormaldef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[3]) /*AFormaldef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[3]) /*AFormaldef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label141: while(false);
+  return_label158: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1316, LOCATE_parser_prod___AFormaldef___empty_init};
+  struct trace_t trace = {NULL, NULL, 1319, LOCATE_parser_prod___AFormaldef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFormaldef].i]) return;
-  return_label142: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label159: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFormaldef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFormaldef___init_aformaldef(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1318, LOCATE_parser_prod___AFormaldef___init_aformaldef};
+  struct trace_t trace = {NULL, NULL, 1321, LOCATE_parser_prod___AFormaldef___init_aformaldef};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFormaldef].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AFormaldef___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AFormaldef::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AFormaldef____n_id(variable[4]) /*AFormaldef::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AFormaldef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AFormaldef::empty_init*/;
+  ATTR_parser_nodes___AFormaldef____n_id(variable[0]) /*AFormaldef::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AFormaldef____n_type(variable[4]) /*AFormaldef::_n_type*/ =  variable[2] /*n_type*/;
+  ATTR_parser_nodes___AFormaldef____n_type(variable[0]) /*AFormaldef::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label143: while(false);
+  return_label160: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFormaldef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___n_kwspecial__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1380, LOCATE_parser_prod___ASuperclass___n_kwspecial__eq};
+  struct trace_t trace = {NULL, NULL, 1383, LOCATE_parser_prod___ASuperclass___n_kwspecial__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[3]) /*ASuperclass::_n_kwspecial*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label144: while(false);
+  return_label161: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1387, LOCATE_parser_prod___ASuperclass___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 1390, LOCATE_parser_prod___ASuperclass___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASuperclass____n_type(variable[3]) /*ASuperclass::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label145: while(false);
+  return_label162: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1413, LOCATE_parser_prod___ASuperclass___replace_child};
+  struct trace_t trace = {NULL, NULL, 1416, LOCATE_parser_prod___ASuperclass___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1415); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[4]) /*ASuperclass::_n_kwspecial*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1418); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwspecial, ID_TKwspecial)) /*cast TKwspecial*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1419); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[4]) /*ASuperclass::_n_kwspecial*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1422); nit_exit(1);}
+      ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[4]) /*ASuperclass::_n_kwspecial*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/ =  NIT_NULL /*null*/;
     }
-    goto return_label146;
+    goto return_label163;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperclass____n_type(variable[4]) /*ASuperclass::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1429); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperclass____n_type(variable[4]) /*ASuperclass::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperclass___replace_child, LOCATE_parser_prod, 1432); nit_exit(1);}
+      ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperclass____n_type(variable[4]) /*ASuperclass::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label146;
+    goto return_label163;
   }
-  return_label146: while(false);
+  return_label163: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1438, LOCATE_parser_prod___ASuperclass___visit_all};
+  struct trace_t trace = {NULL, NULL, 1441, LOCATE_parser_prod___ASuperclass___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[3]) /*ASuperclass::_n_kwspecial*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[3]) /*ASuperclass::_n_kwspecial*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[3]) /*ASuperclass::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[3]) /*ASuperclass::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label147: while(false);
+  return_label164: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1448, LOCATE_parser_prod___ASuperclass___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1451, LOCATE_parser_prod___ASuperclass___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[3]) /*ASuperclass::_n_kwspecial*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[3]) /*ASuperclass::_n_kwspecial*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[3]) /*ASuperclass::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[3]) /*ASuperclass::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label148: while(false);
+  return_label165: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1395, LOCATE_parser_prod___ASuperclass___empty_init};
+  struct trace_t trace = {NULL, NULL, 1398, LOCATE_parser_prod___ASuperclass___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperclass].i]) return;
-  return_label149: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label166: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperclass].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperclass___init_asuperclass(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1397, LOCATE_parser_prod___ASuperclass___init_asuperclass};
+  struct trace_t trace = {NULL, NULL, 1400, LOCATE_parser_prod___ASuperclass___init_asuperclass};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperclass].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ASuperclass___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ASuperclass::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[4]) /*ASuperclass::_n_kwspecial*/ =  variable[1] /*n_kwspecial*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ASuperclass___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASuperclass::empty_init*/;
+  ATTR_parser_nodes___ASuperclass____n_kwspecial(variable[0]) /*ASuperclass::_n_kwspecial*/ =  variable[1] /*n_kwspecial*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwspecial*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwspecial*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwspecial*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwspecial*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwspecial*/)( variable[1] /*n_kwspecial*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwspecial*/)( variable[1] /*n_kwspecial*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwspecial*/)( variable[1] /*n_kwspecial*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASuperclass____n_type(variable[4]) /*ASuperclass::_n_type*/ =  variable[2] /*n_type*/;
+  ATTR_parser_nodes___ASuperclass____n_type(variable[0]) /*ASuperclass::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label150: while(false);
+  return_label167: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperclass].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1459, LOCATE_parser_prod___AAttrPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 1462, LOCATE_parser_prod___AAttrPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label151: while(false);
+  return_label168: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1480, LOCATE_parser_prod___AAttrPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 1483, LOCATE_parser_prod___AAttrPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[3]) /*AAttrPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label152: while(false);
+  return_label169: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1487, LOCATE_parser_prod___AAttrPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 1490, LOCATE_parser_prod___AAttrPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[3]) /*AAttrPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label153: while(false);
+  return_label170: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_kwattr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1494, LOCATE_parser_prod___AAttrPropdef___n_kwattr__eq};
+  struct trace_t trace = {NULL, NULL, 1497, LOCATE_parser_prod___AAttrPropdef___n_kwattr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[3]) /*AAttrPropdef::_n_kwattr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label154: while(false);
+  return_label171: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAttrPropdef___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1501, LOCATE_parser_prod___AAttrPropdef___n_id__eq};
+void parser_prod___AAttrPropdef___n_kwvar__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 1504, LOCATE_parser_prod___AAttrPropdef___n_kwvar__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_id(variable[3]) /*AAttrPropdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label155: while(false);
+  return_label172: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAttrPropdef___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1508, LOCATE_parser_prod___AAttrPropdef___n_type__eq};
+void parser_prod___AAttrPropdef___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 1511, LOCATE_parser_prod___AAttrPropdef___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_type(variable[3]) /*AAttrPropdef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label156: while(false);
+  return_label173: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAttrPropdef___n_readable__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1466, LOCATE_parser_prod___AAttrPropdef___n_readable__eq};
+void parser_prod___AAttrPropdef___n_type__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 1518, LOCATE_parser_prod___AAttrPropdef___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_readable(variable[3]) /*AAttrPropdef::_n_readable*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label157: while(false);
+  return_label174: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAttrPropdef___n_readable__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 1469, LOCATE_parser_prod___AAttrPropdef___n_readable__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label175: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_writable__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1473, LOCATE_parser_prod___AAttrPropdef___n_writable__eq};
+  struct trace_t trace = {NULL, NULL, 1476, LOCATE_parser_prod___AAttrPropdef___n_writable__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_writable(variable[3]) /*AAttrPropdef::_n_writable*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label158: while(false);
+  return_label176: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1515, LOCATE_parser_prod___AAttrPropdef___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 1525, LOCATE_parser_prod___AAttrPropdef___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_expr(variable[3]) /*AAttrPropdef::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label159: while(false);
+  return_label177: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1576, LOCATE_parser_prod___AAttrPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 1591, LOCATE_parser_prod___AAttrPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1578); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1593); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1582); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1597); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[4]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAble, ID_PAble)) /*cast PAble*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1592); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_readable(variable[4]) /*AAttrPropdef::_n_readable*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1607); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_readable(variable[4]) /*AAttrPropdef::_n_readable*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[4]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAble, ID_PAble)) /*cast PAble*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1602); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_writable(variable[4]) /*AAttrPropdef::_n_writable*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1617); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_writable(variable[4]) /*AAttrPropdef::_n_writable*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[4]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1612); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[4]) /*AAttrPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1627); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[4]) /*AAttrPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[4]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1622); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[4]) /*AAttrPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1637); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[4]) /*AAttrPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[4]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwattr, ID_TKwattr)) /*cast TKwattr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1632); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[4]) /*AAttrPropdef::_n_kwattr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1647); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label178;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwvar, ID_TKwvar)) /*cast TKwvar*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1657); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[4]) /*AAttrPropdef::_n_kwattr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[4]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAttrid, ID_TAttrid)) /*cast TAttrid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1642); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_id(variable[4]) /*AAttrPropdef::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1667); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_id(variable[4]) /*AAttrPropdef::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[4]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1652); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_type(variable[4]) /*AAttrPropdef::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1677); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_type(variable[4]) /*AAttrPropdef::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[4]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1662); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_expr(variable[4]) /*AAttrPropdef::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrPropdef___replace_child, LOCATE_parser_prod, 1687); nit_exit(1);}
+      ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrPropdef____n_expr(variable[4]) /*AAttrPropdef::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label160;
+    goto return_label178;
   }
-  return_label160: while(false);
+  return_label178: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1671, LOCATE_parser_prod___AAttrPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 1696, LOCATE_parser_prod___AAttrPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[3]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[3]) /*AAttrPropdef::_n_readable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[3]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[3]) /*AAttrPropdef::_n_writable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[3]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[3]) /*AAttrPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[3]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[3]) /*AAttrPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[3]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[3]) /*AAttrPropdef::_n_kwattr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[3]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[3]) /*AAttrPropdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[3]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[3]) /*AAttrPropdef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[3]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[3]) /*AAttrPropdef::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label161: while(false);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label179: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1702, LOCATE_parser_prod___AAttrPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1730, LOCATE_parser_prod___AAttrPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[3]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[3]) /*AAttrPropdef::_n_readable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[3]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[3]) /*AAttrPropdef::_n_writable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[3]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[3]) /*AAttrPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[3]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[3]) /*AAttrPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[3]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[3]) /*AAttrPropdef::_n_kwattr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[3]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[3]) /*AAttrPropdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[3]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[3]) /*AAttrPropdef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[3]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[3]) /*AAttrPropdef::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label162: while(false);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label180: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1523, LOCATE_parser_prod___AAttrPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 1533, LOCATE_parser_prod___AAttrPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrPropdef].i]) return;
-  return_label163: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label181: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAttrPropdef___init_aattrpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, val_t  param7, val_t  param8, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1525, LOCATE_parser_prod___AAttrPropdef___init_aattrpropdef};
-  val_t variable[12];
-  void **closurevariable = NULL;
+void parser_prod___AAttrPropdef___init_aattrpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, val_t  param7, val_t  param8, val_t  param9, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 1535, LOCATE_parser_prod___AAttrPropdef___init_aattrpropdef};
+  val_t variable[13];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
+  /* Register variable[7]: Local variable */
   variable[7] =  param6;
+  /* Register variable[8]: Local variable */
   variable[8] =  param7;
+  /* Register variable[9]: Local variable */
   variable[9] =  param8;
+  /* Register variable[10]: Local variable */
+  variable[10] =  param9;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrPropdef].i]) return;
-  variable[11] = variable[0];
-  CALL_parser_prod___AAttrPropdef___empty_init(variable[11])(variable[11], init_table /*YYY*/) /*AAttrPropdef::empty_init*/;
-  variable[11] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[11]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_readable(variable[11]) /*AAttrPropdef::_n_readable*/ =  variable[2] /*n_readable*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_readable*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_readable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_readable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_readable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_readable*/)( variable[2] /*n_readable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_readable*/)( variable[2] /*n_readable*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_writable(variable[11]) /*AAttrPropdef::_n_writable*/ =  variable[3] /*n_writable*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_writable*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_writable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_writable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_writable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_writable*/)( variable[3] /*n_writable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_writable*/)( variable[3] /*n_writable*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[11]) /*AAttrPropdef::_n_kwredef*/ =  variable[4] /*n_kwredef*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwredef*/)( variable[4] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwredef*/)( variable[4] /*n_kwredef*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[11]) /*AAttrPropdef::_n_visibility*/ =  variable[5] /*n_visibility*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_visibility*/)( variable[5] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_visibility*/)( variable[5] /*n_visibility*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[11]) /*AAttrPropdef::_n_kwattr*/ =  variable[6] /*n_kwattr*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_kwattr*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_kwattr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_kwattr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_kwattr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_kwattr*/)( variable[6] /*n_kwattr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_kwattr*/)( variable[6] /*n_kwattr*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_id(variable[11]) /*AAttrPropdef::_n_id*/ =  variable[7] /*n_id*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[7] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*n_id*/)( variable[7] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_id*/)( variable[7] /*n_id*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_type(variable[11]) /*AAttrPropdef::_n_type*/ =  variable[8] /*n_type*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[8] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[8] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[8] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[8] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[8] /*n_type*/)( variable[8] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n_type*/)( variable[8] /*n_type*/, variable[11]) /*PNode::parent=*/;
-  }
-  variable[11] = variable[0];
-  ATTR_parser_nodes___AAttrPropdef____n_expr(variable[11]) /*AAttrPropdef::_n_expr*/ =  variable[9] /*n_expr*/;
-  variable[11] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[9] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[9] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[9] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[9] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[9] /*n_expr*/)( variable[9] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[11])) { /*if*/
-    variable[11] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[9] /*n_expr*/)( variable[9] /*n_expr*/, variable[11]) /*PNode::parent=*/;
+  /* Register variable[11]: Method return value and escape marker */
+  CALL_parser_prod___AAttrPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAttrPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_readable(variable[0]) /*AAttrPropdef::_n_readable*/ =  variable[2] /*n_readable*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_readable*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_readable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_readable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_readable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_readable*/)( variable[2] /*n_readable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_readable*/)( variable[2] /*n_readable*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_writable(variable[0]) /*AAttrPropdef::_n_writable*/ =  variable[3] /*n_writable*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_writable*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_writable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_writable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_writable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_writable*/)( variable[3] /*n_writable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_writable*/)( variable[3] /*n_writable*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_kwredef(variable[0]) /*AAttrPropdef::_n_kwredef*/ =  variable[4] /*n_kwredef*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwredef*/)( variable[4] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwredef*/)( variable[4] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_visibility(variable[0]) /*AAttrPropdef::_n_visibility*/ =  variable[5] /*n_visibility*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_visibility*/)( variable[5] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_visibility*/)( variable[5] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_kwattr(variable[0]) /*AAttrPropdef::_n_kwattr*/ =  variable[6] /*n_kwattr*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_kwattr*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_kwattr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_kwattr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_kwattr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_kwattr*/)( variable[6] /*n_kwattr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_kwattr*/)( variable[6] /*n_kwattr*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_kwvar(variable[0]) /*AAttrPropdef::_n_kwvar*/ =  variable[7] /*n_kwvar*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*n_kwvar*/ ==  NIT_NULL /*null*/) || (( variable[7] /*n_kwvar*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*n_kwvar*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*n_kwvar*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*n_kwvar*/)( variable[7] /*n_kwvar*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_kwvar*/)( variable[7] /*n_kwvar*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_id(variable[0]) /*AAttrPropdef::_n_id*/ =  variable[8] /*n_id*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[8] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[8] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[8] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[8] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[8] /*n_id*/)( variable[8] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n_id*/)( variable[8] /*n_id*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_type(variable[0]) /*AAttrPropdef::_n_type*/ =  variable[9] /*n_type*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[9] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[9] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[9] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[9] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[9] /*n_type*/)( variable[9] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[9] /*n_type*/)( variable[9] /*n_type*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAttrPropdef____n_expr(variable[0]) /*AAttrPropdef::_n_expr*/ =  variable[10] /*n_expr*/;
+  /* Register variable[12]: Result */
+  variable[12] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[10] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[10] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[10] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[10] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[10] /*n_expr*/)( variable[10] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[12])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[10] /*n_expr*/)( variable[10] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label164: while(false);
+  return_label182: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1734, LOCATE_parser_prod___AMethPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 1765, LOCATE_parser_prod___AMethPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label165: while(false);
+  return_label183: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1741, LOCATE_parser_prod___AMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 1772, LOCATE_parser_prod___AMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label166: while(false);
+  return_label184: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1748, LOCATE_parser_prod___AMethPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 1779, LOCATE_parser_prod___AMethPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label167: while(false);
+  return_label185: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1755, LOCATE_parser_prod___AMethPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 1786, LOCATE_parser_prod___AMethPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label168: while(false);
+  return_label186: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1762, LOCATE_parser_prod___AMethPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 1793, LOCATE_parser_prod___AMethPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label169: while(false);
+  return_label187: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1803, LOCATE_parser_prod___AMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 1834, LOCATE_parser_prod___AMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1805); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1836); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1809); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1840); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label170;
+    goto return_label188;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1819); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1850); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label170;
+    goto return_label188;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1829); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1860); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label170;
+    goto return_label188;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1839); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1870); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label170;
+    goto return_label188;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1849); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMethPropdef___replace_child, LOCATE_parser_prod, 1880); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label170;
+    goto return_label188;
   }
-  return_label170: while(false);
+  return_label188: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1858, LOCATE_parser_prod___AMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 1889, LOCATE_parser_prod___AMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label171: while(false);
+  return_label189: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1877, LOCATE_parser_prod___AMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 1908, LOCATE_parser_prod___AMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label172: while(false);
+  return_label190: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1770, LOCATE_parser_prod___AMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 1801, LOCATE_parser_prod___AMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMethPropdef].i]) return;
-  return_label173: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label191: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMethPropdef___init_amethpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1772, LOCATE_parser_prod___AMethPropdef___init_amethpropdef};
+  struct trace_t trace = {NULL, NULL, 1803, LOCATE_parser_prod___AMethPropdef___init_amethpropdef};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMethPropdef].i]) return;
-  variable[7] = variable[0];
-  CALL_parser_prod___AMethPropdef___empty_init(variable[7])(variable[7], init_table /*YYY*/) /*AMethPropdef::empty_init*/;
-  variable[7] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[7]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___AMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMethPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[7]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[7]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[7]) /*AMethPropdef::_n_methid*/ =  variable[4] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[4] /*n_methid*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_methid*/)( variable[4] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_methid*/)( variable[4] /*n_methid*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_methid*/)( variable[4] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[7]) /*AMethPropdef::_n_signature*/ =  variable[5] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[5] /*n_signature*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_signature*/)( variable[5] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_signature*/)( variable[5] /*n_signature*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_signature*/)( variable[5] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label174: while(false);
+  return_label192: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1897, LOCATE_parser_prod___ADeferredMethPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 1928, LOCATE_parser_prod___ADeferredMethPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label175: while(false);
+  return_label193: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1904, LOCATE_parser_prod___ADeferredMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 1935, LOCATE_parser_prod___ADeferredMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label176: while(false);
+  return_label194: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1911, LOCATE_parser_prod___ADeferredMethPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 1942, LOCATE_parser_prod___ADeferredMethPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label177: while(false);
+  return_label195: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1925, LOCATE_parser_prod___ADeferredMethPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 1956, LOCATE_parser_prod___ADeferredMethPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label178: while(false);
+  return_label196: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1932, LOCATE_parser_prod___ADeferredMethPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 1963, LOCATE_parser_prod___ADeferredMethPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label179: while(false);
+  return_label197: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___n_kwmeth__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 1918, LOCATE_parser_prod___ADeferredMethPropdef___n_kwmeth__eq};
+  struct trace_t trace = {NULL, NULL, 1949, LOCATE_parser_prod___ADeferredMethPropdef___n_kwmeth__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[3]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label180: while(false);
+  return_label198: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 1978, LOCATE_parser_prod___ADeferredMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 2009, LOCATE_parser_prod___ADeferredMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 1980); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2011); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 1984); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2015); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 1994); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2025); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2004); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2035); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[4]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwmeth, ID_TKwmeth)) /*cast TKwmeth*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2014); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[4]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2045); nit_exit(1);}
+      ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[4]) /*ADeferredMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2024); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2055); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2034); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADeferredMethPropdef___replace_child, LOCATE_parser_prod, 2065); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label181;
+    goto return_label199;
   }
-  return_label181: while(false);
+  return_label199: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2043, LOCATE_parser_prod___ADeferredMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 2074, LOCATE_parser_prod___ADeferredMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[3]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[3]) /*ADeferredMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label182: while(false);
+  return_label200: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2065, LOCATE_parser_prod___ADeferredMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 2096, LOCATE_parser_prod___ADeferredMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[3]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[3]) /*ADeferredMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label183: while(false);
+  return_label201: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1940, LOCATE_parser_prod___ADeferredMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 1971, LOCATE_parser_prod___ADeferredMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADeferredMethPropdef].i]) return;
-  return_label184: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label202: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADeferredMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADeferredMethPropdef___init_adeferredmethpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 1942, LOCATE_parser_prod___ADeferredMethPropdef___init_adeferredmethpropdef};
+  struct trace_t trace = {NULL, NULL, 1973, LOCATE_parser_prod___ADeferredMethPropdef___init_adeferredmethpropdef};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADeferredMethPropdef].i]) return;
-  variable[8] = variable[0];
-  CALL_parser_prod___ADeferredMethPropdef___empty_init(variable[8])(variable[8], init_table /*YYY*/) /*ADeferredMethPropdef::empty_init*/;
-  variable[8] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[8]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[7]: Method return value and escape marker */
+  CALL_parser_prod___ADeferredMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ADeferredMethPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[8]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[8]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[8]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  ATTR_parser_nodes___ADeferredMethPropdef____n_kwmeth(variable[0]) /*ADeferredMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwmeth*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwmeth*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwmeth*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[8]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[8]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label185: while(false);
+  return_label203: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADeferredMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2088, LOCATE_parser_prod___AInternMethPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 2119, LOCATE_parser_prod___AInternMethPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label186: while(false);
+  return_label204: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2095, LOCATE_parser_prod___AInternMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 2126, LOCATE_parser_prod___AInternMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label187: while(false);
+  return_label205: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2102, LOCATE_parser_prod___AInternMethPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 2133, LOCATE_parser_prod___AInternMethPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label188: while(false);
+  return_label206: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2116, LOCATE_parser_prod___AInternMethPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 2147, LOCATE_parser_prod___AInternMethPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label189: while(false);
+  return_label207: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2123, LOCATE_parser_prod___AInternMethPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 2154, LOCATE_parser_prod___AInternMethPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label190: while(false);
+  return_label208: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___n_kwmeth__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2109, LOCATE_parser_prod___AInternMethPropdef___n_kwmeth__eq};
+  struct trace_t trace = {NULL, NULL, 2140, LOCATE_parser_prod___AInternMethPropdef___n_kwmeth__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[3]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label191: while(false);
+  return_label209: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 2169, LOCATE_parser_prod___AInternMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 2200, LOCATE_parser_prod___AInternMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2171); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2202); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2175); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2206); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2185); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2216); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2195); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2226); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[4]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwmeth, ID_TKwmeth)) /*cast TKwmeth*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2205); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[4]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2236); nit_exit(1);}
+      ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[4]) /*AInternMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2215); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2246); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2225); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInternMethPropdef___replace_child, LOCATE_parser_prod, 2256); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label192;
+    goto return_label210;
   }
-  return_label192: while(false);
+  return_label210: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2234, LOCATE_parser_prod___AInternMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 2265, LOCATE_parser_prod___AInternMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[3]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[3]) /*AInternMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label193: while(false);
+  return_label211: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2256, LOCATE_parser_prod___AInternMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 2287, LOCATE_parser_prod___AInternMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[3]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[3]) /*AInternMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label194: while(false);
+  return_label212: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2131, LOCATE_parser_prod___AInternMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 2162, LOCATE_parser_prod___AInternMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInternMethPropdef].i]) return;
-  return_label195: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label213: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInternMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInternMethPropdef___init_ainternmethpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2133, LOCATE_parser_prod___AInternMethPropdef___init_ainternmethpropdef};
+  struct trace_t trace = {NULL, NULL, 2164, LOCATE_parser_prod___AInternMethPropdef___init_ainternmethpropdef};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInternMethPropdef].i]) return;
-  variable[8] = variable[0];
-  CALL_parser_prod___AInternMethPropdef___empty_init(variable[8])(variable[8], init_table /*YYY*/) /*AInternMethPropdef::empty_init*/;
-  variable[8] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[8]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[7]: Method return value and escape marker */
+  CALL_parser_prod___AInternMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AInternMethPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[8]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[8]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[8]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  ATTR_parser_nodes___AInternMethPropdef____n_kwmeth(variable[0]) /*AInternMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwmeth*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwmeth*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwmeth*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[8]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[8]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label196: while(false);
+  return_label214: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInternMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2279, LOCATE_parser_prod___AExternMethPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 2310, LOCATE_parser_prod___AExternMethPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label197: while(false);
+  return_label215: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2286, LOCATE_parser_prod___AExternMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 2317, LOCATE_parser_prod___AExternMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label198: while(false);
+  return_label216: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2293, LOCATE_parser_prod___AExternMethPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 2324, LOCATE_parser_prod___AExternMethPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label199: while(false);
+  return_label217: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2307, LOCATE_parser_prod___AExternMethPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 2338, LOCATE_parser_prod___AExternMethPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label200: while(false);
+  return_label218: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2314, LOCATE_parser_prod___AExternMethPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 2345, LOCATE_parser_prod___AExternMethPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label201: while(false);
+  return_label219: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_kwmeth__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2300, LOCATE_parser_prod___AExternMethPropdef___n_kwmeth__eq};
+  struct trace_t trace = {NULL, NULL, 2331, LOCATE_parser_prod___AExternMethPropdef___n_kwmeth__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[3]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label202: while(false);
+  return_label220: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___n_extern__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2321, LOCATE_parser_prod___AExternMethPropdef___n_extern__eq};
+  struct trace_t trace = {NULL, NULL, 2352, LOCATE_parser_prod___AExternMethPropdef___n_extern__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[3]) /*AExternMethPropdef::_n_extern*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label203: while(false);
+  return_label221: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 2372, LOCATE_parser_prod___AExternMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 2403, LOCATE_parser_prod___AExternMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2374); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2405); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2378); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2409); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2388); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2419); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2398); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2429); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[4]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwmeth, ID_TKwmeth)) /*cast TKwmeth*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2408); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[4]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2439); nit_exit(1);}
+      ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[4]) /*AExternMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2418); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2449); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2428); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2459); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[4]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TString, ID_TString)) /*cast TString*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2438); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[4]) /*AExternMethPropdef::_n_extern*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AExternMethPropdef___replace_child, LOCATE_parser_prod, 2469); nit_exit(1);}
+      ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[4]) /*AExternMethPropdef::_n_extern*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/ =  NIT_NULL /*null*/;
     }
-    goto return_label204;
+    goto return_label222;
   }
-  return_label204: while(false);
+  return_label222: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2447, LOCATE_parser_prod___AExternMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 2478, LOCATE_parser_prod___AExternMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[3]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[3]) /*AExternMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[3]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[3]) /*AExternMethPropdef::_n_extern*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label205: while(false);
+  return_label223: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2472, LOCATE_parser_prod___AExternMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 2503, LOCATE_parser_prod___AExternMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[3]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[3]) /*AExternMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[3]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[3]) /*AExternMethPropdef::_n_extern*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label206: while(false);
+  return_label224: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2329, LOCATE_parser_prod___AExternMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 2360, LOCATE_parser_prod___AExternMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AExternMethPropdef].i]) return;
-  return_label207: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label225: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AExternMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AExternMethPropdef___init_aexternmethpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2331, LOCATE_parser_prod___AExternMethPropdef___init_aexternmethpropdef};
+  struct trace_t trace = {NULL, NULL, 2362, LOCATE_parser_prod___AExternMethPropdef___init_aexternmethpropdef};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
+  /* Register variable[7]: Local variable */
   variable[7] =  param6;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AExternMethPropdef].i]) return;
-  variable[9] = variable[0];
-  CALL_parser_prod___AExternMethPropdef___empty_init(variable[9])(variable[9], init_table /*YYY*/) /*AExternMethPropdef::empty_init*/;
-  variable[9] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[9]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Method return value and escape marker */
+  CALL_parser_prod___AExternMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AExternMethPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[9]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[9]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[9]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  ATTR_parser_nodes___AExternMethPropdef____n_kwmeth(variable[0]) /*AExternMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwmeth*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwmeth*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwmeth*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[9]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[9]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[9]) /*AExternMethPropdef::_n_extern*/ =  variable[7] /*n_extern*/;
+  ATTR_parser_nodes___AExternMethPropdef____n_extern(variable[0]) /*AExternMethPropdef::_n_extern*/ =  variable[7] /*n_extern*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*n_extern*/ ==  NIT_NULL /*null*/) || (( variable[7] /*n_extern*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*n_extern*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*n_extern*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*n_extern*/)( variable[7] /*n_extern*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_extern*/)( variable[7] /*n_extern*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_extern*/)( variable[7] /*n_extern*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label208: while(false);
+  return_label226: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AExternMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2498, LOCATE_parser_prod___AConcreteMethPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 2529, LOCATE_parser_prod___AConcreteMethPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label209: while(false);
+  return_label227: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2505, LOCATE_parser_prod___AConcreteMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 2536, LOCATE_parser_prod___AConcreteMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label210: while(false);
+  return_label228: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2512, LOCATE_parser_prod___AConcreteMethPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 2543, LOCATE_parser_prod___AConcreteMethPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label211: while(false);
+  return_label229: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2526, LOCATE_parser_prod___AConcreteMethPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 2557, LOCATE_parser_prod___AConcreteMethPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label212: while(false);
+  return_label230: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2533, LOCATE_parser_prod___AConcreteMethPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 2564, LOCATE_parser_prod___AConcreteMethPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label213: while(false);
+  return_label231: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_kwmeth__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2519, LOCATE_parser_prod___AConcreteMethPropdef___n_kwmeth__eq};
+  struct trace_t trace = {NULL, NULL, 2550, LOCATE_parser_prod___AConcreteMethPropdef___n_kwmeth__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[3]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label214: while(false);
+  return_label232: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2540, LOCATE_parser_prod___AConcreteMethPropdef___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 2571, LOCATE_parser_prod___AConcreteMethPropdef___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label215: while(false);
+  return_label233: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 2591, LOCATE_parser_prod___AConcreteMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 2622, LOCATE_parser_prod___AConcreteMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2593); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2624); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2597); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2628); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2607); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2638); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2617); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2648); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[4]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwmeth, ID_TKwmeth)) /*cast TKwmeth*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2627); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[4]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2658); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[4]) /*AConcreteMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2637); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2668); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2647); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2678); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2657); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteMethPropdef___replace_child, LOCATE_parser_prod, 2688); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label216;
+    goto return_label234;
   }
-  return_label216: while(false);
+  return_label234: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2666, LOCATE_parser_prod___AConcreteMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 2697, LOCATE_parser_prod___AConcreteMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[3]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[3]) /*AConcreteMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label217: while(false);
+  return_label235: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2691, LOCATE_parser_prod___AConcreteMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 2722, LOCATE_parser_prod___AConcreteMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[3]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[3]) /*AConcreteMethPropdef::_n_kwmeth*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label218: while(false);
+  return_label236: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2548, LOCATE_parser_prod___AConcreteMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 2579, LOCATE_parser_prod___AConcreteMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteMethPropdef].i]) return;
-  return_label219: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label237: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteMethPropdef___init_aconcretemethpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2550, LOCATE_parser_prod___AConcreteMethPropdef___init_aconcretemethpropdef};
+  struct trace_t trace = {NULL, NULL, 2581, LOCATE_parser_prod___AConcreteMethPropdef___init_aconcretemethpropdef};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
+  /* Register variable[7]: Local variable */
   variable[7] =  param6;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteMethPropdef].i]) return;
-  variable[9] = variable[0];
-  CALL_parser_prod___AConcreteMethPropdef___empty_init(variable[9])(variable[9], init_table /*YYY*/) /*AConcreteMethPropdef::empty_init*/;
-  variable[9] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[9]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Method return value and escape marker */
+  CALL_parser_prod___AConcreteMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AConcreteMethPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[9]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[9]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[9]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  ATTR_parser_nodes___AConcreteMethPropdef____n_kwmeth(variable[0]) /*AConcreteMethPropdef::_n_kwmeth*/ =  variable[4] /*n_kwmeth*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwmeth*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwmeth*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwmeth*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwmeth*/)( variable[4] /*n_kwmeth*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[9]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[9]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[9]) /*AConcreteMethPropdef::_n_block*/ =  variable[7] /*n_block*/;
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[7] /*n_block*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[7] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*n_block*/)( variable[7] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_block*/)( variable[7] /*n_block*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_block*/)( variable[7] /*n_block*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label220: while(false);
+  return_label238: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2717, LOCATE_parser_prod___AConcreteInitPropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 2748, LOCATE_parser_prod___AConcreteInitPropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label221: while(false);
+  return_label239: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2724, LOCATE_parser_prod___AConcreteInitPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 2755, LOCATE_parser_prod___AConcreteInitPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label222: while(false);
+  return_label240: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2731, LOCATE_parser_prod___AConcreteInitPropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 2762, LOCATE_parser_prod___AConcreteInitPropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label223: while(false);
+  return_label241: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_methid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2745, LOCATE_parser_prod___AConcreteInitPropdef___n_methid__eq};
+  struct trace_t trace = {NULL, NULL, 2776, LOCATE_parser_prod___AConcreteInitPropdef___n_methid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label224: while(false);
+  return_label242: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2752, LOCATE_parser_prod___AConcreteInitPropdef___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 2783, LOCATE_parser_prod___AConcreteInitPropdef___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label225: while(false);
+  return_label243: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2759, LOCATE_parser_prod___AConcreteInitPropdef___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 2790, LOCATE_parser_prod___AConcreteInitPropdef___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label226: while(false);
+  return_label244: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___n_kwinit__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2738, LOCATE_parser_prod___AConcreteInitPropdef___n_kwinit__eq};
+  struct trace_t trace = {NULL, NULL, 2769, LOCATE_parser_prod___AConcreteInitPropdef___n_kwinit__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[3]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label227: while(false);
+  return_label245: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 2810, LOCATE_parser_prod___AConcreteInitPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 2841, LOCATE_parser_prod___AConcreteInitPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2812); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2843); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2816); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2847); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2826); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2857); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2836); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2867); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[4]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[4]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwinit, ID_TKwinit)) /*cast TKwinit*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2846); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[4]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2877); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[4]) /*AConcreteInitPropdef::_n_kwinit*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PMethid, ID_PMethid)) /*cast PMethid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2856); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2887); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_methid(variable[4]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2866); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2897); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_signature(variable[4]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2876); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AConcreteInitPropdef___replace_child, LOCATE_parser_prod, 2907); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label228;
+    goto return_label246;
   }
-  return_label228: while(false);
+  return_label246: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2885, LOCATE_parser_prod___AConcreteInitPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 2916, LOCATE_parser_prod___AConcreteInitPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[3]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[3]) /*AConcreteInitPropdef::_n_kwinit*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label229: while(false);
+  return_label247: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2910, LOCATE_parser_prod___AConcreteInitPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 2941, LOCATE_parser_prod___AConcreteInitPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[3]) /*AMethPropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[3]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[3]) /*AConcreteInitPropdef::_n_kwinit*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[3]) /*AMethPropdef::_n_methid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[3]) /*AMethPropdef::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label230: while(false);
+  return_label248: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2767, LOCATE_parser_prod___AConcreteInitPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 2798, LOCATE_parser_prod___AConcreteInitPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteInitPropdef].i]) return;
-  return_label231: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label249: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteInitPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AConcreteInitPropdef___init_aconcreteinitpropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, val_t  param6, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2769, LOCATE_parser_prod___AConcreteInitPropdef___init_aconcreteinitpropdef};
+  struct trace_t trace = {NULL, NULL, 2800, LOCATE_parser_prod___AConcreteInitPropdef___init_aconcreteinitpropdef};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
+  /* Register variable[7]: Local variable */
   variable[7] =  param6;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteInitPropdef].i]) return;
-  variable[9] = variable[0];
-  CALL_parser_prod___AConcreteInitPropdef___empty_init(variable[9])(variable[9], init_table /*YYY*/) /*AConcreteInitPropdef::empty_init*/;
-  variable[9] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[9]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Method return value and escape marker */
+  CALL_parser_prod___AConcreteInitPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AConcreteInitPropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[9]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[9]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___AMethPropdef____n_visibility(variable[0]) /*AMethPropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[9]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[4] /*n_kwinit*/;
+  ATTR_parser_nodes___AConcreteInitPropdef____n_kwinit(variable[0]) /*AConcreteInitPropdef::_n_kwinit*/ =  variable[4] /*n_kwinit*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwinit*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwinit*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwinit*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwinit*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwinit*/)( variable[4] /*n_kwinit*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwinit*/)( variable[4] /*n_kwinit*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwinit*/)( variable[4] /*n_kwinit*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_methid(variable[9]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  ATTR_parser_nodes___AMethPropdef____n_methid(variable[0]) /*AMethPropdef::_n_methid*/ =  variable[5] /*n_methid*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_methid*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_methid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_methid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_methid*/)( variable[5] /*n_methid*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_signature(variable[9]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  ATTR_parser_nodes___AMethPropdef____n_signature(variable[0]) /*AMethPropdef::_n_signature*/ =  variable[6] /*n_signature*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_signature*/)( variable[6] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[9] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[9]) /*AConcreteMethPropdef::_n_block*/ =  variable[7] /*n_block*/;
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[7] /*n_block*/;
+  /* Register variable[9]: Result */
   variable[9] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[7] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*n_block*/)( variable[7] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[9])) { /*if*/
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_block*/)( variable[7] /*n_block*/, variable[9]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n_block*/)( variable[7] /*n_block*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label232: while(false);
+  return_label250: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AConcreteInitPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2936, LOCATE_parser_prod___AMainMethPropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 2967, LOCATE_parser_prod___AMainMethPropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label233: while(false);
+  return_label251: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2943, LOCATE_parser_prod___AMainMethPropdef___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 2974, LOCATE_parser_prod___AMainMethPropdef___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label234: while(false);
+  return_label252: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 2969, LOCATE_parser_prod___AMainMethPropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 3000, LOCATE_parser_prod___AMainMethPropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 2971); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 3002); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 2975); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 3006); nit_exit(1);}
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label235;
+    goto return_label253;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 2985); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMainMethPropdef___replace_child, LOCATE_parser_prod, 3016); nit_exit(1);}
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label235;
+    goto return_label253;
   }
-  return_label235: while(false);
+  return_label253: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 2994, LOCATE_parser_prod___AMainMethPropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 3025, LOCATE_parser_prod___AMainMethPropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label236: while(false);
+  return_label254: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3004, LOCATE_parser_prod___AMainMethPropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3035, LOCATE_parser_prod___AMainMethPropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[3]) /*AMethPropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[3]) /*AConcreteMethPropdef::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label237: while(false);
+  return_label255: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2951, LOCATE_parser_prod___AMainMethPropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 2982, LOCATE_parser_prod___AMainMethPropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainMethPropdef].i]) return;
-  return_label238: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label256: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMainMethPropdef___init_amainmethpropdef(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 2953, LOCATE_parser_prod___AMainMethPropdef___init_amainmethpropdef};
+  struct trace_t trace = {NULL, NULL, 2984, LOCATE_parser_prod___AMainMethPropdef___init_amainmethpropdef};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainMethPropdef].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AMainMethPropdef___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AMainMethPropdef::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[4]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AMainMethPropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMainMethPropdef::empty_init*/;
+  ATTR_parser_nodes___AMethPropdef____n_kwredef(variable[0]) /*AMethPropdef::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[4]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*n_block*/;
+  ATTR_parser_nodes___AConcreteMethPropdef____n_block(variable[0]) /*AConcreteMethPropdef::_n_block*/ =  variable[2] /*n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_block*/)( variable[2] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_block*/)( variable[2] /*n_block*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_block*/)( variable[2] /*n_block*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label239: while(false);
+  return_label257: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMainMethPropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_doc__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3015, LOCATE_parser_prod___ATypePropdef___n_doc__eq};
+  struct trace_t trace = {NULL, NULL, 3046, LOCATE_parser_prod___ATypePropdef___n_doc__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label240: while(false);
+  return_label258: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3022, LOCATE_parser_prod___ATypePropdef___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 3053, LOCATE_parser_prod___ATypePropdef___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[3]) /*ATypePropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label241: while(false);
+  return_label259: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_visibility__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3029, LOCATE_parser_prod___ATypePropdef___n_visibility__eq};
+  struct trace_t trace = {NULL, NULL, 3060, LOCATE_parser_prod___ATypePropdef___n_visibility__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_visibility(variable[3]) /*ATypePropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label242: while(false);
+  return_label260: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_kwtype__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3036, LOCATE_parser_prod___ATypePropdef___n_kwtype__eq};
+  struct trace_t trace = {NULL, NULL, 3067, LOCATE_parser_prod___ATypePropdef___n_kwtype__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[3]) /*ATypePropdef::_n_kwtype*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label243: while(false);
+  return_label261: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3043, LOCATE_parser_prod___ATypePropdef___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 3074, LOCATE_parser_prod___ATypePropdef___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_id(variable[3]) /*ATypePropdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label244: while(false);
+  return_label262: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3050, LOCATE_parser_prod___ATypePropdef___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 3081, LOCATE_parser_prod___ATypePropdef___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_type(variable[3]) /*ATypePropdef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label245: while(false);
+  return_label263: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3096, LOCATE_parser_prod___ATypePropdef___replace_child};
+  struct trace_t trace = {NULL, NULL, 3127, LOCATE_parser_prod___ATypePropdef___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3098); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3129); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PDoc, ID_PDoc)) /*cast PDoc*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3102); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3133); nit_exit(1);}
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PPropdef____n_doc(variable[4]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[4]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3112); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[4]) /*ATypePropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3143); nit_exit(1);}
+      ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[4]) /*ATypePropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[4]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PVisibility, ID_PVisibility)) /*cast PVisibility*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3122); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_visibility(variable[4]) /*ATypePropdef::_n_visibility*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3153); nit_exit(1);}
+      ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_visibility(variable[4]) /*ATypePropdef::_n_visibility*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[4]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwtype, ID_TKwtype)) /*cast TKwtype*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3132); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[4]) /*ATypePropdef::_n_kwtype*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3163); nit_exit(1);}
+      ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[4]) /*ATypePropdef::_n_kwtype*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATypePropdef____n_id(variable[4]) /*ATypePropdef::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TClassid, ID_TClassid)) /*cast TClassid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3142); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_id(variable[4]) /*ATypePropdef::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3173); nit_exit(1);}
+      ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_id(variable[4]) /*ATypePropdef::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATypePropdef____n_type(variable[4]) /*ATypePropdef::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3152); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_type(variable[4]) /*ATypePropdef::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATypePropdef___replace_child, LOCATE_parser_prod, 3183); nit_exit(1);}
+      ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATypePropdef____n_type(variable[4]) /*ATypePropdef::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label246;
+    goto return_label264;
   }
-  return_label246: while(false);
+  return_label264: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3161, LOCATE_parser_prod___ATypePropdef___visit_all};
+  struct trace_t trace = {NULL, NULL, 3192, LOCATE_parser_prod___ATypePropdef___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[3]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[3]) /*ATypePropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[3]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[3]) /*ATypePropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[3]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[3]) /*ATypePropdef::_n_kwtype*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[3]) /*ATypePropdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[3]) /*ATypePropdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[3]) /*ATypePropdef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[3]) /*ATypePropdef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label247: while(false);
+  return_label265: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3183, LOCATE_parser_prod___ATypePropdef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3214, LOCATE_parser_prod___ATypePropdef___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[3]) /*PPropdef::_n_doc*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[3]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[3]) /*ATypePropdef::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[3]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[3]) /*ATypePropdef::_n_visibility*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[3]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[3]) /*ATypePropdef::_n_kwtype*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[3]) /*ATypePropdef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[3]) /*ATypePropdef::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[3]) /*ATypePropdef::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[3]) /*ATypePropdef::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label248: while(false);
+  return_label266: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3058, LOCATE_parser_prod___ATypePropdef___empty_init};
+  struct trace_t trace = {NULL, NULL, 3089, LOCATE_parser_prod___ATypePropdef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATypePropdef].i]) return;
-  return_label249: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label267: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATypePropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATypePropdef___init_atypepropdef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3060, LOCATE_parser_prod___ATypePropdef___init_atypepropdef};
+  struct trace_t trace = {NULL, NULL, 3091, LOCATE_parser_prod___ATypePropdef___init_atypepropdef};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATypePropdef].i]) return;
-  variable[8] = variable[0];
-  CALL_parser_prod___ATypePropdef___empty_init(variable[8])(variable[8], init_table /*YYY*/) /*ATypePropdef::empty_init*/;
-  variable[8] = variable[0];
-  ATTR_parser_nodes___PPropdef____n_doc(variable[8]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[7]: Method return value and escape marker */
+  CALL_parser_prod___ATypePropdef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ATypePropdef::empty_init*/;
+  ATTR_parser_nodes___PPropdef____n_doc(variable[0]) /*PPropdef::_n_doc*/ =  variable[1] /*n_doc*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_doc*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_doc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_doc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_doc*/)( variable[1] /*n_doc*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[8]) /*ATypePropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  ATTR_parser_nodes___ATypePropdef____n_kwredef(variable[0]) /*ATypePropdef::_n_kwredef*/ =  variable[2] /*n_kwredef*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwredef*/)( variable[2] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_visibility(variable[8]) /*ATypePropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  ATTR_parser_nodes___ATypePropdef____n_visibility(variable[0]) /*ATypePropdef::_n_visibility*/ =  variable[3] /*n_visibility*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_visibility*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_visibility*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_visibility*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_visibility*/)( variable[3] /*n_visibility*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[8]) /*ATypePropdef::_n_kwtype*/ =  variable[4] /*n_kwtype*/;
+  ATTR_parser_nodes___ATypePropdef____n_kwtype(variable[0]) /*ATypePropdef::_n_kwtype*/ =  variable[4] /*n_kwtype*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwtype*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwtype*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwtype*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwtype*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwtype*/)( variable[4] /*n_kwtype*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwtype*/)( variable[4] /*n_kwtype*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwtype*/)( variable[4] /*n_kwtype*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_id(variable[8]) /*ATypePropdef::_n_id*/ =  variable[5] /*n_id*/;
+  ATTR_parser_nodes___ATypePropdef____n_id(variable[0]) /*ATypePropdef::_n_id*/ =  variable[5] /*n_id*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_id*/)( variable[5] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_id*/)( variable[5] /*n_id*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_id*/)( variable[5] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___ATypePropdef____n_type(variable[8]) /*ATypePropdef::_n_type*/ =  variable[6] /*n_type*/;
+  ATTR_parser_nodes___ATypePropdef____n_type(variable[0]) /*ATypePropdef::_n_type*/ =  variable[6] /*n_type*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_type*/)( variable[6] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_type*/)( variable[6] /*n_type*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_type*/)( variable[6] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label250: while(false);
+  return_label268: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATypePropdef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3206, LOCATE_parser_prod___AReadAble___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 3237, LOCATE_parser_prod___AReadAble___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label251: while(false);
+  return_label269: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___n_kwreadable__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3213, LOCATE_parser_prod___AReadAble___n_kwreadable__eq};
+  struct trace_t trace = {NULL, NULL, 3244, LOCATE_parser_prod___AReadAble___n_kwreadable__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReadAble____n_kwreadable(variable[3]) /*AReadAble::_n_kwreadable*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label252: while(false);
+  return_label270: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3239, LOCATE_parser_prod___AReadAble___replace_child};
+  struct trace_t trace = {NULL, NULL, 3270, LOCATE_parser_prod___AReadAble___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3241); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3272); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3245); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3276); nit_exit(1);}
+      ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label253;
+    goto return_label271;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[4]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwreadable, ID_TKwreadable)) /*cast TKwreadable*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3255); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReadAble____n_kwreadable(variable[4]) /*AReadAble::_n_kwreadable*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReadAble___replace_child, LOCATE_parser_prod, 3286); nit_exit(1);}
+      ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReadAble____n_kwreadable(variable[4]) /*AReadAble::_n_kwreadable*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/ =  NIT_NULL /*null*/;
     }
-    goto return_label253;
+    goto return_label271;
   }
-  return_label253: while(false);
+  return_label271: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3264, LOCATE_parser_prod___AReadAble___visit_all};
+  struct trace_t trace = {NULL, NULL, 3295, LOCATE_parser_prod___AReadAble___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[3]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[3]) /*AReadAble::_n_kwreadable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label254: while(false);
+  return_label272: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3274, LOCATE_parser_prod___AReadAble___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3305, LOCATE_parser_prod___AReadAble___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[3]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[3]) /*AReadAble::_n_kwreadable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label255: while(false);
+  return_label273: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3221, LOCATE_parser_prod___AReadAble___empty_init};
+  struct trace_t trace = {NULL, NULL, 3252, LOCATE_parser_prod___AReadAble___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReadAble].i]) return;
-  return_label256: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label274: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReadAble].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReadAble___init_areadable(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3223, LOCATE_parser_prod___AReadAble___init_areadable};
+  struct trace_t trace = {NULL, NULL, 3254, LOCATE_parser_prod___AReadAble___init_areadable};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReadAble].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AReadAble___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AReadAble::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AReadAble___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AReadAble::empty_init*/;
+  ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AReadAble____n_kwreadable(variable[4]) /*AReadAble::_n_kwreadable*/ =  variable[2] /*n_kwreadable*/;
+  ATTR_parser_nodes___AReadAble____n_kwreadable(variable[0]) /*AReadAble::_n_kwreadable*/ =  variable[2] /*n_kwreadable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwreadable*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwreadable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwreadable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwreadable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwreadable*/)( variable[2] /*n_kwreadable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwreadable*/)( variable[2] /*n_kwreadable*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwreadable*/)( variable[2] /*n_kwreadable*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label257: while(false);
+  return_label275: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReadAble].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___n_kwredef__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3285, LOCATE_parser_prod___AWriteAble___n_kwredef__eq};
+  struct trace_t trace = {NULL, NULL, 3316, LOCATE_parser_prod___AWriteAble___n_kwredef__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label258: while(false);
+  return_label276: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___n_kwwritable__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3292, LOCATE_parser_prod___AWriteAble___n_kwwritable__eq};
+  struct trace_t trace = {NULL, NULL, 3323, LOCATE_parser_prod___AWriteAble___n_kwwritable__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[3]) /*AWriteAble::_n_kwwritable*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label259: while(false);
+  return_label277: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3318, LOCATE_parser_prod___AWriteAble___replace_child};
+  struct trace_t trace = {NULL, NULL, 3349, LOCATE_parser_prod___AWriteAble___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3320); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3351); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwredef, ID_TKwredef)) /*cast TKwredef*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3324); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3355); nit_exit(1);}
+      ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  NIT_NULL /*null*/;
     }
-    goto return_label260;
+    goto return_label278;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[4]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwwritable, ID_TKwwritable)) /*cast TKwwritable*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3334); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[4]) /*AWriteAble::_n_kwwritable*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWriteAble___replace_child, LOCATE_parser_prod, 3365); nit_exit(1);}
+      ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[4]) /*AWriteAble::_n_kwwritable*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/ =  NIT_NULL /*null*/;
     }
-    goto return_label260;
+    goto return_label278;
   }
-  return_label260: while(false);
+  return_label278: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3343, LOCATE_parser_prod___AWriteAble___visit_all};
+  struct trace_t trace = {NULL, NULL, 3374, LOCATE_parser_prod___AWriteAble___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[3]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[3]) /*AWriteAble::_n_kwwritable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label261: while(false);
+  return_label279: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3353, LOCATE_parser_prod___AWriteAble___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3384, LOCATE_parser_prod___AWriteAble___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[3]) /*PAble::_n_kwredef*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[3]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[3]) /*AWriteAble::_n_kwwritable*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label262: while(false);
+  return_label280: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3300, LOCATE_parser_prod___AWriteAble___empty_init};
+  struct trace_t trace = {NULL, NULL, 3331, LOCATE_parser_prod___AWriteAble___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWriteAble].i]) return;
-  return_label263: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label281: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWriteAble].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWriteAble___init_awriteable(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3302, LOCATE_parser_prod___AWriteAble___init_awriteable};
+  struct trace_t trace = {NULL, NULL, 3333, LOCATE_parser_prod___AWriteAble___init_awriteable};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWriteAble].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AWriteAble___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AWriteAble::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___PAble____n_kwredef(variable[4]) /*PAble::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AWriteAble___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AWriteAble::empty_init*/;
+  ATTR_parser_nodes___PAble____n_kwredef(variable[0]) /*PAble::_n_kwredef*/ =  variable[1] /*n_kwredef*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwredef*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwredef*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwredef*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwredef*/)( variable[1] /*n_kwredef*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[4]) /*AWriteAble::_n_kwwritable*/ =  variable[2] /*n_kwwritable*/;
+  ATTR_parser_nodes___AWriteAble____n_kwwritable(variable[0]) /*AWriteAble::_n_kwwritable*/ =  variable[2] /*n_kwwritable*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwwritable*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwwritable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwwritable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwwritable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwwritable*/)( variable[2] /*n_kwwritable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwwritable*/)( variable[2] /*n_kwwritable*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwwritable*/)( variable[2] /*n_kwwritable*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label264: while(false);
+  return_label282: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWriteAble].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3364, LOCATE_parser_prod___AIdMethid___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 3395, LOCATE_parser_prod___AIdMethid___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label265: while(false);
+  return_label283: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3385, LOCATE_parser_prod___AIdMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3416, LOCATE_parser_prod___AIdMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIdMethid___replace_child, LOCATE_parser_prod, 3387); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIdMethid____n_id(variable[4]) /*AIdMethid::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIdMethid___replace_child, LOCATE_parser_prod, 3418); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIdMethid___replace_child, LOCATE_parser_prod, 3391); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIdMethid____n_id(variable[4]) /*AIdMethid::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIdMethid___replace_child, LOCATE_parser_prod, 3422); nit_exit(1);}
+      ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIdMethid____n_id(variable[4]) /*AIdMethid::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label266;
+    goto return_label284;
   }
-  return_label266: while(false);
+  return_label284: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3400, LOCATE_parser_prod___AIdMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3431, LOCATE_parser_prod___AIdMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label267: while(false);
+  return_label285: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3407, LOCATE_parser_prod___AIdMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3438, LOCATE_parser_prod___AIdMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label268: while(false);
+  return_label286: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3372, LOCATE_parser_prod___AIdMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3403, LOCATE_parser_prod___AIdMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIdMethid].i]) return;
-  return_label269: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label287: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIdMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIdMethid___init_aidmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3374, LOCATE_parser_prod___AIdMethid___init_aidmethid};
+  struct trace_t trace = {NULL, NULL, 3405, LOCATE_parser_prod___AIdMethid___init_aidmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIdMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AIdMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AIdMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIdMethid____n_id(variable[3]) /*AIdMethid::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AIdMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIdMethid::empty_init*/;
+  ATTR_parser_nodes___AIdMethid____n_id(variable[0]) /*AIdMethid::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label270: while(false);
+  return_label288: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIdMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___n_plus__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3415, LOCATE_parser_prod___APlusMethid___n_plus__eq};
+  struct trace_t trace = {NULL, NULL, 3446, LOCATE_parser_prod___APlusMethid___n_plus__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label271: while(false);
+  return_label289: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3436, LOCATE_parser_prod___APlusMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3467, LOCATE_parser_prod___APlusMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusMethid___replace_child, LOCATE_parser_prod, 3438); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APlusMethid____n_plus(variable[4]) /*APlusMethid::_n_plus*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusMethid___replace_child, LOCATE_parser_prod, 3469); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TPlus, ID_TPlus)) /*cast TPlus*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusMethid___replace_child, LOCATE_parser_prod, 3442); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APlusMethid____n_plus(variable[4]) /*APlusMethid::_n_plus*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusMethid___replace_child, LOCATE_parser_prod, 3473); nit_exit(1);}
+      ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APlusMethid____n_plus(variable[4]) /*APlusMethid::_n_plus*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/ =  NIT_NULL /*null*/;
     }
-    goto return_label272;
+    goto return_label290;
   }
-  return_label272: while(false);
+  return_label290: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3451, LOCATE_parser_prod___APlusMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3482, LOCATE_parser_prod___APlusMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label273: while(false);
+  return_label291: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3458, LOCATE_parser_prod___APlusMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3489, LOCATE_parser_prod___APlusMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label274: while(false);
+  return_label292: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3423, LOCATE_parser_prod___APlusMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3454, LOCATE_parser_prod___APlusMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusMethid].i]) return;
-  return_label275: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label293: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusMethid___init_aplusmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3425, LOCATE_parser_prod___APlusMethid___init_aplusmethid};
+  struct trace_t trace = {NULL, NULL, 3456, LOCATE_parser_prod___APlusMethid___init_aplusmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___APlusMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*APlusMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APlusMethid____n_plus(variable[3]) /*APlusMethid::_n_plus*/ =  variable[1] /*n_plus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___APlusMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APlusMethid::empty_init*/;
+  ATTR_parser_nodes___APlusMethid____n_plus(variable[0]) /*APlusMethid::_n_plus*/ =  variable[1] /*n_plus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_plus*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_plus*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_plus*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_plus*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_plus*/)( variable[1] /*n_plus*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_plus*/)( variable[1] /*n_plus*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_plus*/)( variable[1] /*n_plus*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label276: while(false);
+  return_label294: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___n_minus__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3466, LOCATE_parser_prod___AMinusMethid___n_minus__eq};
+  struct trace_t trace = {NULL, NULL, 3497, LOCATE_parser_prod___AMinusMethid___n_minus__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label277: while(false);
+  return_label295: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3487, LOCATE_parser_prod___AMinusMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3518, LOCATE_parser_prod___AMinusMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusMethid___replace_child, LOCATE_parser_prod, 3489); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[4]) /*AMinusMethid::_n_minus*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusMethid___replace_child, LOCATE_parser_prod, 3520); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TMinus, ID_TMinus)) /*cast TMinus*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusMethid___replace_child, LOCATE_parser_prod, 3493); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMinusMethid____n_minus(variable[4]) /*AMinusMethid::_n_minus*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusMethid___replace_child, LOCATE_parser_prod, 3524); nit_exit(1);}
+      ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMinusMethid____n_minus(variable[4]) /*AMinusMethid::_n_minus*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/ =  NIT_NULL /*null*/;
     }
-    goto return_label278;
+    goto return_label296;
   }
-  return_label278: while(false);
+  return_label296: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3502, LOCATE_parser_prod___AMinusMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3533, LOCATE_parser_prod___AMinusMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label279: while(false);
+  return_label297: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3509, LOCATE_parser_prod___AMinusMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3540, LOCATE_parser_prod___AMinusMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label280: while(false);
+  return_label298: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3474, LOCATE_parser_prod___AMinusMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3505, LOCATE_parser_prod___AMinusMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusMethid].i]) return;
-  return_label281: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label299: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusMethid___init_aminusmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3476, LOCATE_parser_prod___AMinusMethid___init_aminusmethid};
+  struct trace_t trace = {NULL, NULL, 3507, LOCATE_parser_prod___AMinusMethid___init_aminusmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AMinusMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AMinusMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMinusMethid____n_minus(variable[3]) /*AMinusMethid::_n_minus*/ =  variable[1] /*n_minus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AMinusMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMinusMethid::empty_init*/;
+  ATTR_parser_nodes___AMinusMethid____n_minus(variable[0]) /*AMinusMethid::_n_minus*/ =  variable[1] /*n_minus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_minus*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_minus*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_minus*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_minus*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label282: while(false);
+  return_label300: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___n_star__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3517, LOCATE_parser_prod___AStarMethid___n_star__eq};
+  struct trace_t trace = {NULL, NULL, 3548, LOCATE_parser_prod___AStarMethid___n_star__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label283: while(false);
+  return_label301: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3538, LOCATE_parser_prod___AStarMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3569, LOCATE_parser_prod___AStarMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarMethid___replace_child, LOCATE_parser_prod, 3540); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AStarMethid____n_star(variable[4]) /*AStarMethid::_n_star*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarMethid___replace_child, LOCATE_parser_prod, 3571); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TStar, ID_TStar)) /*cast TStar*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarMethid___replace_child, LOCATE_parser_prod, 3544); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStarMethid____n_star(variable[4]) /*AStarMethid::_n_star*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarMethid___replace_child, LOCATE_parser_prod, 3575); nit_exit(1);}
+      ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStarMethid____n_star(variable[4]) /*AStarMethid::_n_star*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/ =  NIT_NULL /*null*/;
     }
-    goto return_label284;
+    goto return_label302;
   }
-  return_label284: while(false);
+  return_label302: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3553, LOCATE_parser_prod___AStarMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3584, LOCATE_parser_prod___AStarMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label285: while(false);
+  return_label303: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3560, LOCATE_parser_prod___AStarMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3591, LOCATE_parser_prod___AStarMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label286: while(false);
+  return_label304: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3525, LOCATE_parser_prod___AStarMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3556, LOCATE_parser_prod___AStarMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarMethid].i]) return;
-  return_label287: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label305: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarMethid___init_astarmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3527, LOCATE_parser_prod___AStarMethid___init_astarmethid};
+  struct trace_t trace = {NULL, NULL, 3558, LOCATE_parser_prod___AStarMethid___init_astarmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AStarMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AStarMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStarMethid____n_star(variable[3]) /*AStarMethid::_n_star*/ =  variable[1] /*n_star*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AStarMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStarMethid::empty_init*/;
+  ATTR_parser_nodes___AStarMethid____n_star(variable[0]) /*AStarMethid::_n_star*/ =  variable[1] /*n_star*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_star*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_star*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_star*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_star*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_star*/)( variable[1] /*n_star*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_star*/)( variable[1] /*n_star*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_star*/)( variable[1] /*n_star*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label288: while(false);
+  return_label306: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___n_slash__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3568, LOCATE_parser_prod___ASlashMethid___n_slash__eq};
+  struct trace_t trace = {NULL, NULL, 3599, LOCATE_parser_prod___ASlashMethid___n_slash__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label289: while(false);
+  return_label307: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3589, LOCATE_parser_prod___ASlashMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3620, LOCATE_parser_prod___ASlashMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashMethid___replace_child, LOCATE_parser_prod, 3591); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[4]) /*ASlashMethid::_n_slash*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashMethid___replace_child, LOCATE_parser_prod, 3622); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TSlash, ID_TSlash)) /*cast TSlash*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashMethid___replace_child, LOCATE_parser_prod, 3595); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASlashMethid____n_slash(variable[4]) /*ASlashMethid::_n_slash*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashMethid___replace_child, LOCATE_parser_prod, 3626); nit_exit(1);}
+      ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASlashMethid____n_slash(variable[4]) /*ASlashMethid::_n_slash*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/ =  NIT_NULL /*null*/;
     }
-    goto return_label290;
+    goto return_label308;
   }
-  return_label290: while(false);
+  return_label308: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3604, LOCATE_parser_prod___ASlashMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3635, LOCATE_parser_prod___ASlashMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label291: while(false);
+  return_label309: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3611, LOCATE_parser_prod___ASlashMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3642, LOCATE_parser_prod___ASlashMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label292: while(false);
+  return_label310: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3576, LOCATE_parser_prod___ASlashMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3607, LOCATE_parser_prod___ASlashMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashMethid].i]) return;
-  return_label293: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label311: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashMethid___init_aslashmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3578, LOCATE_parser_prod___ASlashMethid___init_aslashmethid};
+  struct trace_t trace = {NULL, NULL, 3609, LOCATE_parser_prod___ASlashMethid___init_aslashmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ASlashMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ASlashMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASlashMethid____n_slash(variable[3]) /*ASlashMethid::_n_slash*/ =  variable[1] /*n_slash*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ASlashMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASlashMethid::empty_init*/;
+  ATTR_parser_nodes___ASlashMethid____n_slash(variable[0]) /*ASlashMethid::_n_slash*/ =  variable[1] /*n_slash*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_slash*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_slash*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_slash*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_slash*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_slash*/)( variable[1] /*n_slash*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_slash*/)( variable[1] /*n_slash*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_slash*/)( variable[1] /*n_slash*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label294: while(false);
+  return_label312: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___n_percent__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3619, LOCATE_parser_prod___APercentMethid___n_percent__eq};
+  struct trace_t trace = {NULL, NULL, 3650, LOCATE_parser_prod___APercentMethid___n_percent__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label295: while(false);
+  return_label313: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3640, LOCATE_parser_prod___APercentMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3671, LOCATE_parser_prod___APercentMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentMethid___replace_child, LOCATE_parser_prod, 3642); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APercentMethid____n_percent(variable[4]) /*APercentMethid::_n_percent*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentMethid___replace_child, LOCATE_parser_prod, 3673); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TPercent, ID_TPercent)) /*cast TPercent*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentMethid___replace_child, LOCATE_parser_prod, 3646); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APercentMethid____n_percent(variable[4]) /*APercentMethid::_n_percent*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentMethid___replace_child, LOCATE_parser_prod, 3677); nit_exit(1);}
+      ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APercentMethid____n_percent(variable[4]) /*APercentMethid::_n_percent*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/ =  NIT_NULL /*null*/;
     }
-    goto return_label296;
+    goto return_label314;
   }
-  return_label296: while(false);
+  return_label314: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3655, LOCATE_parser_prod___APercentMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3686, LOCATE_parser_prod___APercentMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label297: while(false);
+  return_label315: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3662, LOCATE_parser_prod___APercentMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3693, LOCATE_parser_prod___APercentMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label298: while(false);
+  return_label316: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3627, LOCATE_parser_prod___APercentMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3658, LOCATE_parser_prod___APercentMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentMethid].i]) return;
-  return_label299: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label317: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentMethid___init_apercentmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3629, LOCATE_parser_prod___APercentMethid___init_apercentmethid};
+  struct trace_t trace = {NULL, NULL, 3660, LOCATE_parser_prod___APercentMethid___init_apercentmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___APercentMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*APercentMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APercentMethid____n_percent(variable[3]) /*APercentMethid::_n_percent*/ =  variable[1] /*n_percent*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___APercentMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APercentMethid::empty_init*/;
+  ATTR_parser_nodes___APercentMethid____n_percent(variable[0]) /*APercentMethid::_n_percent*/ =  variable[1] /*n_percent*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_percent*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_percent*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_percent*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_percent*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_percent*/)( variable[1] /*n_percent*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_percent*/)( variable[1] /*n_percent*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_percent*/)( variable[1] /*n_percent*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label300: while(false);
+  return_label318: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___n_eq__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3670, LOCATE_parser_prod___AEqMethid___n_eq__eq};
+  struct trace_t trace = {NULL, NULL, 3701, LOCATE_parser_prod___AEqMethid___n_eq__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label301: while(false);
+  return_label319: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3691, LOCATE_parser_prod___AEqMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3722, LOCATE_parser_prod___AEqMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqMethid___replace_child, LOCATE_parser_prod, 3693); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AEqMethid____n_eq(variable[4]) /*AEqMethid::_n_eq*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqMethid___replace_child, LOCATE_parser_prod, 3724); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TEq, ID_TEq)) /*cast TEq*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqMethid___replace_child, LOCATE_parser_prod, 3697); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEqMethid____n_eq(variable[4]) /*AEqMethid::_n_eq*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqMethid___replace_child, LOCATE_parser_prod, 3728); nit_exit(1);}
+      ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEqMethid____n_eq(variable[4]) /*AEqMethid::_n_eq*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/ =  NIT_NULL /*null*/;
     }
-    goto return_label302;
+    goto return_label320;
   }
-  return_label302: while(false);
+  return_label320: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3706, LOCATE_parser_prod___AEqMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3737, LOCATE_parser_prod___AEqMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label303: while(false);
+  return_label321: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3713, LOCATE_parser_prod___AEqMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3744, LOCATE_parser_prod___AEqMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label304: while(false);
+  return_label322: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3678, LOCATE_parser_prod___AEqMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3709, LOCATE_parser_prod___AEqMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqMethid].i]) return;
-  return_label305: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label323: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqMethid___init_aeqmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3680, LOCATE_parser_prod___AEqMethid___init_aeqmethid};
+  struct trace_t trace = {NULL, NULL, 3711, LOCATE_parser_prod___AEqMethid___init_aeqmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AEqMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AEqMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEqMethid____n_eq(variable[3]) /*AEqMethid::_n_eq*/ =  variable[1] /*n_eq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AEqMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AEqMethid::empty_init*/;
+  ATTR_parser_nodes___AEqMethid____n_eq(variable[0]) /*AEqMethid::_n_eq*/ =  variable[1] /*n_eq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_eq*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_eq*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_eq*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_eq*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_eq*/)( variable[1] /*n_eq*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_eq*/)( variable[1] /*n_eq*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_eq*/)( variable[1] /*n_eq*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label306: while(false);
+  return_label324: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___n_ne__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3721, LOCATE_parser_prod___ANeMethid___n_ne__eq};
+  struct trace_t trace = {NULL, NULL, 3752, LOCATE_parser_prod___ANeMethid___n_ne__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label307: while(false);
+  return_label325: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3742, LOCATE_parser_prod___ANeMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3773, LOCATE_parser_prod___ANeMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeMethid___replace_child, LOCATE_parser_prod, 3744); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANeMethid____n_ne(variable[4]) /*ANeMethid::_n_ne*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeMethid___replace_child, LOCATE_parser_prod, 3775); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TNe, ID_TNe)) /*cast TNe*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeMethid___replace_child, LOCATE_parser_prod, 3748); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANeMethid____n_ne(variable[4]) /*ANeMethid::_n_ne*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeMethid___replace_child, LOCATE_parser_prod, 3779); nit_exit(1);}
+      ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANeMethid____n_ne(variable[4]) /*ANeMethid::_n_ne*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/ =  NIT_NULL /*null*/;
     }
-    goto return_label308;
+    goto return_label326;
   }
-  return_label308: while(false);
+  return_label326: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3757, LOCATE_parser_prod___ANeMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3788, LOCATE_parser_prod___ANeMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label309: while(false);
+  return_label327: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3764, LOCATE_parser_prod___ANeMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3795, LOCATE_parser_prod___ANeMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label310: while(false);
+  return_label328: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3729, LOCATE_parser_prod___ANeMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3760, LOCATE_parser_prod___ANeMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeMethid].i]) return;
-  return_label311: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label329: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeMethid___init_anemethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3731, LOCATE_parser_prod___ANeMethid___init_anemethid};
+  struct trace_t trace = {NULL, NULL, 3762, LOCATE_parser_prod___ANeMethid___init_anemethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ANeMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ANeMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANeMethid____n_ne(variable[3]) /*ANeMethid::_n_ne*/ =  variable[1] /*n_ne*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ANeMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANeMethid::empty_init*/;
+  ATTR_parser_nodes___ANeMethid____n_ne(variable[0]) /*ANeMethid::_n_ne*/ =  variable[1] /*n_ne*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_ne*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_ne*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_ne*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_ne*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_ne*/)( variable[1] /*n_ne*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_ne*/)( variable[1] /*n_ne*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_ne*/)( variable[1] /*n_ne*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label312: while(false);
+  return_label330: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___n_le__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3772, LOCATE_parser_prod___ALeMethid___n_le__eq};
+  struct trace_t trace = {NULL, NULL, 3803, LOCATE_parser_prod___ALeMethid___n_le__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label313: while(false);
+  return_label331: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3793, LOCATE_parser_prod___ALeMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3824, LOCATE_parser_prod___ALeMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeMethid___replace_child, LOCATE_parser_prod, 3795); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ALeMethid____n_le(variable[4]) /*ALeMethid::_n_le*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeMethid___replace_child, LOCATE_parser_prod, 3826); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TLe, ID_TLe)) /*cast TLe*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeMethid___replace_child, LOCATE_parser_prod, 3799); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ALeMethid____n_le(variable[4]) /*ALeMethid::_n_le*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeMethid___replace_child, LOCATE_parser_prod, 3830); nit_exit(1);}
+      ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ALeMethid____n_le(variable[4]) /*ALeMethid::_n_le*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/ =  NIT_NULL /*null*/;
     }
-    goto return_label314;
+    goto return_label332;
   }
-  return_label314: while(false);
+  return_label332: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3808, LOCATE_parser_prod___ALeMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3839, LOCATE_parser_prod___ALeMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label315: while(false);
+  return_label333: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3815, LOCATE_parser_prod___ALeMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3846, LOCATE_parser_prod___ALeMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label316: while(false);
+  return_label334: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3780, LOCATE_parser_prod___ALeMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3811, LOCATE_parser_prod___ALeMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeMethid].i]) return;
-  return_label317: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label335: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeMethid___init_alemethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3782, LOCATE_parser_prod___ALeMethid___init_alemethid};
+  struct trace_t trace = {NULL, NULL, 3813, LOCATE_parser_prod___ALeMethid___init_alemethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ALeMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ALeMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ALeMethid____n_le(variable[3]) /*ALeMethid::_n_le*/ =  variable[1] /*n_le*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ALeMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ALeMethid::empty_init*/;
+  ATTR_parser_nodes___ALeMethid____n_le(variable[0]) /*ALeMethid::_n_le*/ =  variable[1] /*n_le*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_le*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_le*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_le*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_le*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_le*/)( variable[1] /*n_le*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_le*/)( variable[1] /*n_le*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_le*/)( variable[1] /*n_le*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label318: while(false);
+  return_label336: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___n_ge__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3823, LOCATE_parser_prod___AGeMethid___n_ge__eq};
+  struct trace_t trace = {NULL, NULL, 3854, LOCATE_parser_prod___AGeMethid___n_ge__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label319: while(false);
+  return_label337: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3844, LOCATE_parser_prod___AGeMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3875, LOCATE_parser_prod___AGeMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeMethid___replace_child, LOCATE_parser_prod, 3846); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AGeMethid____n_ge(variable[4]) /*AGeMethid::_n_ge*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeMethid___replace_child, LOCATE_parser_prod, 3877); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TGe, ID_TGe)) /*cast TGe*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeMethid___replace_child, LOCATE_parser_prod, 3850); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AGeMethid____n_ge(variable[4]) /*AGeMethid::_n_ge*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeMethid___replace_child, LOCATE_parser_prod, 3881); nit_exit(1);}
+      ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AGeMethid____n_ge(variable[4]) /*AGeMethid::_n_ge*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/ =  NIT_NULL /*null*/;
     }
-    goto return_label320;
+    goto return_label338;
   }
-  return_label320: while(false);
+  return_label338: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3859, LOCATE_parser_prod___AGeMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3890, LOCATE_parser_prod___AGeMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label321: while(false);
+  return_label339: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3866, LOCATE_parser_prod___AGeMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3897, LOCATE_parser_prod___AGeMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label322: while(false);
+  return_label340: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3831, LOCATE_parser_prod___AGeMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3862, LOCATE_parser_prod___AGeMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeMethid].i]) return;
-  return_label323: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label341: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeMethid___init_agemethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3833, LOCATE_parser_prod___AGeMethid___init_agemethid};
+  struct trace_t trace = {NULL, NULL, 3864, LOCATE_parser_prod___AGeMethid___init_agemethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AGeMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AGeMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AGeMethid____n_ge(variable[3]) /*AGeMethid::_n_ge*/ =  variable[1] /*n_ge*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AGeMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AGeMethid::empty_init*/;
+  ATTR_parser_nodes___AGeMethid____n_ge(variable[0]) /*AGeMethid::_n_ge*/ =  variable[1] /*n_ge*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_ge*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_ge*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_ge*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_ge*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_ge*/)( variable[1] /*n_ge*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_ge*/)( variable[1] /*n_ge*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_ge*/)( variable[1] /*n_ge*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label324: while(false);
+  return_label342: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___n_lt__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3874, LOCATE_parser_prod___ALtMethid___n_lt__eq};
+  struct trace_t trace = {NULL, NULL, 3905, LOCATE_parser_prod___ALtMethid___n_lt__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label325: while(false);
+  return_label343: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3895, LOCATE_parser_prod___ALtMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3926, LOCATE_parser_prod___ALtMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtMethid___replace_child, LOCATE_parser_prod, 3897); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ALtMethid____n_lt(variable[4]) /*ALtMethid::_n_lt*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtMethid___replace_child, LOCATE_parser_prod, 3928); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TLt, ID_TLt)) /*cast TLt*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtMethid___replace_child, LOCATE_parser_prod, 3901); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ALtMethid____n_lt(variable[4]) /*ALtMethid::_n_lt*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtMethid___replace_child, LOCATE_parser_prod, 3932); nit_exit(1);}
+      ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ALtMethid____n_lt(variable[4]) /*ALtMethid::_n_lt*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/ =  NIT_NULL /*null*/;
     }
-    goto return_label326;
+    goto return_label344;
   }
-  return_label326: while(false);
+  return_label344: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3910, LOCATE_parser_prod___ALtMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3941, LOCATE_parser_prod___ALtMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label327: while(false);
+  return_label345: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3917, LOCATE_parser_prod___ALtMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3948, LOCATE_parser_prod___ALtMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label328: while(false);
+  return_label346: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3882, LOCATE_parser_prod___ALtMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3913, LOCATE_parser_prod___ALtMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtMethid].i]) return;
-  return_label329: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label347: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtMethid___init_altmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3884, LOCATE_parser_prod___ALtMethid___init_altmethid};
+  struct trace_t trace = {NULL, NULL, 3915, LOCATE_parser_prod___ALtMethid___init_altmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ALtMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ALtMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ALtMethid____n_lt(variable[3]) /*ALtMethid::_n_lt*/ =  variable[1] /*n_lt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ALtMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ALtMethid::empty_init*/;
+  ATTR_parser_nodes___ALtMethid____n_lt(variable[0]) /*ALtMethid::_n_lt*/ =  variable[1] /*n_lt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_lt*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_lt*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_lt*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_lt*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_lt*/)( variable[1] /*n_lt*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_lt*/)( variable[1] /*n_lt*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_lt*/)( variable[1] /*n_lt*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label330: while(false);
+  return_label348: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___n_gt__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3925, LOCATE_parser_prod___AGtMethid___n_gt__eq};
+  struct trace_t trace = {NULL, NULL, 3956, LOCATE_parser_prod___AGtMethid___n_gt__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label331: while(false);
+  return_label349: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 3946, LOCATE_parser_prod___AGtMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 3977, LOCATE_parser_prod___AGtMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtMethid___replace_child, LOCATE_parser_prod, 3948); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AGtMethid____n_gt(variable[4]) /*AGtMethid::_n_gt*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtMethid___replace_child, LOCATE_parser_prod, 3979); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TGt, ID_TGt)) /*cast TGt*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtMethid___replace_child, LOCATE_parser_prod, 3952); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AGtMethid____n_gt(variable[4]) /*AGtMethid::_n_gt*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtMethid___replace_child, LOCATE_parser_prod, 3983); nit_exit(1);}
+      ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AGtMethid____n_gt(variable[4]) /*AGtMethid::_n_gt*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/ =  NIT_NULL /*null*/;
     }
-    goto return_label332;
+    goto return_label350;
   }
-  return_label332: while(false);
+  return_label350: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3961, LOCATE_parser_prod___AGtMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 3992, LOCATE_parser_prod___AGtMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label333: while(false);
+  return_label351: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3968, LOCATE_parser_prod___AGtMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 3999, LOCATE_parser_prod___AGtMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label334: while(false);
+  return_label352: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3933, LOCATE_parser_prod___AGtMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 3964, LOCATE_parser_prod___AGtMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtMethid].i]) return;
-  return_label335: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label353: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtMethid___init_agtmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3935, LOCATE_parser_prod___AGtMethid___init_agtmethid};
+  struct trace_t trace = {NULL, NULL, 3966, LOCATE_parser_prod___AGtMethid___init_agtmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AGtMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AGtMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AGtMethid____n_gt(variable[3]) /*AGtMethid::_n_gt*/ =  variable[1] /*n_gt*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AGtMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AGtMethid::empty_init*/;
+  ATTR_parser_nodes___AGtMethid____n_gt(variable[0]) /*AGtMethid::_n_gt*/ =  variable[1] /*n_gt*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_gt*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_gt*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_gt*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_gt*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_gt*/)( variable[1] /*n_gt*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_gt*/)( variable[1] /*n_gt*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_gt*/)( variable[1] /*n_gt*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label336: while(false);
+  return_label354: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___n_obra__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3976, LOCATE_parser_prod___ABraMethid___n_obra__eq};
+  struct trace_t trace = {NULL, NULL, 4007, LOCATE_parser_prod___ABraMethid___n_obra__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABraMethid____n_obra(variable[3]) /*ABraMethid::_n_obra*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label337: while(false);
+  return_label355: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___n_cbra__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 3983, LOCATE_parser_prod___ABraMethid___n_cbra__eq};
+  struct trace_t trace = {NULL, NULL, 4014, LOCATE_parser_prod___ABraMethid___n_cbra__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABraMethid____n_cbra(variable[3]) /*ABraMethid::_n_cbra*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label338: while(false);
+  return_label356: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4009, LOCATE_parser_prod___ABraMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 4040, LOCATE_parser_prod___ABraMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4011); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraMethid____n_obra(variable[4]) /*ABraMethid::_n_obra*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4042); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TObra, ID_TObra)) /*cast TObra*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4015); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraMethid____n_obra(variable[4]) /*ABraMethid::_n_obra*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4046); nit_exit(1);}
+      ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraMethid____n_obra(variable[4]) /*ABraMethid::_n_obra*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/ =  NIT_NULL /*null*/;
     }
-    goto return_label339;
+    goto return_label357;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[4]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TCbra, ID_TCbra)) /*cast TCbra*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4025); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraMethid____n_cbra(variable[4]) /*ABraMethid::_n_cbra*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraMethid___replace_child, LOCATE_parser_prod, 4056); nit_exit(1);}
+      ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraMethid____n_cbra(variable[4]) /*ABraMethid::_n_cbra*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/ =  NIT_NULL /*null*/;
     }
-    goto return_label339;
+    goto return_label357;
   }
-  return_label339: while(false);
+  return_label357: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4034, LOCATE_parser_prod___ABraMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 4065, LOCATE_parser_prod___ABraMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[3]) /*ABraMethid::_n_obra*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[3]) /*ABraMethid::_n_obra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[3]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[3]) /*ABraMethid::_n_cbra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label340: while(false);
+  return_label358: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4044, LOCATE_parser_prod___ABraMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4075, LOCATE_parser_prod___ABraMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[3]) /*ABraMethid::_n_obra*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[3]) /*ABraMethid::_n_obra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[3]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[3]) /*ABraMethid::_n_cbra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label341: while(false);
+  return_label359: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3991, LOCATE_parser_prod___ABraMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 4022, LOCATE_parser_prod___ABraMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraMethid].i]) return;
-  return_label342: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label360: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraMethid___init_abramethid(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 3993, LOCATE_parser_prod___ABraMethid___init_abramethid};
+  struct trace_t trace = {NULL, NULL, 4024, LOCATE_parser_prod___ABraMethid___init_abramethid};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraMethid].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ABraMethid___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ABraMethid::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABraMethid____n_obra(variable[4]) /*ABraMethid::_n_obra*/ =  variable[1] /*n_obra*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ABraMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABraMethid::empty_init*/;
+  ATTR_parser_nodes___ABraMethid____n_obra(variable[0]) /*ABraMethid::_n_obra*/ =  variable[1] /*n_obra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_obra*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_obra*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_obra*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_obra*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABraMethid____n_cbra(variable[4]) /*ABraMethid::_n_cbra*/ =  variable[2] /*n_cbra*/;
+  ATTR_parser_nodes___ABraMethid____n_cbra(variable[0]) /*ABraMethid::_n_cbra*/ =  variable[2] /*n_cbra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_cbra*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_cbra*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_cbra*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_cbra*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label343: while(false);
+  return_label361: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___n_starship__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4055, LOCATE_parser_prod___AStarshipMethid___n_starship__eq};
+  struct trace_t trace = {NULL, NULL, 4086, LOCATE_parser_prod___AStarshipMethid___n_starship__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label344: while(false);
+  return_label362: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4076, LOCATE_parser_prod___AStarshipMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 4107, LOCATE_parser_prod___AStarshipMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipMethid___replace_child, LOCATE_parser_prod, 4078); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[4]) /*AStarshipMethid::_n_starship*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipMethid___replace_child, LOCATE_parser_prod, 4109); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TStarship, ID_TStarship)) /*cast TStarship*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipMethid___replace_child, LOCATE_parser_prod, 4082); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStarshipMethid____n_starship(variable[4]) /*AStarshipMethid::_n_starship*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipMethid___replace_child, LOCATE_parser_prod, 4113); nit_exit(1);}
+      ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStarshipMethid____n_starship(variable[4]) /*AStarshipMethid::_n_starship*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/ =  NIT_NULL /*null*/;
     }
-    goto return_label345;
+    goto return_label363;
   }
-  return_label345: while(false);
+  return_label363: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4091, LOCATE_parser_prod___AStarshipMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 4122, LOCATE_parser_prod___AStarshipMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label346: while(false);
+  return_label364: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4098, LOCATE_parser_prod___AStarshipMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4129, LOCATE_parser_prod___AStarshipMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label347: while(false);
+  return_label365: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4063, LOCATE_parser_prod___AStarshipMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 4094, LOCATE_parser_prod___AStarshipMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipMethid].i]) return;
-  return_label348: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label366: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipMethid___init_astarshipmethid(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4065, LOCATE_parser_prod___AStarshipMethid___init_astarshipmethid};
+  struct trace_t trace = {NULL, NULL, 4096, LOCATE_parser_prod___AStarshipMethid___init_astarshipmethid};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipMethid].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AStarshipMethid___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AStarshipMethid::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStarshipMethid____n_starship(variable[3]) /*AStarshipMethid::_n_starship*/ =  variable[1] /*n_starship*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AStarshipMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStarshipMethid::empty_init*/;
+  ATTR_parser_nodes___AStarshipMethid____n_starship(variable[0]) /*AStarshipMethid::_n_starship*/ =  variable[1] /*n_starship*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_starship*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_starship*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_starship*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_starship*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_starship*/)( variable[1] /*n_starship*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_starship*/)( variable[1] /*n_starship*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_starship*/)( variable[1] /*n_starship*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label349: while(false);
+  return_label367: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4106, LOCATE_parser_prod___AAssignMethid___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 4137, LOCATE_parser_prod___AAssignMethid___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignMethid____n_id(variable[3]) /*AAssignMethid::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label350: while(false);
+  return_label368: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4113, LOCATE_parser_prod___AAssignMethid___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 4144, LOCATE_parser_prod___AAssignMethid___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignMethid____n_assign(variable[3]) /*AAssignMethid::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label351: while(false);
+  return_label369: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4139, LOCATE_parser_prod___AAssignMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 4170, LOCATE_parser_prod___AAssignMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4141); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignMethid____n_id(variable[4]) /*AAssignMethid::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4172); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4145); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignMethid____n_id(variable[4]) /*AAssignMethid::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4176); nit_exit(1);}
+      ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignMethid____n_id(variable[4]) /*AAssignMethid::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label352;
+    goto return_label370;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[4]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4155); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignMethid____n_assign(variable[4]) /*AAssignMethid::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssignMethid___replace_child, LOCATE_parser_prod, 4186); nit_exit(1);}
+      ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignMethid____n_assign(variable[4]) /*AAssignMethid::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label352;
+    goto return_label370;
   }
-  return_label352: while(false);
+  return_label370: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4164, LOCATE_parser_prod___AAssignMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 4195, LOCATE_parser_prod___AAssignMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[3]) /*AAssignMethid::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[3]) /*AAssignMethid::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[3]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[3]) /*AAssignMethid::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label353: while(false);
+  return_label371: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4174, LOCATE_parser_prod___AAssignMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4205, LOCATE_parser_prod___AAssignMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[3]) /*AAssignMethid::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[3]) /*AAssignMethid::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[3]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[3]) /*AAssignMethid::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label354: while(false);
+  return_label372: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4121, LOCATE_parser_prod___AAssignMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 4152, LOCATE_parser_prod___AAssignMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssignMethid].i]) return;
-  return_label355: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label373: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssignMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssignMethid___init_aassignmethid(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4123, LOCATE_parser_prod___AAssignMethid___init_aassignmethid};
+  struct trace_t trace = {NULL, NULL, 4154, LOCATE_parser_prod___AAssignMethid___init_aassignmethid};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssignMethid].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AAssignMethid___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AAssignMethid::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAssignMethid____n_id(variable[4]) /*AAssignMethid::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AAssignMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAssignMethid::empty_init*/;
+  ATTR_parser_nodes___AAssignMethid____n_id(variable[0]) /*AAssignMethid::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAssignMethid____n_assign(variable[4]) /*AAssignMethid::_n_assign*/ =  variable[2] /*n_assign*/;
+  ATTR_parser_nodes___AAssignMethid____n_assign(variable[0]) /*AAssignMethid::_n_assign*/ =  variable[2] /*n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label356: while(false);
+  return_label374: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssignMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___n_obra__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4185, LOCATE_parser_prod___ABraassignMethid___n_obra__eq};
+  struct trace_t trace = {NULL, NULL, 4216, LOCATE_parser_prod___ABraassignMethid___n_obra__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_obra(variable[3]) /*ABraassignMethid::_n_obra*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label357: while(false);
+  return_label375: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___n_cbra__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4192, LOCATE_parser_prod___ABraassignMethid___n_cbra__eq};
+  struct trace_t trace = {NULL, NULL, 4223, LOCATE_parser_prod___ABraassignMethid___n_cbra__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[3]) /*ABraassignMethid::_n_cbra*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label358: while(false);
+  return_label376: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4199, LOCATE_parser_prod___ABraassignMethid___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 4230, LOCATE_parser_prod___ABraassignMethid___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_assign(variable[3]) /*ABraassignMethid::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label359: while(false);
+  return_label377: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4230, LOCATE_parser_prod___ABraassignMethid___replace_child};
+  struct trace_t trace = {NULL, NULL, 4261, LOCATE_parser_prod___ABraassignMethid___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4232); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[4]) /*ABraassignMethid::_n_obra*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4263); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TObra, ID_TObra)) /*cast TObra*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4236); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_obra(variable[4]) /*ABraassignMethid::_n_obra*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4267); nit_exit(1);}
+      ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_obra(variable[4]) /*ABraassignMethid::_n_obra*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/ =  NIT_NULL /*null*/;
     }
-    goto return_label360;
+    goto return_label378;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[4]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TCbra, ID_TCbra)) /*cast TCbra*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4246); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[4]) /*ABraassignMethid::_n_cbra*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4277); nit_exit(1);}
+      ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[4]) /*ABraassignMethid::_n_cbra*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/ =  NIT_NULL /*null*/;
     }
-    goto return_label360;
+    goto return_label378;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[4]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4256); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_assign(variable[4]) /*ABraassignMethid::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraassignMethid___replace_child, LOCATE_parser_prod, 4287); nit_exit(1);}
+      ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABraassignMethid____n_assign(variable[4]) /*ABraassignMethid::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label360;
+    goto return_label378;
   }
-  return_label360: while(false);
+  return_label378: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4265, LOCATE_parser_prod___ABraassignMethid___visit_all};
+  struct trace_t trace = {NULL, NULL, 4296, LOCATE_parser_prod___ABraassignMethid___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[3]) /*ABraassignMethid::_n_obra*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[3]) /*ABraassignMethid::_n_obra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[3]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[3]) /*ABraassignMethid::_n_cbra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[3]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[3]) /*ABraassignMethid::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label361: while(false);
+  return_label379: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4278, LOCATE_parser_prod___ABraassignMethid___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4309, LOCATE_parser_prod___ABraassignMethid___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[3]) /*ABraassignMethid::_n_obra*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[3]) /*ABraassignMethid::_n_obra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[3]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[3]) /*ABraassignMethid::_n_cbra*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[3]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[3]) /*ABraassignMethid::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label362: while(false);
+  return_label380: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4207, LOCATE_parser_prod___ABraassignMethid___empty_init};
+  struct trace_t trace = {NULL, NULL, 4238, LOCATE_parser_prod___ABraassignMethid___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraassignMethid].i]) return;
-  return_label363: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label381: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraassignMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraassignMethid___init_abraassignmethid(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4209, LOCATE_parser_prod___ABraassignMethid___init_abraassignmethid};
+  struct trace_t trace = {NULL, NULL, 4240, LOCATE_parser_prod___ABraassignMethid___init_abraassignmethid};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraassignMethid].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___ABraassignMethid___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*ABraassignMethid::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_obra(variable[5]) /*ABraassignMethid::_n_obra*/ =  variable[1] /*n_obra*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___ABraassignMethid___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABraassignMethid::empty_init*/;
+  ATTR_parser_nodes___ABraassignMethid____n_obra(variable[0]) /*ABraassignMethid::_n_obra*/ =  variable[1] /*n_obra*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_obra*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_obra*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_obra*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_obra*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_obra*/)( variable[1] /*n_obra*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[5]) /*ABraassignMethid::_n_cbra*/ =  variable[2] /*n_cbra*/;
+  ATTR_parser_nodes___ABraassignMethid____n_cbra(variable[0]) /*ABraassignMethid::_n_cbra*/ =  variable[2] /*n_cbra*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_cbra*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_cbra*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_cbra*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_cbra*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_cbra*/)( variable[2] /*n_cbra*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ABraassignMethid____n_assign(variable[5]) /*ABraassignMethid::_n_assign*/ =  variable[3] /*n_assign*/;
+  ATTR_parser_nodes___ABraassignMethid____n_assign(variable[0]) /*ABraassignMethid::_n_assign*/ =  variable[3] /*n_assign*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label364: while(false);
+  return_label382: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraassignMethid].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4292, LOCATE_parser_prod___ASignature___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 4323, LOCATE_parser_prod___ASignature___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASignature____n_type(variable[3]) /*ASignature::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label365: while(false);
+  return_label383: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4327, LOCATE_parser_prod___ASignature___replace_child};
+  struct trace_t trace = {NULL, NULL, 4358, LOCATE_parser_prod___ASignature___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4329); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[4]) /*ASignature::_n_params*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4360); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[7]) /*ASignature::_n_params*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PParam, ID_PParam)) /*cast PParam*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4333); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[7]) /*ASignature::_n_params*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4364); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[7]) /*ASignature::_n_params*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label366;
+      goto return_label384;
     }
-    continue_367: while(0);
+    continue_385: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_367: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASignature____n_type(variable[4]) /*ASignature::_n_type*/;
+  break_385: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4345); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASignature____n_type(variable[4]) /*ASignature::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4376); nit_exit(1);}
+      ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASignature____n_type(variable[4]) /*ASignature::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label366;
+    goto return_label384;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[4]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[7]) /*ASignature::_n_closure_decls*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClosureDecl, ID_PClosureDecl)) /*cast PClosureDecl*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4355); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[7]) /*ASignature::_n_closure_decls*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___replace_child, LOCATE_parser_prod, 4386); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[7]) /*ASignature::_n_closure_decls*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label366;
+      goto return_label384;
     }
-    continue_368: while(0);
+    continue_386: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_368: while(0);
-  return_label366: while(false);
+  break_386: while(0);
+  return_label384: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4366, LOCATE_parser_prod___ASignature___visit_all};
+  struct trace_t trace = {NULL, NULL, 4397, LOCATE_parser_prod___ASignature___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASignature____n_params(variable[3]) /*ASignature::_n_params*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_370: while(0);
+    continue_388: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_370: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[3]) /*ASignature::_n_type*/;
+  break_388: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[3]) /*ASignature::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[3]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_371: while(0);
+    continue_389: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_371: while(0);
-  return_label369: while(false);
+  break_389: while(0);
+  return_label387: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4379, LOCATE_parser_prod___ASignature___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4410, LOCATE_parser_prod___ASignature___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[4]) /*ASignature::_n_params*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[4]) /*ASignature::_n_params*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_373: while(0);
+    continue_391: while(0);
   }
-  break_373: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[3]) /*ASignature::_n_type*/;
+  break_391: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[3]) /*ASignature::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[4]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[4]) /*ASignature::_n_closure_decls*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_374: while(0);
+    continue_392: while(0);
   }
-  break_374: while(0);
-  return_label372: while(false);
+  break_392: while(0);
+  return_label390: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4300, LOCATE_parser_prod___ASignature___empty_init};
+  struct trace_t trace = {NULL, NULL, 4331, LOCATE_parser_prod___ASignature___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASignature].i]) return;
-  return_label375: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label393: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASignature].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASignature___init_asignature(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4302, LOCATE_parser_prod___ASignature___init_asignature};
+  struct trace_t trace = {NULL, NULL, 4333, LOCATE_parser_prod___ASignature___init_asignature};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASignature].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___ASignature___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*ASignature::empty_init*/;
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PParam]*/
-  ATTR_parser_nodes___ASignature____n_params(variable[5]) /*ASignature::_n_params*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_params*/)( variable[1] /*n_params*/) /*AbstractArray::iterator*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___ASignature___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASignature::empty_init*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PParam]*/;
+  ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_params*/)( variable[1] /*n_params*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PParam, ID_PParam)) /*cast PParam*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___init_asignature, LOCATE_parser_prod, 4311); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___ASignature____n_params(variable[8]) /*ASignature::_n_params*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___init_asignature, LOCATE_parser_prod, 4342); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___ASignature____n_params(variable[0]) /*ASignature::_n_params*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_377: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
-  }
-  break_377: while(0);
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ASignature____n_type(variable[5]) /*ASignature::_n_type*/ =  variable[2] /*n_type*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_395: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
+  }
+  break_395: while(0);
+  ATTR_parser_nodes___ASignature____n_type(variable[0]) /*ASignature::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PClosureDecl]*/
-  ATTR_parser_nodes___ASignature____n_closure_decls(variable[5]) /*ASignature::_n_closure_decls*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_closure_decls*/)( variable[3] /*n_closure_decls*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PClosureDecl]*/;
+  ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_closure_decls*/)( variable[3] /*n_closure_decls*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PClosureDecl, ID_PClosureDecl)) /*cast PClosureDecl*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___init_asignature, LOCATE_parser_prod, 4321); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[8]) /*ASignature::_n_closure_decls*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASignature___init_asignature, LOCATE_parser_prod, 4352); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___ASignature____n_closure_decls(variable[0]) /*ASignature::_n_closure_decls*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_378: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_396: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_378: while(0);
-  return_label376: while(false);
+  break_396: while(0);
+  return_label394: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASignature].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4401, LOCATE_parser_prod___AParam___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 4432, LOCATE_parser_prod___AParam___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PParam____n_id(variable[3]) /*PParam::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label379: while(false);
+  return_label397: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4408, LOCATE_parser_prod___AParam___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 4439, LOCATE_parser_prod___AParam___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___PParam____n_type(variable[3]) /*PParam::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label380: while(false);
+  return_label398: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___n_dotdotdot__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4415, LOCATE_parser_prod___AParam___n_dotdotdot__eq};
+  struct trace_t trace = {NULL, NULL, 4446, LOCATE_parser_prod___AParam___n_dotdotdot__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AParam____n_dotdotdot(variable[3]) /*AParam::_n_dotdotdot*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label381: while(false);
+  return_label399: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4446, LOCATE_parser_prod___AParam___replace_child};
+  struct trace_t trace = {NULL, NULL, 4477, LOCATE_parser_prod___AParam___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4448); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PParam____n_id(variable[4]) /*PParam::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4479); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4452); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PParam____n_id(variable[4]) /*PParam::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4483); nit_exit(1);}
+      ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PParam____n_id(variable[4]) /*PParam::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label382;
+    goto return_label400;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___PParam____n_type(variable[4]) /*PParam::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4462); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PParam____n_type(variable[4]) /*PParam::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4493); nit_exit(1);}
+      ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___PParam____n_type(variable[4]) /*PParam::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label382;
+    goto return_label400;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[4]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TDotdotdot, ID_TDotdotdot)) /*cast TDotdotdot*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4472); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AParam____n_dotdotdot(variable[4]) /*AParam::_n_dotdotdot*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParam___replace_child, LOCATE_parser_prod, 4503); nit_exit(1);}
+      ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AParam____n_dotdotdot(variable[4]) /*AParam::_n_dotdotdot*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/ =  NIT_NULL /*null*/;
     }
-    goto return_label382;
+    goto return_label400;
   }
-  return_label382: while(false);
+  return_label400: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4481, LOCATE_parser_prod___AParam___visit_all};
+  struct trace_t trace = {NULL, NULL, 4512, LOCATE_parser_prod___AParam___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PParam____n_id(variable[3]) /*PParam::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PParam____n_id(variable[3]) /*PParam::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PParam____n_type(variable[3]) /*PParam::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PParam____n_type(variable[3]) /*PParam::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[3]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[3]) /*AParam::_n_dotdotdot*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label383: while(false);
+  return_label401: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4494, LOCATE_parser_prod___AParam___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4525, LOCATE_parser_prod___AParam___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PParam____n_id(variable[3]) /*PParam::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PParam____n_id(variable[3]) /*PParam::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___PParam____n_type(variable[3]) /*PParam::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___PParam____n_type(variable[3]) /*PParam::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[3]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[3]) /*AParam::_n_dotdotdot*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label384: while(false);
+  return_label402: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4423, LOCATE_parser_prod___AParam___empty_init};
+  struct trace_t trace = {NULL, NULL, 4454, LOCATE_parser_prod___AParam___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParam].i]) return;
-  return_label385: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label403: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParam].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AParam___init_aparam(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4425, LOCATE_parser_prod___AParam___init_aparam};
+  struct trace_t trace = {NULL, NULL, 4456, LOCATE_parser_prod___AParam___init_aparam};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParam].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AParam___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AParam::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___PParam____n_id(variable[5]) /*PParam::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AParam___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AParam::empty_init*/;
+  ATTR_parser_nodes___PParam____n_id(variable[0]) /*PParam::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___PParam____n_type(variable[5]) /*PParam::_n_type*/ =  variable[2] /*n_type*/;
+  ATTR_parser_nodes___PParam____n_type(variable[0]) /*PParam::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AParam____n_dotdotdot(variable[5]) /*AParam::_n_dotdotdot*/ =  variable[3] /*n_dotdotdot*/;
+  ATTR_parser_nodes___AParam____n_dotdotdot(variable[0]) /*AParam::_n_dotdotdot*/ =  variable[3] /*n_dotdotdot*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_dotdotdot*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_dotdotdot*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_dotdotdot*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_dotdotdot*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_dotdotdot*/)( variable[3] /*n_dotdotdot*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_dotdotdot*/)( variable[3] /*n_dotdotdot*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_dotdotdot*/)( variable[3] /*n_dotdotdot*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label386: while(false);
+  return_label404: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParam].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___n_kwwith__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4508, LOCATE_parser_prod___AClosureDecl___n_kwwith__eq};
+  struct trace_t trace = {NULL, NULL, 4539, LOCATE_parser_prod___AClosureDecl___n_kwwith__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[3]) /*AClosureDecl::_n_kwwith*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label387: while(false);
+  return_label405: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___n_kwbreak__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4515, LOCATE_parser_prod___AClosureDecl___n_kwbreak__eq};
+  struct trace_t trace = {NULL, NULL, 4546, LOCATE_parser_prod___AClosureDecl___n_kwbreak__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[3]) /*AClosureDecl::_n_kwbreak*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label388: while(false);
+  return_label406: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4522, LOCATE_parser_prod___AClosureDecl___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 4553, LOCATE_parser_prod___AClosureDecl___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_id(variable[3]) /*AClosureDecl::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label389: while(false);
+  return_label407: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___n_signature__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4529, LOCATE_parser_prod___AClosureDecl___n_signature__eq};
+  struct trace_t trace = {NULL, NULL, 4560, LOCATE_parser_prod___AClosureDecl___n_signature__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_signature(variable[3]) /*AClosureDecl::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label390: while(false);
+  return_label408: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4536, LOCATE_parser_prod___AClosureDecl___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 4567, LOCATE_parser_prod___AClosureDecl___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_expr(variable[3]) /*AClosureDecl::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label391: while(false);
+  return_label409: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4577, LOCATE_parser_prod___AClosureDecl___replace_child};
+  struct trace_t trace = {NULL, NULL, 4608, LOCATE_parser_prod___AClosureDecl___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4579); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[4]) /*AClosureDecl::_n_kwwith*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4610); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwwith, ID_TKwwith)) /*cast TKwwith*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4583); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[4]) /*AClosureDecl::_n_kwwith*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4614); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[4]) /*AClosureDecl::_n_kwwith*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/ =  NIT_NULL /*null*/;
     }
-    goto return_label392;
+    goto return_label410;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[4]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwbreak, ID_TKwbreak)) /*cast TKwbreak*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4593); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[4]) /*AClosureDecl::_n_kwbreak*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4624); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[4]) /*AClosureDecl::_n_kwbreak*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/ =  NIT_NULL /*null*/;
     }
-    goto return_label392;
+    goto return_label410;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDecl____n_id(variable[4]) /*AClosureDecl::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4603); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_id(variable[4]) /*AClosureDecl::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4634); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_id(variable[4]) /*AClosureDecl::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label392;
+    goto return_label410;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[4]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PSignature, ID_PSignature)) /*cast PSignature*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4613); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_signature(variable[4]) /*AClosureDecl::_n_signature*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4644); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_signature(variable[4]) /*AClosureDecl::_n_signature*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/ =  NIT_NULL /*null*/;
     }
-    goto return_label392;
+    goto return_label410;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[4]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4623); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_expr(variable[4]) /*AClosureDecl::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDecl___replace_child, LOCATE_parser_prod, 4654); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDecl____n_expr(variable[4]) /*AClosureDecl::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label392;
+    goto return_label410;
   }
-  return_label392: while(false);
+  return_label410: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4632, LOCATE_parser_prod___AClosureDecl___visit_all};
+  struct trace_t trace = {NULL, NULL, 4663, LOCATE_parser_prod___AClosureDecl___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[3]) /*AClosureDecl::_n_kwwith*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[3]) /*AClosureDecl::_n_kwwith*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[3]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[3]) /*AClosureDecl::_n_kwbreak*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[3]) /*AClosureDecl::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[3]) /*AClosureDecl::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[3]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[3]) /*AClosureDecl::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[3]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[3]) /*AClosureDecl::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label393: while(false);
+  return_label411: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4651, LOCATE_parser_prod___AClosureDecl___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4682, LOCATE_parser_prod___AClosureDecl___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[3]) /*AClosureDecl::_n_kwwith*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[3]) /*AClosureDecl::_n_kwwith*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[3]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[3]) /*AClosureDecl::_n_kwbreak*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[3]) /*AClosureDecl::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[3]) /*AClosureDecl::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[3]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[3]) /*AClosureDecl::_n_signature*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[3]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[3]) /*AClosureDecl::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label394: while(false);
+  return_label412: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4544, LOCATE_parser_prod___AClosureDecl___empty_init};
+  struct trace_t trace = {NULL, NULL, 4575, LOCATE_parser_prod___AClosureDecl___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDecl].i]) return;
-  return_label395: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label413: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDecl].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDecl___init_aclosuredecl(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4546, LOCATE_parser_prod___AClosureDecl___init_aclosuredecl};
+  struct trace_t trace = {NULL, NULL, 4577, LOCATE_parser_prod___AClosureDecl___init_aclosuredecl};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDecl].i]) return;
-  variable[7] = variable[0];
-  CALL_parser_prod___AClosureDecl___empty_init(variable[7])(variable[7], init_table /*YYY*/) /*AClosureDecl::empty_init*/;
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[7]) /*AClosureDecl::_n_kwwith*/ =  variable[1] /*n_kwwith*/;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___AClosureDecl___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AClosureDecl::empty_init*/;
+  ATTR_parser_nodes___AClosureDecl____n_kwwith(variable[0]) /*AClosureDecl::_n_kwwith*/ =  variable[1] /*n_kwwith*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwwith*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwwith*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwwith*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwwith*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[7]) /*AClosureDecl::_n_kwbreak*/ =  variable[2] /*n_kwbreak*/;
+  ATTR_parser_nodes___AClosureDecl____n_kwbreak(variable[0]) /*AClosureDecl::_n_kwbreak*/ =  variable[2] /*n_kwbreak*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwbreak*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwbreak*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwbreak*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwbreak*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwbreak*/)( variable[2] /*n_kwbreak*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwbreak*/)( variable[2] /*n_kwbreak*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwbreak*/)( variable[2] /*n_kwbreak*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_id(variable[7]) /*AClosureDecl::_n_id*/ =  variable[3] /*n_id*/;
+  ATTR_parser_nodes___AClosureDecl____n_id(variable[0]) /*AClosureDecl::_n_id*/ =  variable[3] /*n_id*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)( variable[3] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_signature(variable[7]) /*AClosureDecl::_n_signature*/ =  variable[4] /*n_signature*/;
+  ATTR_parser_nodes___AClosureDecl____n_signature(variable[0]) /*AClosureDecl::_n_signature*/ =  variable[4] /*n_signature*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_signature*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_signature*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_signature*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_signature*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_signature*/)( variable[4] /*n_signature*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_signature*/)( variable[4] /*n_signature*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_signature*/)( variable[4] /*n_signature*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AClosureDecl____n_expr(variable[7]) /*AClosureDecl::_n_expr*/ =  variable[5] /*n_expr*/;
+  ATTR_parser_nodes___AClosureDecl____n_expr(variable[0]) /*AClosureDecl::_n_expr*/ =  variable[5] /*n_expr*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label396: while(false);
+  return_label414: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDecl].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AType___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4671, LOCATE_parser_prod___AType___n_id__eq};
+void parser_prod___AType___n_kwnullable__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 4702, LOCATE_parser_prod___AType___n_kwnullable__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AType____n_id(variable[3]) /*AType::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label397: while(false);
+  return_label415: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AType___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4699, LOCATE_parser_prod___AType___replace_child};
+void parser_prod___AType___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 4709, LOCATE_parser_prod___AType___n_id__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label416: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AType___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 4742, LOCATE_parser_prod___AType___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4701); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AType____n_id(variable[4]) /*AType::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4744); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnullable, ID_TKwnullable)) /*cast TKwnullable*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4748); nit_exit(1);}
+      ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label417;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TClassid, ID_TClassid)) /*cast TClassid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4705); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AType____n_id(variable[4]) /*AType::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4758); nit_exit(1);}
+      ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AType____n_id(variable[4]) /*AType::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label398;
+    goto return_label417;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AType____n_types(variable[4]) /*AType::_n_types*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AType____n_types(variable[7]) /*AType::_n_types*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4715); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AType____n_types(variable[7]) /*AType::_n_types*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___replace_child, LOCATE_parser_prod, 4768); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AType____n_types(variable[7]) /*AType::_n_types*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label398;
+      goto return_label417;
     }
-    continue_399: while(0);
+    continue_418: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_399: while(0);
-  return_label398: while(false);
+  break_418: while(0);
+  return_label417: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AType___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4726, LOCATE_parser_prod___AType___visit_all};
+  struct trace_t trace = {NULL, NULL, 4779, LOCATE_parser_prod___AType___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AType____n_id(variable[3]) /*AType::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AType____n_id(variable[3]) /*AType::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AType____n_types(variable[3]) /*AType::_n_types*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_401: while(0);
+    continue_420: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_401: while(0);
-  return_label400: while(false);
+  break_420: while(0);
+  return_label419: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AType___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4736, LOCATE_parser_prod___AType___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4792, LOCATE_parser_prod___AType___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AType____n_id(variable[3]) /*AType::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AType____n_id(variable[3]) /*AType::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AType____n_types(variable[4]) /*AType::_n_types*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AType____n_types(variable[4]) /*AType::_n_types*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_403: while(0);
+    continue_422: while(0);
   }
-  break_403: while(0);
-  return_label402: while(false);
+  break_422: while(0);
+  return_label421: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AType___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4679, LOCATE_parser_prod___AType___empty_init};
+  struct trace_t trace = {NULL, NULL, 4717, LOCATE_parser_prod___AType___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AType].i]) return;
-  return_label404: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label423: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AType].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AType___init_atype(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4681, LOCATE_parser_prod___AType___init_atype};
-  val_t variable[8];
-  void **closurevariable = NULL;
+void parser_prod___AType___init_atype(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 4719, LOCATE_parser_prod___AType___init_atype};
+  val_t variable[9];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AType].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AType___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AType::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AType____n_id(variable[4]) /*AType::_n_id*/ =  variable[1] /*n_id*/;
-  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[4]) /*PNode::parent=*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AType___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AType::empty_init*/;
+  ATTR_parser_nodes___AType____n_kwnullable(variable[0]) /*AType::_n_kwnullable*/ =  variable[1] /*n_kwnullable*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwnullable*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwnullable*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwnullable*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwnullable*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwnullable*/)( variable[1] /*n_kwnullable*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnullable*/)( variable[1] /*n_kwnullable*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AType____n_id(variable[0]) /*AType::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  variable[5] = NEW_List_list___List___init(); /*new List[PType]*/
-  ATTR_parser_nodes___AType____n_types(variable[4]) /*AType::_n_types*/ = variable[5];
-  variable[4] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_types*/)( variable[2] /*n_types*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PType]*/;
+  ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_types*/)( variable[3] /*n_types*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*ArrayIterator::item*/;
-    variable[6] = variable[5];
-    variable[7] = TAG_Bool(( variable[6] /*n*/==NIT_NULL) || VAL_ISA( variable[6] /*n*/, COLOR_PType, ID_PType)) /*cast PType*/;
-    if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___init_atype, LOCATE_parser_prod, 4693); nit_exit(1);}
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AType____n_types(variable[7]) /*AType::_n_types*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7],  variable[6] /*n*/) /*IndexedCollection::add*/;
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n*/)( variable[6] /*n*/, variable[7]) /*PNode::parent=*/;
-    continue_406: while(0);
-    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*ArrayIterator::next*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[6])) break; /*for*/
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
+    variable[7] = variable[6];
+    /* Register variable[8]: Result */
+    variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PType, ID_PType)) /*cast PType*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AType___init_atype, LOCATE_parser_prod, 4736); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AType____n_types(variable[0]) /*AType::_n_types*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_425: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_406: while(0);
-  return_label405: while(false);
+  break_425: while(0);
+  return_label424: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AType].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABlockExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4767, LOCATE_parser_prod___ABlockExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 4826, LOCATE_parser_prod___ABlockExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___replace_child, LOCATE_parser_prod, 4769); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[4]) /*ABlockExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___replace_child, LOCATE_parser_prod, 4828); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[7]) /*ABlockExpr::_n_expr*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___replace_child, LOCATE_parser_prod, 4773); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[7]) /*ABlockExpr::_n_expr*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___replace_child, LOCATE_parser_prod, 4832); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[7]) /*ABlockExpr::_n_expr*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label407;
+      goto return_label426;
     }
-    continue_408: while(0);
+    continue_427: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_408: while(0);
-  return_label407: while(false);
+  break_427: while(0);
+  return_label426: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABlockExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4784, LOCATE_parser_prod___ABlockExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 4843, LOCATE_parser_prod___ABlockExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[3]) /*ABlockExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_410: while(0);
+    continue_429: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_410: while(0);
-  return_label409: while(false);
+  break_429: while(0);
+  return_label428: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABlockExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4791, LOCATE_parser_prod___ABlockExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 4850, LOCATE_parser_prod___ABlockExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[4]) /*ABlockExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[4]) /*ABlockExpr::_n_expr*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_412: while(0);
+    continue_431: while(0);
   }
-  break_412: while(0);
-  return_label411: while(false);
+  break_431: while(0);
+  return_label430: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABlockExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4752, LOCATE_parser_prod___ABlockExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 4811, LOCATE_parser_prod___ABlockExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABlockExpr].i]) return;
-  return_label413: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label432: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABlockExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABlockExpr___init_ablockexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4754, LOCATE_parser_prod___ABlockExpr___init_ablockexpr};
+  struct trace_t trace = {NULL, NULL, 4813, LOCATE_parser_prod___ABlockExpr___init_ablockexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABlockExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ABlockExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ABlockExpr::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ABlockExpr____n_expr(variable[3]) /*ABlockExpr::_n_expr*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_expr*/)( variable[1] /*n_expr*/) /*AbstractArray::iterator*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ABlockExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABlockExpr::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_expr*/)( variable[1] /*n_expr*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
+    /* Register variable[6]: Result */
     variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___init_ablockexpr, LOCATE_parser_prod, 4761); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[6]) /*ABlockExpr::_n_expr*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABlockExpr___init_ablockexpr, LOCATE_parser_prod, 4820); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___ABlockExpr____n_expr(variable[0]) /*ABlockExpr::_n_expr*/;
     CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_415: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_434: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  break_415: while(0);
-  return_label414: while(false);
+  break_434: while(0);
+  return_label433: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABlockExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___n_kwvar__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4803, LOCATE_parser_prod___AVardeclExpr___n_kwvar__eq};
+  struct trace_t trace = {NULL, NULL, 4862, LOCATE_parser_prod___AVardeclExpr___n_kwvar__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[3]) /*AVardeclExpr::_n_kwvar*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label416: while(false);
+  return_label435: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4810, LOCATE_parser_prod___AVardeclExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 4869, LOCATE_parser_prod___AVardeclExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_id(variable[3]) /*AVardeclExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label417: while(false);
+  return_label436: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4817, LOCATE_parser_prod___AVardeclExpr___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 4876, LOCATE_parser_prod___AVardeclExpr___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_type(variable[3]) /*AVardeclExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label418: while(false);
+  return_label437: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4824, LOCATE_parser_prod___AVardeclExpr___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 4883, LOCATE_parser_prod___AVardeclExpr___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_assign(variable[3]) /*AVardeclExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label419: while(false);
+  return_label438: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4831, LOCATE_parser_prod___AVardeclExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 4890, LOCATE_parser_prod___AVardeclExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_expr(variable[3]) /*AVardeclExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label420: while(false);
+  return_label439: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4872, LOCATE_parser_prod___AVardeclExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 4931, LOCATE_parser_prod___AVardeclExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4874); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[4]) /*AVardeclExpr::_n_kwvar*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4933); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwvar, ID_TKwvar)) /*cast TKwvar*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4878); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[4]) /*AVardeclExpr::_n_kwvar*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4937); nit_exit(1);}
+      ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[4]) /*AVardeclExpr::_n_kwvar*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/ =  NIT_NULL /*null*/;
     }
-    goto return_label421;
+    goto return_label440;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[4]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4888); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_id(variable[4]) /*AVardeclExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4947); nit_exit(1);}
+      ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_id(variable[4]) /*AVardeclExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label421;
+    goto return_label440;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[4]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4898); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_type(variable[4]) /*AVardeclExpr::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4957); nit_exit(1);}
+      ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_type(variable[4]) /*AVardeclExpr::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label421;
+    goto return_label440;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[4]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4908); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_assign(variable[4]) /*AVardeclExpr::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4967); nit_exit(1);}
+      ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_assign(variable[4]) /*AVardeclExpr::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label421;
+    goto return_label440;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[4]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4918); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_expr(variable[4]) /*AVardeclExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVardeclExpr___replace_child, LOCATE_parser_prod, 4977); nit_exit(1);}
+      ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVardeclExpr____n_expr(variable[4]) /*AVardeclExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label421;
+    goto return_label440;
   }
-  return_label421: while(false);
+  return_label440: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4927, LOCATE_parser_prod___AVardeclExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 4986, LOCATE_parser_prod___AVardeclExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[3]) /*AVardeclExpr::_n_kwvar*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[3]) /*AVardeclExpr::_n_kwvar*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[3]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[3]) /*AVardeclExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[3]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[3]) /*AVardeclExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[3]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[3]) /*AVardeclExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[3]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[3]) /*AVardeclExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label422: while(false);
+  return_label441: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4946, LOCATE_parser_prod___AVardeclExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5005, LOCATE_parser_prod___AVardeclExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[3]) /*AVardeclExpr::_n_kwvar*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[3]) /*AVardeclExpr::_n_kwvar*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[3]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[3]) /*AVardeclExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[3]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[3]) /*AVardeclExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[3]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[3]) /*AVardeclExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[3]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[3]) /*AVardeclExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label423: while(false);
+  return_label442: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4839, LOCATE_parser_prod___AVardeclExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 4898, LOCATE_parser_prod___AVardeclExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVardeclExpr].i]) return;
-  return_label424: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label443: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVardeclExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVardeclExpr___init_avardeclexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4841, LOCATE_parser_prod___AVardeclExpr___init_avardeclexpr};
+  struct trace_t trace = {NULL, NULL, 4900, LOCATE_parser_prod___AVardeclExpr___init_avardeclexpr};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVardeclExpr].i]) return;
-  variable[7] = variable[0];
-  CALL_parser_prod___AVardeclExpr___empty_init(variable[7])(variable[7], init_table /*YYY*/) /*AVardeclExpr::empty_init*/;
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[7]) /*AVardeclExpr::_n_kwvar*/ =  variable[1] /*n_kwvar*/;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___AVardeclExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AVardeclExpr::empty_init*/;
+  ATTR_parser_nodes___AVardeclExpr____n_kwvar(variable[0]) /*AVardeclExpr::_n_kwvar*/ =  variable[1] /*n_kwvar*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwvar*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwvar*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwvar*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwvar*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwvar*/)( variable[1] /*n_kwvar*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwvar*/)( variable[1] /*n_kwvar*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwvar*/)( variable[1] /*n_kwvar*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_id(variable[7]) /*AVardeclExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___AVardeclExpr____n_id(variable[0]) /*AVardeclExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_type(variable[7]) /*AVardeclExpr::_n_type*/ =  variable[3] /*n_type*/;
+  ATTR_parser_nodes___AVardeclExpr____n_type(variable[0]) /*AVardeclExpr::_n_type*/ =  variable[3] /*n_type*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)( variable[3] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_type*/)( variable[3] /*n_type*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_type*/)( variable[3] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_assign(variable[7]) /*AVardeclExpr::_n_assign*/ =  variable[4] /*n_assign*/;
+  ATTR_parser_nodes___AVardeclExpr____n_assign(variable[0]) /*AVardeclExpr::_n_assign*/ =  variable[4] /*n_assign*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AVardeclExpr____n_expr(variable[7]) /*AVardeclExpr::_n_expr*/ =  variable[5] /*n_expr*/;
+  ATTR_parser_nodes___AVardeclExpr____n_expr(variable[0]) /*AVardeclExpr::_n_expr*/ =  variable[5] /*n_expr*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_expr*/)( variable[5] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label425: while(false);
+  return_label444: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVardeclExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___n_kwreturn__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4966, LOCATE_parser_prod___AReturnExpr___n_kwreturn__eq};
+  struct trace_t trace = {NULL, NULL, 5025, LOCATE_parser_prod___AReturnExpr___n_kwreturn__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[3]) /*AReturnExpr::_n_kwreturn*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label426: while(false);
+  return_label445: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 4973, LOCATE_parser_prod___AReturnExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5032, LOCATE_parser_prod___AReturnExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReturnExpr____n_expr(variable[3]) /*AReturnExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label427: while(false);
+  return_label446: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 4999, LOCATE_parser_prod___AReturnExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5058, LOCATE_parser_prod___AReturnExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5001); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[4]) /*AReturnExpr::_n_kwreturn*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5060); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwreturn, ID_TKwreturn)) /*cast TKwreturn*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5005); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[4]) /*AReturnExpr::_n_kwreturn*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5064); nit_exit(1);}
+      ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[4]) /*AReturnExpr::_n_kwreturn*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/ =  NIT_NULL /*null*/;
     }
-    goto return_label428;
+    goto return_label447;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[4]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5015); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReturnExpr____n_expr(variable[4]) /*AReturnExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AReturnExpr___replace_child, LOCATE_parser_prod, 5074); nit_exit(1);}
+      ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReturnExpr____n_expr(variable[4]) /*AReturnExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label428;
+    goto return_label447;
   }
-  return_label428: while(false);
+  return_label447: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5024, LOCATE_parser_prod___AReturnExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5083, LOCATE_parser_prod___AReturnExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[3]) /*AReturnExpr::_n_kwreturn*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[3]) /*AReturnExpr::_n_kwreturn*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[3]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[3]) /*AReturnExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label429: while(false);
+  return_label448: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5034, LOCATE_parser_prod___AReturnExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5093, LOCATE_parser_prod___AReturnExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[3]) /*AReturnExpr::_n_kwreturn*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[3]) /*AReturnExpr::_n_kwreturn*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[3]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[3]) /*AReturnExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label430: while(false);
+  return_label449: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4981, LOCATE_parser_prod___AReturnExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5040, LOCATE_parser_prod___AReturnExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReturnExpr].i]) return;
-  return_label431: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label450: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReturnExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AReturnExpr___init_areturnexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 4983, LOCATE_parser_prod___AReturnExpr___init_areturnexpr};
+  struct trace_t trace = {NULL, NULL, 5042, LOCATE_parser_prod___AReturnExpr___init_areturnexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReturnExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AReturnExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AReturnExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[4]) /*AReturnExpr::_n_kwreturn*/ =  variable[1] /*n_kwreturn*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AReturnExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AReturnExpr::empty_init*/;
+  ATTR_parser_nodes___AReturnExpr____n_kwreturn(variable[0]) /*AReturnExpr::_n_kwreturn*/ =  variable[1] /*n_kwreturn*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwreturn*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwreturn*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwreturn*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwreturn*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwreturn*/)( variable[1] /*n_kwreturn*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwreturn*/)( variable[1] /*n_kwreturn*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwreturn*/)( variable[1] /*n_kwreturn*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AReturnExpr____n_expr(variable[4]) /*AReturnExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AReturnExpr____n_expr(variable[0]) /*AReturnExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label432: while(false);
+  return_label451: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AReturnExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___n_kwbreak__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5045, LOCATE_parser_prod___ABreakExpr___n_kwbreak__eq};
+  struct trace_t trace = {NULL, NULL, 5104, LOCATE_parser_prod___ABreakExpr___n_kwbreak__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[3]) /*ABreakExpr::_n_kwbreak*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label433: while(false);
+  return_label452: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5052, LOCATE_parser_prod___ABreakExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5111, LOCATE_parser_prod___ABreakExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABreakExpr____n_expr(variable[3]) /*ABreakExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label434: while(false);
+  return_label453: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5078, LOCATE_parser_prod___ABreakExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5137, LOCATE_parser_prod___ABreakExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5080); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[4]) /*ABreakExpr::_n_kwbreak*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5139); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwbreak, ID_TKwbreak)) /*cast TKwbreak*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5084); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[4]) /*ABreakExpr::_n_kwbreak*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5143); nit_exit(1);}
+      ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[4]) /*ABreakExpr::_n_kwbreak*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/ =  NIT_NULL /*null*/;
     }
-    goto return_label435;
+    goto return_label454;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[4]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5094); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABreakExpr____n_expr(variable[4]) /*ABreakExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABreakExpr___replace_child, LOCATE_parser_prod, 5153); nit_exit(1);}
+      ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABreakExpr____n_expr(variable[4]) /*ABreakExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label435;
+    goto return_label454;
   }
-  return_label435: while(false);
+  return_label454: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5103, LOCATE_parser_prod___ABreakExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5162, LOCATE_parser_prod___ABreakExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[3]) /*ABreakExpr::_n_kwbreak*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[3]) /*ABreakExpr::_n_kwbreak*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[3]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[3]) /*ABreakExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label436: while(false);
+  return_label455: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5113, LOCATE_parser_prod___ABreakExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5172, LOCATE_parser_prod___ABreakExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[3]) /*ABreakExpr::_n_kwbreak*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[3]) /*ABreakExpr::_n_kwbreak*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[3]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[3]) /*ABreakExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label437: while(false);
+  return_label456: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5060, LOCATE_parser_prod___ABreakExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5119, LOCATE_parser_prod___ABreakExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABreakExpr].i]) return;
-  return_label438: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label457: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABreakExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABreakExpr___init_abreakexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5062, LOCATE_parser_prod___ABreakExpr___init_abreakexpr};
+  struct trace_t trace = {NULL, NULL, 5121, LOCATE_parser_prod___ABreakExpr___init_abreakexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABreakExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ABreakExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ABreakExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[4]) /*ABreakExpr::_n_kwbreak*/ =  variable[1] /*n_kwbreak*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ABreakExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABreakExpr::empty_init*/;
+  ATTR_parser_nodes___ABreakExpr____n_kwbreak(variable[0]) /*ABreakExpr::_n_kwbreak*/ =  variable[1] /*n_kwbreak*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwbreak*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwbreak*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwbreak*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwbreak*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwbreak*/)( variable[1] /*n_kwbreak*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwbreak*/)( variable[1] /*n_kwbreak*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwbreak*/)( variable[1] /*n_kwbreak*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABreakExpr____n_expr(variable[4]) /*ABreakExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___ABreakExpr____n_expr(variable[0]) /*ABreakExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label439: while(false);
+  return_label458: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABreakExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___n_kwabort__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5124, LOCATE_parser_prod___AAbortExpr___n_kwabort__eq};
+  struct trace_t trace = {NULL, NULL, 5183, LOCATE_parser_prod___AAbortExpr___n_kwabort__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label440: while(false);
+  return_label459: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5145, LOCATE_parser_prod___AAbortExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5204, LOCATE_parser_prod___AAbortExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbortExpr___replace_child, LOCATE_parser_prod, 5147); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[4]) /*AAbortExpr::_n_kwabort*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbortExpr___replace_child, LOCATE_parser_prod, 5206); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwabort, ID_TKwabort)) /*cast TKwabort*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbortExpr___replace_child, LOCATE_parser_prod, 5151); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[4]) /*AAbortExpr::_n_kwabort*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAbortExpr___replace_child, LOCATE_parser_prod, 5210); nit_exit(1);}
+      ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[4]) /*AAbortExpr::_n_kwabort*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/ =  NIT_NULL /*null*/;
     }
-    goto return_label441;
+    goto return_label460;
   }
-  return_label441: while(false);
+  return_label460: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5160, LOCATE_parser_prod___AAbortExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5219, LOCATE_parser_prod___AAbortExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label442: while(false);
+  return_label461: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5167, LOCATE_parser_prod___AAbortExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5226, LOCATE_parser_prod___AAbortExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label443: while(false);
+  return_label462: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5132, LOCATE_parser_prod___AAbortExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5191, LOCATE_parser_prod___AAbortExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbortExpr].i]) return;
-  return_label444: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label463: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbortExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAbortExpr___init_aabortexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5134, LOCATE_parser_prod___AAbortExpr___init_aabortexpr};
+  struct trace_t trace = {NULL, NULL, 5193, LOCATE_parser_prod___AAbortExpr___init_aabortexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbortExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AAbortExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AAbortExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[3]) /*AAbortExpr::_n_kwabort*/ =  variable[1] /*n_kwabort*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AAbortExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAbortExpr::empty_init*/;
+  ATTR_parser_nodes___AAbortExpr____n_kwabort(variable[0]) /*AAbortExpr::_n_kwabort*/ =  variable[1] /*n_kwabort*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwabort*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwabort*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwabort*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwabort*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwabort*/)( variable[1] /*n_kwabort*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwabort*/)( variable[1] /*n_kwabort*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwabort*/)( variable[1] /*n_kwabort*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label445: while(false);
+  return_label464: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAbortExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___n_kwcontinue__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5175, LOCATE_parser_prod___AContinueExpr___n_kwcontinue__eq};
+  struct trace_t trace = {NULL, NULL, 5234, LOCATE_parser_prod___AContinueExpr___n_kwcontinue__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[3]) /*AContinueExpr::_n_kwcontinue*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label446: while(false);
+  return_label465: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5182, LOCATE_parser_prod___AContinueExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5241, LOCATE_parser_prod___AContinueExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AContinueExpr____n_expr(variable[3]) /*AContinueExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label447: while(false);
+  return_label466: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5208, LOCATE_parser_prod___AContinueExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5267, LOCATE_parser_prod___AContinueExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5210); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[4]) /*AContinueExpr::_n_kwcontinue*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5269); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwcontinue, ID_TKwcontinue)) /*cast TKwcontinue*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5214); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[4]) /*AContinueExpr::_n_kwcontinue*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5273); nit_exit(1);}
+      ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[4]) /*AContinueExpr::_n_kwcontinue*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/ =  NIT_NULL /*null*/;
     }
-    goto return_label448;
+    goto return_label467;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[4]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5224); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AContinueExpr____n_expr(variable[4]) /*AContinueExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AContinueExpr___replace_child, LOCATE_parser_prod, 5283); nit_exit(1);}
+      ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AContinueExpr____n_expr(variable[4]) /*AContinueExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label448;
+    goto return_label467;
   }
-  return_label448: while(false);
+  return_label467: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5233, LOCATE_parser_prod___AContinueExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5292, LOCATE_parser_prod___AContinueExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[3]) /*AContinueExpr::_n_kwcontinue*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[3]) /*AContinueExpr::_n_kwcontinue*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[3]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[3]) /*AContinueExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label449: while(false);
+  return_label468: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5243, LOCATE_parser_prod___AContinueExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5302, LOCATE_parser_prod___AContinueExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[3]) /*AContinueExpr::_n_kwcontinue*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[3]) /*AContinueExpr::_n_kwcontinue*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[3]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[3]) /*AContinueExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label450: while(false);
+  return_label469: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5190, LOCATE_parser_prod___AContinueExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5249, LOCATE_parser_prod___AContinueExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AContinueExpr].i]) return;
-  return_label451: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label470: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AContinueExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AContinueExpr___init_acontinueexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5192, LOCATE_parser_prod___AContinueExpr___init_acontinueexpr};
+  struct trace_t trace = {NULL, NULL, 5251, LOCATE_parser_prod___AContinueExpr___init_acontinueexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AContinueExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AContinueExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AContinueExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[4]) /*AContinueExpr::_n_kwcontinue*/ =  variable[1] /*n_kwcontinue*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AContinueExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AContinueExpr::empty_init*/;
+  ATTR_parser_nodes___AContinueExpr____n_kwcontinue(variable[0]) /*AContinueExpr::_n_kwcontinue*/ =  variable[1] /*n_kwcontinue*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwcontinue*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwcontinue*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwcontinue*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwcontinue*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwcontinue*/)( variable[1] /*n_kwcontinue*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwcontinue*/)( variable[1] /*n_kwcontinue*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwcontinue*/)( variable[1] /*n_kwcontinue*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AContinueExpr____n_expr(variable[4]) /*AContinueExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AContinueExpr____n_expr(variable[0]) /*AContinueExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label452: while(false);
+  return_label471: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AContinueExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___n_kwdo__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5254, LOCATE_parser_prod___ADoExpr___n_kwdo__eq};
+  struct trace_t trace = {NULL, NULL, 5313, LOCATE_parser_prod___ADoExpr___n_kwdo__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ADoExpr____n_kwdo(variable[3]) /*ADoExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label453: while(false);
+  return_label472: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5261, LOCATE_parser_prod___ADoExpr___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 5320, LOCATE_parser_prod___ADoExpr___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ADoExpr____n_block(variable[3]) /*ADoExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label454: while(false);
+  return_label473: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5287, LOCATE_parser_prod___ADoExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5346, LOCATE_parser_prod___ADoExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5289); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[4]) /*ADoExpr::_n_kwdo*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5348); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwdo, ID_TKwdo)) /*cast TKwdo*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5293); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADoExpr____n_kwdo(variable[4]) /*ADoExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5352); nit_exit(1);}
+      ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADoExpr____n_kwdo(variable[4]) /*ADoExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
     }
-    goto return_label455;
+    goto return_label474;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ADoExpr____n_block(variable[4]) /*ADoExpr::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5303); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADoExpr____n_block(variable[4]) /*ADoExpr::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoExpr___replace_child, LOCATE_parser_prod, 5362); nit_exit(1);}
+      ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ADoExpr____n_block(variable[4]) /*ADoExpr::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label455;
+    goto return_label474;
   }
-  return_label455: while(false);
+  return_label474: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5312, LOCATE_parser_prod___ADoExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5371, LOCATE_parser_prod___ADoExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[3]) /*ADoExpr::_n_kwdo*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[3]) /*ADoExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[3]) /*ADoExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[3]) /*ADoExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label456: while(false);
+  return_label475: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5322, LOCATE_parser_prod___ADoExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5381, LOCATE_parser_prod___ADoExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[3]) /*ADoExpr::_n_kwdo*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[3]) /*ADoExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[3]) /*ADoExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[3]) /*ADoExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label457: while(false);
+  return_label476: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5269, LOCATE_parser_prod___ADoExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5328, LOCATE_parser_prod___ADoExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoExpr].i]) return;
-  return_label458: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label477: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoExpr___init_adoexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5271, LOCATE_parser_prod___ADoExpr___init_adoexpr};
+  struct trace_t trace = {NULL, NULL, 5330, LOCATE_parser_prod___ADoExpr___init_adoexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ADoExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ADoExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ADoExpr____n_kwdo(variable[4]) /*ADoExpr::_n_kwdo*/ =  variable[1] /*n_kwdo*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ADoExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ADoExpr::empty_init*/;
+  ATTR_parser_nodes___ADoExpr____n_kwdo(variable[0]) /*ADoExpr::_n_kwdo*/ =  variable[1] /*n_kwdo*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwdo*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwdo*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwdo*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwdo*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwdo*/)( variable[1] /*n_kwdo*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwdo*/)( variable[1] /*n_kwdo*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwdo*/)( variable[1] /*n_kwdo*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ADoExpr____n_block(variable[4]) /*ADoExpr::_n_block*/ =  variable[2] /*n_block*/;
+  ATTR_parser_nodes___ADoExpr____n_block(variable[0]) /*ADoExpr::_n_block*/ =  variable[2] /*n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_block*/)( variable[2] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_block*/)( variable[2] /*n_block*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_block*/)( variable[2] /*n_block*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label459: while(false);
+  return_label478: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___n_kwif__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5333, LOCATE_parser_prod___AIfExpr___n_kwif__eq};
+  struct trace_t trace = {NULL, NULL, 5392, LOCATE_parser_prod___AIfExpr___n_kwif__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_kwif(variable[3]) /*AIfExpr::_n_kwif*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label460: while(false);
+  return_label479: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5340, LOCATE_parser_prod___AIfExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5399, LOCATE_parser_prod___AIfExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_expr(variable[3]) /*AIfExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label461: while(false);
+  return_label480: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___n_then__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5347, LOCATE_parser_prod___AIfExpr___n_then__eq};
+  struct trace_t trace = {NULL, NULL, 5406, LOCATE_parser_prod___AIfExpr___n_then__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_then(variable[3]) /*AIfExpr::_n_then*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label462: while(false);
+  return_label481: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___n_else__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5354, LOCATE_parser_prod___AIfExpr___n_else__eq};
+  struct trace_t trace = {NULL, NULL, 5413, LOCATE_parser_prod___AIfExpr___n_else__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_else(variable[3]) /*AIfExpr::_n_else*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label463: while(false);
+  return_label482: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5390, LOCATE_parser_prod___AIfExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5449, LOCATE_parser_prod___AIfExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5392); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[4]) /*AIfExpr::_n_kwif*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5451); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwif, ID_TKwif)) /*cast TKwif*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5396); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_kwif(variable[4]) /*AIfExpr::_n_kwif*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5455); nit_exit(1);}
+      ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_kwif(variable[4]) /*AIfExpr::_n_kwif*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/ =  NIT_NULL /*null*/;
     }
-    goto return_label464;
+    goto return_label483;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfExpr____n_expr(variable[4]) /*AIfExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5406); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_expr(variable[4]) /*AIfExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5465); nit_exit(1);}
+      ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_expr(variable[4]) /*AIfExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label464;
+    goto return_label483;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfExpr____n_then(variable[4]) /*AIfExpr::_n_then*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5416); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_then(variable[4]) /*AIfExpr::_n_then*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5475); nit_exit(1);}
+      ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_then(variable[4]) /*AIfExpr::_n_then*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/ =  NIT_NULL /*null*/;
     }
-    goto return_label464;
+    goto return_label483;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfExpr____n_else(variable[4]) /*AIfExpr::_n_else*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5426); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_else(variable[4]) /*AIfExpr::_n_else*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfExpr___replace_child, LOCATE_parser_prod, 5485); nit_exit(1);}
+      ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfExpr____n_else(variable[4]) /*AIfExpr::_n_else*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/ =  NIT_NULL /*null*/;
     }
-    goto return_label464;
+    goto return_label483;
   }
-  return_label464: while(false);
+  return_label483: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5435, LOCATE_parser_prod___AIfExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5494, LOCATE_parser_prod___AIfExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[3]) /*AIfExpr::_n_kwif*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[3]) /*AIfExpr::_n_kwif*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[3]) /*AIfExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[3]) /*AIfExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[3]) /*AIfExpr::_n_then*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[3]) /*AIfExpr::_n_then*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[3]) /*AIfExpr::_n_else*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[3]) /*AIfExpr::_n_else*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label465: while(false);
+  return_label484: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5451, LOCATE_parser_prod___AIfExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5510, LOCATE_parser_prod___AIfExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[3]) /*AIfExpr::_n_kwif*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[3]) /*AIfExpr::_n_kwif*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[3]) /*AIfExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[3]) /*AIfExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[3]) /*AIfExpr::_n_then*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[3]) /*AIfExpr::_n_then*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[3]) /*AIfExpr::_n_else*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[3]) /*AIfExpr::_n_else*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label466: while(false);
+  return_label485: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5362, LOCATE_parser_prod___AIfExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5421, LOCATE_parser_prod___AIfExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfExpr].i]) return;
-  return_label467: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label486: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfExpr___init_aifexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5364, LOCATE_parser_prod___AIfExpr___init_aifexpr};
+  struct trace_t trace = {NULL, NULL, 5423, LOCATE_parser_prod___AIfExpr___init_aifexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___AIfExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*AIfExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_kwif(variable[6]) /*AIfExpr::_n_kwif*/ =  variable[1] /*n_kwif*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AIfExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIfExpr::empty_init*/;
+  ATTR_parser_nodes___AIfExpr____n_kwif(variable[0]) /*AIfExpr::_n_kwif*/ =  variable[1] /*n_kwif*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwif*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwif*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwif*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwif*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_expr(variable[6]) /*AIfExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AIfExpr____n_expr(variable[0]) /*AIfExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_then(variable[6]) /*AIfExpr::_n_then*/ =  variable[3] /*n_then*/;
+  ATTR_parser_nodes___AIfExpr____n_then(variable[0]) /*AIfExpr::_n_then*/ =  variable[3] /*n_then*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_then*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_then*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_then*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_then*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_then*/)( variable[3] /*n_then*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_then*/)( variable[3] /*n_then*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_then*/)( variable[3] /*n_then*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AIfExpr____n_else(variable[6]) /*AIfExpr::_n_else*/ =  variable[4] /*n_else*/;
+  ATTR_parser_nodes___AIfExpr____n_else(variable[0]) /*AIfExpr::_n_else*/ =  variable[4] /*n_else*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_else*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_else*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_else*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_else*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_else*/)( variable[4] /*n_else*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_else*/)( variable[4] /*n_else*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_else*/)( variable[4] /*n_else*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label468: while(false);
+  return_label487: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_kwif__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5468, LOCATE_parser_prod___AIfexprExpr___n_kwif__eq};
+  struct trace_t trace = {NULL, NULL, 5527, LOCATE_parser_prod___AIfexprExpr___n_kwif__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[3]) /*AIfexprExpr::_n_kwif*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label469: while(false);
+  return_label488: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5475, LOCATE_parser_prod___AIfexprExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5534, LOCATE_parser_prod___AIfexprExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_expr(variable[3]) /*AIfexprExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label470: while(false);
+  return_label489: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_kwthen__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5482, LOCATE_parser_prod___AIfexprExpr___n_kwthen__eq};
+  struct trace_t trace = {NULL, NULL, 5541, LOCATE_parser_prod___AIfexprExpr___n_kwthen__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[3]) /*AIfexprExpr::_n_kwthen*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label471: while(false);
+  return_label490: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_then__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5489, LOCATE_parser_prod___AIfexprExpr___n_then__eq};
+  struct trace_t trace = {NULL, NULL, 5548, LOCATE_parser_prod___AIfexprExpr___n_then__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_then(variable[3]) /*AIfexprExpr::_n_then*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label472: while(false);
+  return_label491: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_kwelse__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5496, LOCATE_parser_prod___AIfexprExpr___n_kwelse__eq};
+  struct trace_t trace = {NULL, NULL, 5555, LOCATE_parser_prod___AIfexprExpr___n_kwelse__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[3]) /*AIfexprExpr::_n_kwelse*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label473: while(false);
+  return_label492: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___n_else__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5503, LOCATE_parser_prod___AIfexprExpr___n_else__eq};
+  struct trace_t trace = {NULL, NULL, 5562, LOCATE_parser_prod___AIfexprExpr___n_else__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_else(variable[3]) /*AIfexprExpr::_n_else*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label474: while(false);
+  return_label493: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5549, LOCATE_parser_prod___AIfexprExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5608, LOCATE_parser_prod___AIfexprExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5551); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[4]) /*AIfexprExpr::_n_kwif*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5610); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwif, ID_TKwif)) /*cast TKwif*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5555); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[4]) /*AIfexprExpr::_n_kwif*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5614); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[4]) /*AIfexprExpr::_n_kwif*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[4]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5565); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_expr(variable[4]) /*AIfexprExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5624); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_expr(variable[4]) /*AIfexprExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[4]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwthen, ID_TKwthen)) /*cast TKwthen*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5575); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[4]) /*AIfexprExpr::_n_kwthen*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5634); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[4]) /*AIfexprExpr::_n_kwthen*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[4]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5585); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_then(variable[4]) /*AIfexprExpr::_n_then*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5644); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_then(variable[4]) /*AIfexprExpr::_n_then*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[4]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwelse, ID_TKwelse)) /*cast TKwelse*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5595); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[4]) /*AIfexprExpr::_n_kwelse*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5654); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[4]) /*AIfexprExpr::_n_kwelse*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[4]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5605); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_else(variable[4]) /*AIfexprExpr::_n_else*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIfexprExpr___replace_child, LOCATE_parser_prod, 5664); nit_exit(1);}
+      ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIfexprExpr____n_else(variable[4]) /*AIfexprExpr::_n_else*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/ =  NIT_NULL /*null*/;
     }
-    goto return_label475;
+    goto return_label494;
   }
-  return_label475: while(false);
+  return_label494: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5614, LOCATE_parser_prod___AIfexprExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5673, LOCATE_parser_prod___AIfexprExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[3]) /*AIfexprExpr::_n_kwif*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[3]) /*AIfexprExpr::_n_kwif*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[3]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[3]) /*AIfexprExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[3]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[3]) /*AIfexprExpr::_n_kwthen*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[3]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[3]) /*AIfexprExpr::_n_then*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[3]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[3]) /*AIfexprExpr::_n_kwelse*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[3]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[3]) /*AIfexprExpr::_n_else*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label476: while(false);
+  return_label495: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5636, LOCATE_parser_prod___AIfexprExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5695, LOCATE_parser_prod___AIfexprExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[3]) /*AIfexprExpr::_n_kwif*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[3]) /*AIfexprExpr::_n_kwif*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[3]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[3]) /*AIfexprExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[3]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[3]) /*AIfexprExpr::_n_kwthen*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[3]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[3]) /*AIfexprExpr::_n_then*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[3]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[3]) /*AIfexprExpr::_n_kwelse*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[3]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[3]) /*AIfexprExpr::_n_else*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label477: while(false);
+  return_label496: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5511, LOCATE_parser_prod___AIfexprExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5570, LOCATE_parser_prod___AIfexprExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfexprExpr].i]) return;
-  return_label478: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label497: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfexprExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIfexprExpr___init_aifexprexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, val_t  param5, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5513, LOCATE_parser_prod___AIfexprExpr___init_aifexprexpr};
+  struct trace_t trace = {NULL, NULL, 5572, LOCATE_parser_prod___AIfexprExpr___init_aifexprexpr};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
+  /* Register variable[6]: Local variable */
   variable[6] =  param5;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfexprExpr].i]) return;
-  variable[8] = variable[0];
-  CALL_parser_prod___AIfexprExpr___empty_init(variable[8])(variable[8], init_table /*YYY*/) /*AIfexprExpr::empty_init*/;
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[8]) /*AIfexprExpr::_n_kwif*/ =  variable[1] /*n_kwif*/;
+  /* Register variable[7]: Method return value and escape marker */
+  CALL_parser_prod___AIfexprExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIfexprExpr::empty_init*/;
+  ATTR_parser_nodes___AIfexprExpr____n_kwif(variable[0]) /*AIfexprExpr::_n_kwif*/ =  variable[1] /*n_kwif*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwif*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwif*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwif*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwif*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwif*/)( variable[1] /*n_kwif*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_expr(variable[8]) /*AIfexprExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AIfexprExpr____n_expr(variable[0]) /*AIfexprExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[8]) /*AIfexprExpr::_n_kwthen*/ =  variable[3] /*n_kwthen*/;
+  ATTR_parser_nodes___AIfexprExpr____n_kwthen(variable[0]) /*AIfexprExpr::_n_kwthen*/ =  variable[3] /*n_kwthen*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_kwthen*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_kwthen*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_kwthen*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_kwthen*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_kwthen*/)( variable[3] /*n_kwthen*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwthen*/)( variable[3] /*n_kwthen*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwthen*/)( variable[3] /*n_kwthen*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_then(variable[8]) /*AIfexprExpr::_n_then*/ =  variable[4] /*n_then*/;
+  ATTR_parser_nodes___AIfexprExpr____n_then(variable[0]) /*AIfexprExpr::_n_then*/ =  variable[4] /*n_then*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_then*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_then*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_then*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_then*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_then*/)( variable[4] /*n_then*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_then*/)( variable[4] /*n_then*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_then*/)( variable[4] /*n_then*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[8]) /*AIfexprExpr::_n_kwelse*/ =  variable[5] /*n_kwelse*/;
+  ATTR_parser_nodes___AIfexprExpr____n_kwelse(variable[0]) /*AIfexprExpr::_n_kwelse*/ =  variable[5] /*n_kwelse*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_kwelse*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_kwelse*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_kwelse*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_kwelse*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_kwelse*/)( variable[5] /*n_kwelse*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_kwelse*/)( variable[5] /*n_kwelse*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_kwelse*/)( variable[5] /*n_kwelse*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[8] = variable[0];
-  ATTR_parser_nodes___AIfexprExpr____n_else(variable[8]) /*AIfexprExpr::_n_else*/ =  variable[6] /*n_else*/;
+  ATTR_parser_nodes___AIfexprExpr____n_else(variable[0]) /*AIfexprExpr::_n_else*/ =  variable[6] /*n_else*/;
+  /* Register variable[8]: Result */
   variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[6] /*n_else*/ ==  NIT_NULL /*null*/) || (( variable[6] /*n_else*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*n_else*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*n_else*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*n_else*/)( variable[6] /*n_else*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[8])) { /*if*/
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_else*/)( variable[6] /*n_else*/, variable[8]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n_else*/)( variable[6] /*n_else*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label479: while(false);
+  return_label498: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIfexprExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___n_kwwhile__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5659, LOCATE_parser_prod___AWhileExpr___n_kwwhile__eq};
+  struct trace_t trace = {NULL, NULL, 5718, LOCATE_parser_prod___AWhileExpr___n_kwwhile__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[3]) /*AWhileExpr::_n_kwwhile*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label480: while(false);
+  return_label499: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5666, LOCATE_parser_prod___AWhileExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 5725, LOCATE_parser_prod___AWhileExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_expr(variable[3]) /*AWhileExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label481: while(false);
+  return_label500: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___n_kwdo__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5673, LOCATE_parser_prod___AWhileExpr___n_kwdo__eq};
+  struct trace_t trace = {NULL, NULL, 5732, LOCATE_parser_prod___AWhileExpr___n_kwdo__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[3]) /*AWhileExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label482: while(false);
+  return_label501: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5680, LOCATE_parser_prod___AWhileExpr___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 5739, LOCATE_parser_prod___AWhileExpr___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_block(variable[3]) /*AWhileExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label483: while(false);
+  return_label502: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5716, LOCATE_parser_prod___AWhileExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5775, LOCATE_parser_prod___AWhileExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5718); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[4]) /*AWhileExpr::_n_kwwhile*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5777); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwwhile, ID_TKwwhile)) /*cast TKwwhile*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5722); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[4]) /*AWhileExpr::_n_kwwhile*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5781); nit_exit(1);}
+      ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[4]) /*AWhileExpr::_n_kwwhile*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/ =  NIT_NULL /*null*/;
     }
-    goto return_label484;
+    goto return_label503;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[4]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5732); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_expr(variable[4]) /*AWhileExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5791); nit_exit(1);}
+      ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_expr(variable[4]) /*AWhileExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label484;
+    goto return_label503;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[4]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwdo, ID_TKwdo)) /*cast TKwdo*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5742); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[4]) /*AWhileExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5801); nit_exit(1);}
+      ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[4]) /*AWhileExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
     }
-    goto return_label484;
+    goto return_label503;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AWhileExpr____n_block(variable[4]) /*AWhileExpr::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5752); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_block(variable[4]) /*AWhileExpr::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AWhileExpr___replace_child, LOCATE_parser_prod, 5811); nit_exit(1);}
+      ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AWhileExpr____n_block(variable[4]) /*AWhileExpr::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label484;
+    goto return_label503;
   }
-  return_label484: while(false);
+  return_label503: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5761, LOCATE_parser_prod___AWhileExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5820, LOCATE_parser_prod___AWhileExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[3]) /*AWhileExpr::_n_kwwhile*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[3]) /*AWhileExpr::_n_kwwhile*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[3]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[3]) /*AWhileExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[3]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[3]) /*AWhileExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[3]) /*AWhileExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[3]) /*AWhileExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label485: while(false);
+  return_label504: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5777, LOCATE_parser_prod___AWhileExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 5836, LOCATE_parser_prod___AWhileExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[3]) /*AWhileExpr::_n_kwwhile*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[3]) /*AWhileExpr::_n_kwwhile*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[3]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[3]) /*AWhileExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[3]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[3]) /*AWhileExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[3]) /*AWhileExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[3]) /*AWhileExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label486: while(false);
+  return_label505: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5688, LOCATE_parser_prod___AWhileExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 5747, LOCATE_parser_prod___AWhileExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWhileExpr].i]) return;
-  return_label487: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label506: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWhileExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AWhileExpr___init_awhileexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5690, LOCATE_parser_prod___AWhileExpr___init_awhileexpr};
+  struct trace_t trace = {NULL, NULL, 5749, LOCATE_parser_prod___AWhileExpr___init_awhileexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWhileExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___AWhileExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*AWhileExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[6]) /*AWhileExpr::_n_kwwhile*/ =  variable[1] /*n_kwwhile*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AWhileExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AWhileExpr::empty_init*/;
+  ATTR_parser_nodes___AWhileExpr____n_kwwhile(variable[0]) /*AWhileExpr::_n_kwwhile*/ =  variable[1] /*n_kwwhile*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwwhile*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwwhile*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwwhile*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwwhile*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwwhile*/)( variable[1] /*n_kwwhile*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwhile*/)( variable[1] /*n_kwwhile*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwhile*/)( variable[1] /*n_kwwhile*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_expr(variable[6]) /*AWhileExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AWhileExpr____n_expr(variable[0]) /*AWhileExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[6]) /*AWhileExpr::_n_kwdo*/ =  variable[3] /*n_kwdo*/;
+  ATTR_parser_nodes___AWhileExpr____n_kwdo(variable[0]) /*AWhileExpr::_n_kwdo*/ =  variable[3] /*n_kwdo*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_kwdo*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_kwdo*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_kwdo*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_kwdo*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AWhileExpr____n_block(variable[6]) /*AWhileExpr::_n_block*/ =  variable[4] /*n_block*/;
+  ATTR_parser_nodes___AWhileExpr____n_block(variable[0]) /*AWhileExpr::_n_block*/ =  variable[4] /*n_block*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_block*/)( variable[4] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_block*/)( variable[4] /*n_block*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_block*/)( variable[4] /*n_block*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label488: while(false);
+  return_label507: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AWhileExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AForExpr___n_vardecl__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5794, LOCATE_parser_prod___AForExpr___n_vardecl__eq};
+void parser_prod___AForExpr___n_kwfor__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 5853, LOCATE_parser_prod___AForExpr___n_kwfor__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_vardecl(variable[3]) /*AForExpr::_n_vardecl*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label489: while(false);
+  return_label508: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AForExpr___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 5860, LOCATE_parser_prod___AForExpr___n_id__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label509: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AForExpr___n_expr__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 5867, LOCATE_parser_prod___AForExpr___n_expr__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label510: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AForExpr___n_kwdo__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5801, LOCATE_parser_prod___AForExpr___n_kwdo__eq};
+  struct trace_t trace = {NULL, NULL, 5874, LOCATE_parser_prod___AForExpr___n_kwdo__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_kwdo(variable[3]) /*AForExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label490: while(false);
+  return_label511: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AForExpr___n_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5808, LOCATE_parser_prod___AForExpr___n_block__eq};
+  struct trace_t trace = {NULL, NULL, 5881, LOCATE_parser_prod___AForExpr___n_block__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_block(variable[3]) /*AForExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label491: while(false);
+  return_label512: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AForExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5839, LOCATE_parser_prod___AForExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 5922, LOCATE_parser_prod___AForExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5841); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForExpr____n_vardecl(variable[4]) /*AForExpr::_n_vardecl*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5924); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwfor, ID_TKwfor)) /*cast TKwfor*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5928); nit_exit(1);}
+      ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label513;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5938); nit_exit(1);}
+      ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label513;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5845); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_vardecl(variable[4]) /*AForExpr::_n_vardecl*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5948); nit_exit(1);}
+      ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_vardecl(variable[4]) /*AForExpr::_n_vardecl*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label492;
+    goto return_label513;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[4]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwdo, ID_TKwdo)) /*cast TKwdo*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5855); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_kwdo(variable[4]) /*AForExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5958); nit_exit(1);}
+      ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_kwdo(variable[4]) /*AForExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/ =  NIT_NULL /*null*/;
     }
-    goto return_label492;
+    goto return_label513;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForExpr____n_block(variable[4]) /*AForExpr::_n_block*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5865); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_block(variable[4]) /*AForExpr::_n_block*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForExpr___replace_child, LOCATE_parser_prod, 5968); nit_exit(1);}
+      ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForExpr____n_block(variable[4]) /*AForExpr::_n_block*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/ =  NIT_NULL /*null*/;
     }
-    goto return_label492;
+    goto return_label513;
   }
-  return_label492: while(false);
+  return_label513: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AForExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5874, LOCATE_parser_prod___AForExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 5977, LOCATE_parser_prod___AForExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_vardecl(variable[3]) /*AForExpr::_n_vardecl*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_vardecl(variable[3]) /*AForExpr::_n_vardecl*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[3]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[3]) /*AForExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[3]) /*AForExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[3]) /*AForExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label493: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5887, LOCATE_parser_prod___AForExpr___visit_all_reverse};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_vardecl(variable[3]) /*AForExpr::_n_vardecl*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_vardecl(variable[3]) /*AForExpr::_n_vardecl*/;
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
-  }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[3]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[3]) /*AForExpr::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[3]) /*AForExpr::_n_block*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[3]) /*AForExpr::_n_block*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label494: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5816, LOCATE_parser_prod___AForExpr___empty_init};
-  val_t variable[2];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i]) return;
-  return_label495: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i] = 1;
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForExpr___init_aforexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5818, LOCATE_parser_prod___AForExpr___init_aforexpr};
-  val_t variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[3] =  param2;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AForExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AForExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_vardecl(variable[5]) /*AForExpr::_n_vardecl*/ =  variable[1] /*n_vardecl*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_vardecl*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_vardecl*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_vardecl*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_vardecl*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_vardecl*/)( variable[1] /*n_vardecl*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_vardecl*/)( variable[1] /*n_vardecl*/, variable[5]) /*PNode::parent=*/;
-  }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_kwdo(variable[5]) /*AForExpr::_n_kwdo*/ =  variable[2] /*n_kwdo*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwdo*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwdo*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwdo*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwdo*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwdo*/)( variable[2] /*n_kwdo*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwdo*/)( variable[2] /*n_kwdo*/, variable[5]) /*PNode::parent=*/;
-  }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForExpr____n_block(variable[5]) /*AForExpr::_n_block*/ =  variable[3] /*n_block*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_block*/)( variable[3] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_block*/)( variable[3] /*n_block*/, variable[5]) /*PNode::parent=*/;
-  }
-  return_label496: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i] = 1;
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForVardeclExpr___n_kwfor__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5901, LOCATE_parser_prod___AForVardeclExpr___n_kwfor__eq};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[3]) /*AForVardeclExpr::_n_kwfor*/ =  variable[1] /*n*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
-  }
-  return_label497: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForVardeclExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5908, LOCATE_parser_prod___AForVardeclExpr___n_id__eq};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_id(variable[3]) /*AForVardeclExpr::_n_id*/ =  variable[1] /*n*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
-  }
-  return_label498: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForVardeclExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5915, LOCATE_parser_prod___AForVardeclExpr___n_expr__eq};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[3]) /*AForVardeclExpr::_n_expr*/ =  variable[1] /*n*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
-  }
-  return_label499: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForVardeclExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 5946, LOCATE_parser_prod___AForVardeclExpr___replace_child};
-  val_t variable[5];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForVardeclExpr___replace_child, LOCATE_parser_prod, 5948); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[4]) /*AForVardeclExpr::_n_kwfor*/;
-  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwfor, ID_TKwfor)) /*cast TKwfor*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForVardeclExpr___replace_child, LOCATE_parser_prod, 5952); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[4]) /*AForVardeclExpr::_n_kwfor*/ =  variable[2] /*new_child*/;
-    } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[4]) /*AForVardeclExpr::_n_kwfor*/ =  NIT_NULL /*null*/;
-    }
-    goto return_label500;
-  }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForVardeclExpr____n_id(variable[4]) /*AForVardeclExpr::_n_id*/;
-  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForVardeclExpr___replace_child, LOCATE_parser_prod, 5962); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_id(variable[4]) /*AForVardeclExpr::_n_id*/ =  variable[2] /*new_child*/;
-    } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_id(variable[4]) /*AForVardeclExpr::_n_id*/ =  NIT_NULL /*null*/;
-    }
-    goto return_label500;
-  }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[4]) /*AForVardeclExpr::_n_expr*/;
-  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AForVardeclExpr___replace_child, LOCATE_parser_prod, 5972); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[4]) /*AForVardeclExpr::_n_expr*/ =  variable[2] /*new_child*/;
-    } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[4]) /*AForVardeclExpr::_n_expr*/ =  NIT_NULL /*null*/;
-    }
-    goto return_label500;
-  }
-  return_label500: while(false);
+  return_label514: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AForVardeclExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5981, LOCATE_parser_prod___AForVardeclExpr___visit_all};
+void parser_prod___AForExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 5996, LOCATE_parser_prod___AForExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[3]) /*AForVardeclExpr::_n_kwfor*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[3]) /*AForVardeclExpr::_n_kwfor*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_id(variable[3]) /*AForVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_id(variable[3]) /*AForVardeclExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[3]) /*AForVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[3]) /*AForVardeclExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label501: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AForVardeclExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 5994, LOCATE_parser_prod___AForVardeclExpr___visit_all_reverse};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[3]) /*AForVardeclExpr::_n_kwfor*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[3]) /*AForVardeclExpr::_n_kwfor*/;
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
-  }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_id(variable[3]) /*AForVardeclExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_id(variable[3]) /*AForVardeclExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[3]) /*AForVardeclExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[3]) /*AForVardeclExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label502: while(false);
+  return_label515: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AForVardeclExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5923, LOCATE_parser_prod___AForVardeclExpr___empty_init};
+void parser_prod___AForExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 5889, LOCATE_parser_prod___AForExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForVardeclExpr].i]) return;
-  return_label503: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForVardeclExpr].i] = 1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label516: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AForVardeclExpr___init_aforvardeclexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 5925, LOCATE_parser_prod___AForVardeclExpr___init_aforvardeclexpr};
-  val_t variable[6];
-  void **closurevariable = NULL;
+void parser_prod___AForExpr___init_aforexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 5891, LOCATE_parser_prod___AForExpr___init_aforexpr};
+  val_t variable[8];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForVardeclExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AForVardeclExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AForVardeclExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_kwfor(variable[5]) /*AForVardeclExpr::_n_kwfor*/ =  variable[1] /*n_kwfor*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwfor*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwfor*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwfor*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwfor*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwfor*/)( variable[1] /*n_kwfor*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwfor*/)( variable[1] /*n_kwfor*/, variable[5]) /*PNode::parent=*/;
+  /* Register variable[4]: Local variable */
+  variable[4] =  param3;
+  /* Register variable[5]: Local variable */
+  variable[5] =  param4;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i]) return;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___AForExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AForExpr::empty_init*/;
+  ATTR_parser_nodes___AForExpr____n_kwfor(variable[0]) /*AForExpr::_n_kwfor*/ =  variable[1] /*n_kwfor*/;
+  /* Register variable[7]: Result */
+  variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwfor*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwfor*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwfor*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwfor*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwfor*/)( variable[1] /*n_kwfor*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[7])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwfor*/)( variable[1] /*n_kwfor*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_id(variable[5]) /*AForVardeclExpr::_n_id*/ =  variable[2] /*n_id*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[5]) /*PNode::parent=*/;
+  ATTR_parser_nodes___AForExpr____n_id(variable[0]) /*AForExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[7]: Result */
+  variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[7])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AForVardeclExpr____n_expr(variable[5]) /*AForVardeclExpr::_n_expr*/ =  variable[3] /*n_expr*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/, variable[5]) /*PNode::parent=*/;
+  ATTR_parser_nodes___AForExpr____n_expr(variable[0]) /*AForExpr::_n_expr*/ =  variable[3] /*n_expr*/;
+  /* Register variable[7]: Result */
+  variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[7])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label504: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForVardeclExpr].i] = 1;
+  ATTR_parser_nodes___AForExpr____n_kwdo(variable[0]) /*AForExpr::_n_kwdo*/ =  variable[4] /*n_kwdo*/;
+  /* Register variable[7]: Result */
+  variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwdo*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwdo*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwdo*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwdo*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwdo*/)( variable[4] /*n_kwdo*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[7])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwdo*/)( variable[4] /*n_kwdo*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AForExpr____n_block(variable[0]) /*AForExpr::_n_block*/ =  variable[5] /*n_block*/;
+  /* Register variable[7]: Result */
+  variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_block*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_block*/)( variable[5] /*n_block*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[7])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_block*/)( variable[5] /*n_block*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label517: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AForExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___n_kwassert__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6008, LOCATE_parser_prod___AAssertExpr___n_kwassert__eq};
+  struct trace_t trace = {NULL, NULL, 6016, LOCATE_parser_prod___AAssertExpr___n_kwassert__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[3]) /*AAssertExpr::_n_kwassert*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label505: while(false);
+  return_label518: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6015, LOCATE_parser_prod___AAssertExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 6023, LOCATE_parser_prod___AAssertExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_id(variable[3]) /*AAssertExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label506: while(false);
+  return_label519: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6022, LOCATE_parser_prod___AAssertExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6030, LOCATE_parser_prod___AAssertExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_expr(variable[3]) /*AAssertExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label507: while(false);
+  return_label520: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6053, LOCATE_parser_prod___AAssertExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6061, LOCATE_parser_prod___AAssertExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6055); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[4]) /*AAssertExpr::_n_kwassert*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6063); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwassert, ID_TKwassert)) /*cast TKwassert*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6059); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[4]) /*AAssertExpr::_n_kwassert*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6067); nit_exit(1);}
+      ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[4]) /*AAssertExpr::_n_kwassert*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/ =  NIT_NULL /*null*/;
     }
-    goto return_label508;
+    goto return_label521;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssertExpr____n_id(variable[4]) /*AAssertExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6069); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_id(variable[4]) /*AAssertExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6077); nit_exit(1);}
+      ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_id(variable[4]) /*AAssertExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label508;
+    goto return_label521;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[4]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6079); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_expr(variable[4]) /*AAssertExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAssertExpr___replace_child, LOCATE_parser_prod, 6087); nit_exit(1);}
+      ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssertExpr____n_expr(variable[4]) /*AAssertExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label508;
+    goto return_label521;
   }
-  return_label508: while(false);
+  return_label521: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6088, LOCATE_parser_prod___AAssertExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6096, LOCATE_parser_prod___AAssertExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[3]) /*AAssertExpr::_n_kwassert*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[3]) /*AAssertExpr::_n_kwassert*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[3]) /*AAssertExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[3]) /*AAssertExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[3]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[3]) /*AAssertExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label509: while(false);
+  return_label522: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6101, LOCATE_parser_prod___AAssertExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6109, LOCATE_parser_prod___AAssertExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[3]) /*AAssertExpr::_n_kwassert*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[3]) /*AAssertExpr::_n_kwassert*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[3]) /*AAssertExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[3]) /*AAssertExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[3]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[3]) /*AAssertExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label510: while(false);
+  return_label523: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6030, LOCATE_parser_prod___AAssertExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6038, LOCATE_parser_prod___AAssertExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssertExpr].i]) return;
-  return_label511: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label524: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssertExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAssertExpr___init_aassertexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6032, LOCATE_parser_prod___AAssertExpr___init_aassertexpr};
+  struct trace_t trace = {NULL, NULL, 6040, LOCATE_parser_prod___AAssertExpr___init_aassertexpr};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssertExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AAssertExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AAssertExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[5]) /*AAssertExpr::_n_kwassert*/ =  variable[1] /*n_kwassert*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AAssertExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAssertExpr::empty_init*/;
+  ATTR_parser_nodes___AAssertExpr____n_kwassert(variable[0]) /*AAssertExpr::_n_kwassert*/ =  variable[1] /*n_kwassert*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwassert*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwassert*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwassert*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwassert*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwassert*/)( variable[1] /*n_kwassert*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwassert*/)( variable[1] /*n_kwassert*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwassert*/)( variable[1] /*n_kwassert*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_id(variable[5]) /*AAssertExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___AAssertExpr____n_id(variable[0]) /*AAssertExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAssertExpr____n_expr(variable[5]) /*AAssertExpr::_n_expr*/ =  variable[3] /*n_expr*/;
+  ATTR_parser_nodes___AAssertExpr____n_expr(variable[0]) /*AAssertExpr::_n_expr*/ =  variable[3] /*n_expr*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_expr*/)( variable[3] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label512: while(false);
+  return_label525: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAssertExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6122, LOCATE_parser_prod___AOnceExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6130, LOCATE_parser_prod___AOnceExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label513: while(false);
+  return_label526: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___n_kwonce__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6115, LOCATE_parser_prod___AOnceExpr___n_kwonce__eq};
+  struct trace_t trace = {NULL, NULL, 6123, LOCATE_parser_prod___AOnceExpr___n_kwonce__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[3]) /*AOnceExpr::_n_kwonce*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label514: while(false);
+  return_label527: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6148, LOCATE_parser_prod___AOnceExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6156, LOCATE_parser_prod___AOnceExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6150); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[4]) /*AOnceExpr::_n_kwonce*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6158); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwonce, ID_TKwonce)) /*cast TKwonce*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6154); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[4]) /*AOnceExpr::_n_kwonce*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6162); nit_exit(1);}
+      ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[4]) /*AOnceExpr::_n_kwonce*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/ =  NIT_NULL /*null*/;
     }
-    goto return_label515;
+    goto return_label528;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6164); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOnceExpr___replace_child, LOCATE_parser_prod, 6172); nit_exit(1);}
+      ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label515;
+    goto return_label528;
   }
-  return_label515: while(false);
+  return_label528: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6173, LOCATE_parser_prod___AOnceExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6181, LOCATE_parser_prod___AOnceExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[3]) /*AOnceExpr::_n_kwonce*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[3]) /*AOnceExpr::_n_kwonce*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label516: while(false);
+  return_label529: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6183, LOCATE_parser_prod___AOnceExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6191, LOCATE_parser_prod___AOnceExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[3]) /*AOnceExpr::_n_kwonce*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[3]) /*AOnceExpr::_n_kwonce*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label517: while(false);
+  return_label530: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6130, LOCATE_parser_prod___AOnceExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6138, LOCATE_parser_prod___AOnceExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOnceExpr].i]) return;
-  return_label518: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label531: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOnceExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOnceExpr___init_aonceexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6132, LOCATE_parser_prod___AOnceExpr___init_aonceexpr};
+  struct trace_t trace = {NULL, NULL, 6140, LOCATE_parser_prod___AOnceExpr___init_aonceexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOnceExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AOnceExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AOnceExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[4]) /*AOnceExpr::_n_kwonce*/ =  variable[1] /*n_kwonce*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AOnceExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AOnceExpr::empty_init*/;
+  ATTR_parser_nodes___AOnceExpr____n_kwonce(variable[0]) /*AOnceExpr::_n_kwonce*/ =  variable[1] /*n_kwonce*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwonce*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwonce*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwonce*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwonce*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwonce*/)( variable[1] /*n_kwonce*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwonce*/)( variable[1] /*n_kwonce*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwonce*/)( variable[1] /*n_kwonce*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label519: while(false);
+  return_label532: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOnceExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6194, LOCATE_parser_prod___ASendExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6202, LOCATE_parser_prod___ASendExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label520: while(false);
+  return_label533: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6215, LOCATE_parser_prod___ASendExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6223, LOCATE_parser_prod___ASendExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASendExpr___replace_child, LOCATE_parser_prod, 6217); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASendExpr___replace_child, LOCATE_parser_prod, 6225); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASendExpr___replace_child, LOCATE_parser_prod, 6221); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASendExpr___replace_child, LOCATE_parser_prod, 6229); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label521;
+    goto return_label534;
   }
-  return_label521: while(false);
+  return_label534: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6230, LOCATE_parser_prod___ASendExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6238, LOCATE_parser_prod___ASendExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label522: while(false);
+  return_label535: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6237, LOCATE_parser_prod___ASendExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6245, LOCATE_parser_prod___ASendExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label523: while(false);
+  return_label536: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6202, LOCATE_parser_prod___ASendExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6210, LOCATE_parser_prod___ASendExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASendExpr].i]) return;
-  return_label524: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label537: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASendExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASendExpr___init_asendexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6204, LOCATE_parser_prod___ASendExpr___init_asendexpr};
+  struct trace_t trace = {NULL, NULL, 6212, LOCATE_parser_prod___ASendExpr___init_asendexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASendExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ASendExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ASendExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ASendExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASendExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label525: while(false);
+  return_label538: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASendExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6245, LOCATE_parser_prod___ABinopExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6253, LOCATE_parser_prod___ABinopExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label526: while(false);
+  return_label539: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6252, LOCATE_parser_prod___ABinopExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6260, LOCATE_parser_prod___ABinopExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label527: while(false);
+  return_label540: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6278, LOCATE_parser_prod___ABinopExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6286, LOCATE_parser_prod___ABinopExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6280); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6288); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6284); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6292); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label528;
+    goto return_label541;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6294); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABinopExpr___replace_child, LOCATE_parser_prod, 6302); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label528;
+    goto return_label541;
   }
-  return_label528: while(false);
+  return_label541: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6303, LOCATE_parser_prod___ABinopExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6311, LOCATE_parser_prod___ABinopExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label529: while(false);
+  return_label542: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6313, LOCATE_parser_prod___ABinopExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6321, LOCATE_parser_prod___ABinopExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label530: while(false);
+  return_label543: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6260, LOCATE_parser_prod___ABinopExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6268, LOCATE_parser_prod___ABinopExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABinopExpr].i]) return;
-  return_label531: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label544: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABinopExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABinopExpr___init_abinopexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6262, LOCATE_parser_prod___ABinopExpr___init_abinopexpr};
+  struct trace_t trace = {NULL, NULL, 6270, LOCATE_parser_prod___ABinopExpr___init_abinopexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABinopExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ABinopExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ABinopExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ABinopExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABinopExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label532: while(false);
+  return_label545: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABinopExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6324, LOCATE_parser_prod___AOrExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6332, LOCATE_parser_prod___AOrExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AOrExpr____n_expr(variable[3]) /*AOrExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label533: while(false);
+  return_label546: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6331, LOCATE_parser_prod___AOrExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6339, LOCATE_parser_prod___AOrExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AOrExpr____n_expr2(variable[3]) /*AOrExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label534: while(false);
+  return_label547: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6357, LOCATE_parser_prod___AOrExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6365, LOCATE_parser_prod___AOrExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6359); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AOrExpr____n_expr(variable[4]) /*AOrExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6367); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6363); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOrExpr____n_expr(variable[4]) /*AOrExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6371); nit_exit(1);}
+      ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOrExpr____n_expr(variable[4]) /*AOrExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label535;
+    goto return_label548;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[4]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6373); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOrExpr____n_expr2(variable[4]) /*AOrExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrExpr___replace_child, LOCATE_parser_prod, 6381); nit_exit(1);}
+      ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AOrExpr____n_expr2(variable[4]) /*AOrExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label535;
+    goto return_label548;
   }
-  return_label535: while(false);
+  return_label548: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6382, LOCATE_parser_prod___AOrExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6390, LOCATE_parser_prod___AOrExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[3]) /*AOrExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[3]) /*AOrExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[3]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[3]) /*AOrExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label536: while(false);
+  return_label549: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6392, LOCATE_parser_prod___AOrExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6400, LOCATE_parser_prod___AOrExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[3]) /*AOrExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[3]) /*AOrExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[3]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[3]) /*AOrExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label537: while(false);
+  return_label550: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6339, LOCATE_parser_prod___AOrExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6347, LOCATE_parser_prod___AOrExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrExpr].i]) return;
-  return_label538: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label551: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrExpr___init_aorexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6341, LOCATE_parser_prod___AOrExpr___init_aorexpr};
+  struct trace_t trace = {NULL, NULL, 6349, LOCATE_parser_prod___AOrExpr___init_aorexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AOrExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AOrExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AOrExpr____n_expr(variable[4]) /*AOrExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AOrExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AOrExpr::empty_init*/;
+  ATTR_parser_nodes___AOrExpr____n_expr(variable[0]) /*AOrExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AOrExpr____n_expr2(variable[4]) /*AOrExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___AOrExpr____n_expr2(variable[0]) /*AOrExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label539: while(false);
+  return_label552: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6403, LOCATE_parser_prod___AAndExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6411, LOCATE_parser_prod___AAndExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAndExpr____n_expr(variable[3]) /*AAndExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label540: while(false);
+  return_label553: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6410, LOCATE_parser_prod___AAndExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6418, LOCATE_parser_prod___AAndExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAndExpr____n_expr2(variable[3]) /*AAndExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label541: while(false);
+  return_label554: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6436, LOCATE_parser_prod___AAndExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6444, LOCATE_parser_prod___AAndExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6438); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAndExpr____n_expr(variable[4]) /*AAndExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6446); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6442); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAndExpr____n_expr(variable[4]) /*AAndExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6450); nit_exit(1);}
+      ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAndExpr____n_expr(variable[4]) /*AAndExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label542;
+    goto return_label555;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[4]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6452); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAndExpr____n_expr2(variable[4]) /*AAndExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAndExpr___replace_child, LOCATE_parser_prod, 6460); nit_exit(1);}
+      ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAndExpr____n_expr2(variable[4]) /*AAndExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label542;
+    goto return_label555;
   }
-  return_label542: while(false);
+  return_label555: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6461, LOCATE_parser_prod___AAndExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6469, LOCATE_parser_prod___AAndExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[3]) /*AAndExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[3]) /*AAndExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[3]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[3]) /*AAndExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label543: while(false);
+  return_label556: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6471, LOCATE_parser_prod___AAndExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6479, LOCATE_parser_prod___AAndExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[3]) /*AAndExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[3]) /*AAndExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[3]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[3]) /*AAndExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label544: while(false);
+  return_label557: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6418, LOCATE_parser_prod___AAndExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6426, LOCATE_parser_prod___AAndExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAndExpr].i]) return;
-  return_label545: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label558: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAndExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAndExpr___init_aandexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6420, LOCATE_parser_prod___AAndExpr___init_aandexpr};
+  struct trace_t trace = {NULL, NULL, 6428, LOCATE_parser_prod___AAndExpr___init_aandexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAndExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AAndExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AAndExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAndExpr____n_expr(variable[4]) /*AAndExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AAndExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAndExpr::empty_init*/;
+  ATTR_parser_nodes___AAndExpr____n_expr(variable[0]) /*AAndExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAndExpr____n_expr2(variable[4]) /*AAndExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___AAndExpr____n_expr2(variable[0]) /*AAndExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label546: while(false);
+  return_label559: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAndExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___n_kwnot__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6482, LOCATE_parser_prod___ANotExpr___n_kwnot__eq};
+  struct trace_t trace = {NULL, NULL, 6490, LOCATE_parser_prod___ANotExpr___n_kwnot__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANotExpr____n_kwnot(variable[3]) /*ANotExpr::_n_kwnot*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label547: while(false);
+  return_label560: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6489, LOCATE_parser_prod___ANotExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6497, LOCATE_parser_prod___ANotExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANotExpr____n_expr(variable[3]) /*ANotExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label548: while(false);
+  return_label561: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6515, LOCATE_parser_prod___ANotExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6523, LOCATE_parser_prod___ANotExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6517); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[4]) /*ANotExpr::_n_kwnot*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6525); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnot, ID_TKwnot)) /*cast TKwnot*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6521); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANotExpr____n_kwnot(variable[4]) /*ANotExpr::_n_kwnot*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6529); nit_exit(1);}
+      ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANotExpr____n_kwnot(variable[4]) /*ANotExpr::_n_kwnot*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/ =  NIT_NULL /*null*/;
     }
-    goto return_label549;
+    goto return_label562;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANotExpr____n_expr(variable[4]) /*ANotExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6531); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANotExpr____n_expr(variable[4]) /*ANotExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANotExpr___replace_child, LOCATE_parser_prod, 6539); nit_exit(1);}
+      ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANotExpr____n_expr(variable[4]) /*ANotExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label549;
+    goto return_label562;
   }
-  return_label549: while(false);
+  return_label562: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6540, LOCATE_parser_prod___ANotExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6548, LOCATE_parser_prod___ANotExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[3]) /*ANotExpr::_n_kwnot*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[3]) /*ANotExpr::_n_kwnot*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[3]) /*ANotExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[3]) /*ANotExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label550: while(false);
+  return_label563: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6550, LOCATE_parser_prod___ANotExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6558, LOCATE_parser_prod___ANotExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[3]) /*ANotExpr::_n_kwnot*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[3]) /*ANotExpr::_n_kwnot*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[3]) /*ANotExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[3]) /*ANotExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label551: while(false);
+  return_label564: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6497, LOCATE_parser_prod___ANotExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6505, LOCATE_parser_prod___ANotExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANotExpr].i]) return;
-  return_label552: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label565: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANotExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANotExpr___init_anotexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6499, LOCATE_parser_prod___ANotExpr___init_anotexpr};
+  struct trace_t trace = {NULL, NULL, 6507, LOCATE_parser_prod___ANotExpr___init_anotexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANotExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ANotExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ANotExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ANotExpr____n_kwnot(variable[4]) /*ANotExpr::_n_kwnot*/ =  variable[1] /*n_kwnot*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ANotExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANotExpr::empty_init*/;
+  ATTR_parser_nodes___ANotExpr____n_kwnot(variable[0]) /*ANotExpr::_n_kwnot*/ =  variable[1] /*n_kwnot*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwnot*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwnot*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwnot*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwnot*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwnot*/)( variable[1] /*n_kwnot*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnot*/)( variable[1] /*n_kwnot*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnot*/)( variable[1] /*n_kwnot*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ANotExpr____n_expr(variable[4]) /*ANotExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___ANotExpr____n_expr(variable[0]) /*ANotExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label553: while(false);
+  return_label566: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANotExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6561, LOCATE_parser_prod___AEqExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6569, LOCATE_parser_prod___AEqExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label554: while(false);
+  return_label567: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6568, LOCATE_parser_prod___AEqExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6576, LOCATE_parser_prod___AEqExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label555: while(false);
+  return_label568: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6594, LOCATE_parser_prod___AEqExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6602, LOCATE_parser_prod___AEqExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6596); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6604); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6600); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6608); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label556;
+    goto return_label569;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6610); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEqExpr___replace_child, LOCATE_parser_prod, 6618); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label556;
+    goto return_label569;
   }
-  return_label556: while(false);
+  return_label569: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6619, LOCATE_parser_prod___AEqExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6627, LOCATE_parser_prod___AEqExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label557: while(false);
+  return_label570: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6629, LOCATE_parser_prod___AEqExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6637, LOCATE_parser_prod___AEqExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label558: while(false);
+  return_label571: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6576, LOCATE_parser_prod___AEqExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6584, LOCATE_parser_prod___AEqExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqExpr].i]) return;
-  return_label559: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label572: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEqExpr___init_aeqexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6578, LOCATE_parser_prod___AEqExpr___init_aeqexpr};
+  struct trace_t trace = {NULL, NULL, 6586, LOCATE_parser_prod___AEqExpr___init_aeqexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AEqExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AEqExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AEqExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AEqExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label560: while(false);
+  return_label573: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEqExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6640, LOCATE_parser_prod___AEeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6648, LOCATE_parser_prod___AEeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEeExpr____n_expr(variable[3]) /*AEeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label561: while(false);
+  return_label574: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6647, LOCATE_parser_prod___AEeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6655, LOCATE_parser_prod___AEeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEeExpr____n_expr2(variable[3]) /*AEeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label562: while(false);
+  return_label575: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6673, LOCATE_parser_prod___AEeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6681, LOCATE_parser_prod___AEeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6675); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AEeExpr____n_expr(variable[4]) /*AEeExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6683); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6679); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEeExpr____n_expr(variable[4]) /*AEeExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6687); nit_exit(1);}
+      ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEeExpr____n_expr(variable[4]) /*AEeExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label563;
+    goto return_label576;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[4]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6689); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEeExpr____n_expr2(variable[4]) /*AEeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEeExpr___replace_child, LOCATE_parser_prod, 6697); nit_exit(1);}
+      ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEeExpr____n_expr2(variable[4]) /*AEeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label563;
+    goto return_label576;
   }
-  return_label563: while(false);
+  return_label576: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6698, LOCATE_parser_prod___AEeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6706, LOCATE_parser_prod___AEeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[3]) /*AEeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[3]) /*AEeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[3]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[3]) /*AEeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label564: while(false);
+  return_label577: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6708, LOCATE_parser_prod___AEeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6716, LOCATE_parser_prod___AEeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[3]) /*AEeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[3]) /*AEeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[3]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[3]) /*AEeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label565: while(false);
+  return_label578: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6655, LOCATE_parser_prod___AEeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6663, LOCATE_parser_prod___AEeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEeExpr].i]) return;
-  return_label566: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label579: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEeExpr___init_aeeexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6657, LOCATE_parser_prod___AEeExpr___init_aeeexpr};
+  struct trace_t trace = {NULL, NULL, 6665, LOCATE_parser_prod___AEeExpr___init_aeeexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AEeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AEeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AEeExpr____n_expr(variable[4]) /*AEeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AEeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AEeExpr::empty_init*/;
+  ATTR_parser_nodes___AEeExpr____n_expr(variable[0]) /*AEeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AEeExpr____n_expr2(variable[4]) /*AEeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___AEeExpr____n_expr2(variable[0]) /*AEeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label567: while(false);
+  return_label580: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6719, LOCATE_parser_prod___ANeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6727, LOCATE_parser_prod___ANeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label568: while(false);
+  return_label581: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6726, LOCATE_parser_prod___ANeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6734, LOCATE_parser_prod___ANeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label569: while(false);
+  return_label582: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6752, LOCATE_parser_prod___ANeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6760, LOCATE_parser_prod___ANeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6754); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6762); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6758); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6766); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label570;
+    goto return_label583;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6768); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANeExpr___replace_child, LOCATE_parser_prod, 6776); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label570;
+    goto return_label583;
   }
-  return_label570: while(false);
+  return_label583: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6777, LOCATE_parser_prod___ANeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6785, LOCATE_parser_prod___ANeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label571: while(false);
+  return_label584: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6787, LOCATE_parser_prod___ANeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6795, LOCATE_parser_prod___ANeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label572: while(false);
+  return_label585: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6734, LOCATE_parser_prod___ANeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6742, LOCATE_parser_prod___ANeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeExpr].i]) return;
-  return_label573: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label586: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANeExpr___init_aneexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6736, LOCATE_parser_prod___ANeExpr___init_aneexpr};
+  struct trace_t trace = {NULL, NULL, 6744, LOCATE_parser_prod___ANeExpr___init_aneexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ANeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ANeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ANeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANeExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label574: while(false);
+  return_label587: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6798, LOCATE_parser_prod___ALtExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6806, LOCATE_parser_prod___ALtExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label575: while(false);
+  return_label588: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6805, LOCATE_parser_prod___ALtExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6813, LOCATE_parser_prod___ALtExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label576: while(false);
+  return_label589: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6831, LOCATE_parser_prod___ALtExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6839, LOCATE_parser_prod___ALtExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6833); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6841); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6837); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6845); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label577;
+    goto return_label590;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6847); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALtExpr___replace_child, LOCATE_parser_prod, 6855); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label577;
+    goto return_label590;
   }
-  return_label577: while(false);
+  return_label590: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6856, LOCATE_parser_prod___ALtExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6864, LOCATE_parser_prod___ALtExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label578: while(false);
+  return_label591: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6866, LOCATE_parser_prod___ALtExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6874, LOCATE_parser_prod___ALtExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label579: while(false);
+  return_label592: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6813, LOCATE_parser_prod___ALtExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6821, LOCATE_parser_prod___ALtExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtExpr].i]) return;
-  return_label580: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label593: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALtExpr___init_altexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6815, LOCATE_parser_prod___ALtExpr___init_altexpr};
+  struct trace_t trace = {NULL, NULL, 6823, LOCATE_parser_prod___ALtExpr___init_altexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ALtExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ALtExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ALtExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ALtExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label581: while(false);
+  return_label594: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALtExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6877, LOCATE_parser_prod___ALeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6885, LOCATE_parser_prod___ALeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label582: while(false);
+  return_label595: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6884, LOCATE_parser_prod___ALeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6892, LOCATE_parser_prod___ALeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label583: while(false);
+  return_label596: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6910, LOCATE_parser_prod___ALeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6918, LOCATE_parser_prod___ALeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6912); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6920); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6916); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6924); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label584;
+    goto return_label597;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6926); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ALeExpr___replace_child, LOCATE_parser_prod, 6934); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label584;
+    goto return_label597;
   }
-  return_label584: while(false);
+  return_label597: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6935, LOCATE_parser_prod___ALeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 6943, LOCATE_parser_prod___ALeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label585: while(false);
+  return_label598: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6945, LOCATE_parser_prod___ALeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 6953, LOCATE_parser_prod___ALeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label586: while(false);
+  return_label599: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6892, LOCATE_parser_prod___ALeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6900, LOCATE_parser_prod___ALeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeExpr].i]) return;
-  return_label587: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label600: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ALeExpr___init_aleexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6894, LOCATE_parser_prod___ALeExpr___init_aleexpr};
+  struct trace_t trace = {NULL, NULL, 6902, LOCATE_parser_prod___ALeExpr___init_aleexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ALeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ALeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ALeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ALeExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label588: while(false);
+  return_label601: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ALeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6956, LOCATE_parser_prod___AGtExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 6964, LOCATE_parser_prod___AGtExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label589: while(false);
+  return_label602: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 6963, LOCATE_parser_prod___AGtExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 6971, LOCATE_parser_prod___AGtExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label590: while(false);
+  return_label603: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 6989, LOCATE_parser_prod___AGtExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 6997, LOCATE_parser_prod___AGtExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 6991); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 6999); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 6995); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 7003); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label591;
+    goto return_label604;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 7005); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGtExpr___replace_child, LOCATE_parser_prod, 7013); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label591;
+    goto return_label604;
   }
-  return_label591: while(false);
+  return_label604: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7014, LOCATE_parser_prod___AGtExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7022, LOCATE_parser_prod___AGtExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label592: while(false);
+  return_label605: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7024, LOCATE_parser_prod___AGtExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7032, LOCATE_parser_prod___AGtExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label593: while(false);
+  return_label606: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6971, LOCATE_parser_prod___AGtExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 6979, LOCATE_parser_prod___AGtExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtExpr].i]) return;
-  return_label594: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label607: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGtExpr___init_agtexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 6973, LOCATE_parser_prod___AGtExpr___init_agtexpr};
+  struct trace_t trace = {NULL, NULL, 6981, LOCATE_parser_prod___AGtExpr___init_agtexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AGtExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AGtExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AGtExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AGtExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label595: while(false);
+  return_label608: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGtExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7035, LOCATE_parser_prod___AGeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7043, LOCATE_parser_prod___AGeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label596: while(false);
+  return_label609: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7042, LOCATE_parser_prod___AGeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7050, LOCATE_parser_prod___AGeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label597: while(false);
+  return_label610: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7068, LOCATE_parser_prod___AGeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7076, LOCATE_parser_prod___AGeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7070); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7078); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7074); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7082); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label598;
+    goto return_label611;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7084); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AGeExpr___replace_child, LOCATE_parser_prod, 7092); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label598;
+    goto return_label611;
   }
-  return_label598: while(false);
+  return_label611: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7093, LOCATE_parser_prod___AGeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7101, LOCATE_parser_prod___AGeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label599: while(false);
+  return_label612: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7103, LOCATE_parser_prod___AGeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7111, LOCATE_parser_prod___AGeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label600: while(false);
+  return_label613: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7050, LOCATE_parser_prod___AGeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7058, LOCATE_parser_prod___AGeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeExpr].i]) return;
-  return_label601: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label614: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AGeExpr___init_ageexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7052, LOCATE_parser_prod___AGeExpr___init_ageexpr};
+  struct trace_t trace = {NULL, NULL, 7060, LOCATE_parser_prod___AGeExpr___init_ageexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AGeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AGeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AGeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AGeExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label602: while(false);
+  return_label615: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AGeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7114, LOCATE_parser_prod___AIsaExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7122, LOCATE_parser_prod___AIsaExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIsaExpr____n_expr(variable[3]) /*AIsaExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label603: while(false);
+  return_label616: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7121, LOCATE_parser_prod___AIsaExpr___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 7129, LOCATE_parser_prod___AIsaExpr___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIsaExpr____n_type(variable[3]) /*AIsaExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label604: while(false);
+  return_label617: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7147, LOCATE_parser_prod___AIsaExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7155, LOCATE_parser_prod___AIsaExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7149); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[4]) /*AIsaExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7157); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7153); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIsaExpr____n_expr(variable[4]) /*AIsaExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7161); nit_exit(1);}
+      ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIsaExpr____n_expr(variable[4]) /*AIsaExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label605;
+    goto return_label618;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIsaExpr____n_type(variable[4]) /*AIsaExpr::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7163); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIsaExpr____n_type(variable[4]) /*AIsaExpr::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIsaExpr___replace_child, LOCATE_parser_prod, 7171); nit_exit(1);}
+      ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIsaExpr____n_type(variable[4]) /*AIsaExpr::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label605;
+    goto return_label618;
   }
-  return_label605: while(false);
+  return_label618: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7172, LOCATE_parser_prod___AIsaExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7180, LOCATE_parser_prod___AIsaExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[3]) /*AIsaExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[3]) /*AIsaExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[3]) /*AIsaExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[3]) /*AIsaExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label606: while(false);
+  return_label619: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7182, LOCATE_parser_prod___AIsaExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7190, LOCATE_parser_prod___AIsaExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[3]) /*AIsaExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[3]) /*AIsaExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[3]) /*AIsaExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[3]) /*AIsaExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label607: while(false);
+  return_label620: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7129, LOCATE_parser_prod___AIsaExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7137, LOCATE_parser_prod___AIsaExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIsaExpr].i]) return;
-  return_label608: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label621: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIsaExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIsaExpr___init_aisaexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7131, LOCATE_parser_prod___AIsaExpr___init_aisaexpr};
+  struct trace_t trace = {NULL, NULL, 7139, LOCATE_parser_prod___AIsaExpr___init_aisaexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIsaExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AIsaExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AIsaExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AIsaExpr____n_expr(variable[4]) /*AIsaExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AIsaExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIsaExpr::empty_init*/;
+  ATTR_parser_nodes___AIsaExpr____n_expr(variable[0]) /*AIsaExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AIsaExpr____n_type(variable[4]) /*AIsaExpr::_n_type*/ =  variable[2] /*n_type*/;
+  ATTR_parser_nodes___AIsaExpr____n_type(variable[0]) /*AIsaExpr::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label609: while(false);
+  return_label622: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIsaExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7193, LOCATE_parser_prod___APlusExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7201, LOCATE_parser_prod___APlusExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label610: while(false);
+  return_label623: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7200, LOCATE_parser_prod___APlusExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7208, LOCATE_parser_prod___APlusExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label611: while(false);
+  return_label624: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7226, LOCATE_parser_prod___APlusExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7234, LOCATE_parser_prod___APlusExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7228); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7236); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7232); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7240); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label612;
+    goto return_label625;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7242); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusExpr___replace_child, LOCATE_parser_prod, 7250); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label612;
+    goto return_label625;
   }
-  return_label612: while(false);
+  return_label625: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7251, LOCATE_parser_prod___APlusExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7259, LOCATE_parser_prod___APlusExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label613: while(false);
+  return_label626: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7261, LOCATE_parser_prod___APlusExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7269, LOCATE_parser_prod___APlusExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label614: while(false);
+  return_label627: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7208, LOCATE_parser_prod___APlusExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7216, LOCATE_parser_prod___APlusExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusExpr].i]) return;
-  return_label615: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label628: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusExpr___init_aplusexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7210, LOCATE_parser_prod___APlusExpr___init_aplusexpr};
+  struct trace_t trace = {NULL, NULL, 7218, LOCATE_parser_prod___APlusExpr___init_aplusexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___APlusExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*APlusExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___APlusExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APlusExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label616: while(false);
+  return_label629: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7272, LOCATE_parser_prod___AMinusExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7280, LOCATE_parser_prod___AMinusExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label617: while(false);
+  return_label630: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7279, LOCATE_parser_prod___AMinusExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7287, LOCATE_parser_prod___AMinusExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label618: while(false);
+  return_label631: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7305, LOCATE_parser_prod___AMinusExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7313, LOCATE_parser_prod___AMinusExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7307); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7315); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7311); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7319); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label619;
+    goto return_label632;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7321); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusExpr___replace_child, LOCATE_parser_prod, 7329); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label619;
+    goto return_label632;
   }
-  return_label619: while(false);
+  return_label632: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7330, LOCATE_parser_prod___AMinusExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7338, LOCATE_parser_prod___AMinusExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label620: while(false);
+  return_label633: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7340, LOCATE_parser_prod___AMinusExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7348, LOCATE_parser_prod___AMinusExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label621: while(false);
+  return_label634: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7287, LOCATE_parser_prod___AMinusExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7295, LOCATE_parser_prod___AMinusExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusExpr].i]) return;
-  return_label622: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label635: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusExpr___init_aminusexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7289, LOCATE_parser_prod___AMinusExpr___init_aminusexpr};
+  struct trace_t trace = {NULL, NULL, 7297, LOCATE_parser_prod___AMinusExpr___init_aminusexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AMinusExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AMinusExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AMinusExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMinusExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label623: while(false);
+  return_label636: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7351, LOCATE_parser_prod___AStarshipExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7359, LOCATE_parser_prod___AStarshipExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label624: while(false);
+  return_label637: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7358, LOCATE_parser_prod___AStarshipExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7366, LOCATE_parser_prod___AStarshipExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label625: while(false);
+  return_label638: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7384, LOCATE_parser_prod___AStarshipExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7392, LOCATE_parser_prod___AStarshipExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7386); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7394); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7390); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7398); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label626;
+    goto return_label639;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7400); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarshipExpr___replace_child, LOCATE_parser_prod, 7408); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label626;
+    goto return_label639;
   }
-  return_label626: while(false);
+  return_label639: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7409, LOCATE_parser_prod___AStarshipExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7417, LOCATE_parser_prod___AStarshipExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label627: while(false);
+  return_label640: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7419, LOCATE_parser_prod___AStarshipExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7427, LOCATE_parser_prod___AStarshipExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label628: while(false);
+  return_label641: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7366, LOCATE_parser_prod___AStarshipExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7374, LOCATE_parser_prod___AStarshipExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipExpr].i]) return;
-  return_label629: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label642: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarshipExpr___init_astarshipexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7368, LOCATE_parser_prod___AStarshipExpr___init_astarshipexpr};
+  struct trace_t trace = {NULL, NULL, 7376, LOCATE_parser_prod___AStarshipExpr___init_astarshipexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AStarshipExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AStarshipExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AStarshipExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStarshipExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label630: while(false);
+  return_label643: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarshipExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7430, LOCATE_parser_prod___AStarExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7438, LOCATE_parser_prod___AStarExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label631: while(false);
+  return_label644: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7437, LOCATE_parser_prod___AStarExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7445, LOCATE_parser_prod___AStarExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label632: while(false);
+  return_label645: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7463, LOCATE_parser_prod___AStarExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7471, LOCATE_parser_prod___AStarExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7465); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7473); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7469); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7477); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label633;
+    goto return_label646;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7479); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStarExpr___replace_child, LOCATE_parser_prod, 7487); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label633;
+    goto return_label646;
   }
-  return_label633: while(false);
+  return_label646: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7488, LOCATE_parser_prod___AStarExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7496, LOCATE_parser_prod___AStarExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label634: while(false);
+  return_label647: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7498, LOCATE_parser_prod___AStarExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7506, LOCATE_parser_prod___AStarExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label635: while(false);
+  return_label648: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7445, LOCATE_parser_prod___AStarExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7453, LOCATE_parser_prod___AStarExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarExpr].i]) return;
-  return_label636: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label649: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStarExpr___init_astarexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7447, LOCATE_parser_prod___AStarExpr___init_astarexpr};
+  struct trace_t trace = {NULL, NULL, 7455, LOCATE_parser_prod___AStarExpr___init_astarexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AStarExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AStarExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AStarExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStarExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label637: while(false);
+  return_label650: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStarExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7509, LOCATE_parser_prod___ASlashExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7517, LOCATE_parser_prod___ASlashExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label638: while(false);
+  return_label651: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7516, LOCATE_parser_prod___ASlashExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7524, LOCATE_parser_prod___ASlashExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label639: while(false);
+  return_label652: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7542, LOCATE_parser_prod___ASlashExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7550, LOCATE_parser_prod___ASlashExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7544); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7552); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7548); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7556); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label640;
+    goto return_label653;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7558); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASlashExpr___replace_child, LOCATE_parser_prod, 7566); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label640;
+    goto return_label653;
   }
-  return_label640: while(false);
+  return_label653: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7567, LOCATE_parser_prod___ASlashExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7575, LOCATE_parser_prod___ASlashExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label641: while(false);
+  return_label654: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7577, LOCATE_parser_prod___ASlashExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7585, LOCATE_parser_prod___ASlashExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label642: while(false);
+  return_label655: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7524, LOCATE_parser_prod___ASlashExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7532, LOCATE_parser_prod___ASlashExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashExpr].i]) return;
-  return_label643: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label656: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASlashExpr___init_aslashexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7526, LOCATE_parser_prod___ASlashExpr___init_aslashexpr};
+  struct trace_t trace = {NULL, NULL, 7534, LOCATE_parser_prod___ASlashExpr___init_aslashexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ASlashExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ASlashExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ASlashExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASlashExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label644: while(false);
+  return_label657: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASlashExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7588, LOCATE_parser_prod___APercentExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7596, LOCATE_parser_prod___APercentExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label645: while(false);
+  return_label658: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7595, LOCATE_parser_prod___APercentExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 7603, LOCATE_parser_prod___APercentExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label646: while(false);
+  return_label659: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7621, LOCATE_parser_prod___APercentExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7629, LOCATE_parser_prod___APercentExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7623); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7631); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7627); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7635); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label647;
+    goto return_label660;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7637); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APercentExpr___replace_child, LOCATE_parser_prod, 7645); nit_exit(1);}
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label647;
+    goto return_label660;
   }
-  return_label647: while(false);
+  return_label660: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7646, LOCATE_parser_prod___APercentExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7654, LOCATE_parser_prod___APercentExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label648: while(false);
+  return_label661: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7656, LOCATE_parser_prod___APercentExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7664, LOCATE_parser_prod___APercentExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[3]) /*ABinopExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label649: while(false);
+  return_label662: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7603, LOCATE_parser_prod___APercentExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7611, LOCATE_parser_prod___APercentExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentExpr].i]) return;
-  return_label650: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label663: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APercentExpr___init_apercentexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7605, LOCATE_parser_prod___APercentExpr___init_apercentexpr};
+  struct trace_t trace = {NULL, NULL, 7613, LOCATE_parser_prod___APercentExpr___init_apercentexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___APercentExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*APercentExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___APercentExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APercentExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[4]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ABinopExpr____n_expr2(variable[0]) /*ABinopExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label651: while(false);
+  return_label664: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APercentExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7674, LOCATE_parser_prod___AUminusExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7682, LOCATE_parser_prod___AUminusExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label652: while(false);
+  return_label665: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___n_minus__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7667, LOCATE_parser_prod___AUminusExpr___n_minus__eq};
+  struct trace_t trace = {NULL, NULL, 7675, LOCATE_parser_prod___AUminusExpr___n_minus__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AUminusExpr____n_minus(variable[3]) /*AUminusExpr::_n_minus*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label653: while(false);
+  return_label666: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7700, LOCATE_parser_prod___AUminusExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7708, LOCATE_parser_prod___AUminusExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7702); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[4]) /*AUminusExpr::_n_minus*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7710); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TMinus, ID_TMinus)) /*cast TMinus*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7706); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AUminusExpr____n_minus(variable[4]) /*AUminusExpr::_n_minus*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7714); nit_exit(1);}
+      ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AUminusExpr____n_minus(variable[4]) /*AUminusExpr::_n_minus*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/ =  NIT_NULL /*null*/;
     }
-    goto return_label654;
+    goto return_label667;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7716); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AUminusExpr___replace_child, LOCATE_parser_prod, 7724); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label654;
+    goto return_label667;
   }
-  return_label654: while(false);
+  return_label667: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7725, LOCATE_parser_prod___AUminusExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7733, LOCATE_parser_prod___AUminusExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[3]) /*AUminusExpr::_n_minus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[3]) /*AUminusExpr::_n_minus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label655: while(false);
+  return_label668: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7735, LOCATE_parser_prod___AUminusExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7743, LOCATE_parser_prod___AUminusExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[3]) /*AUminusExpr::_n_minus*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[3]) /*AUminusExpr::_n_minus*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label656: while(false);
+  return_label669: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7682, LOCATE_parser_prod___AUminusExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7690, LOCATE_parser_prod___AUminusExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUminusExpr].i]) return;
-  return_label657: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label670: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUminusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AUminusExpr___init_auminusexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7684, LOCATE_parser_prod___AUminusExpr___init_auminusexpr};
+  struct trace_t trace = {NULL, NULL, 7692, LOCATE_parser_prod___AUminusExpr___init_auminusexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUminusExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AUminusExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AUminusExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AUminusExpr____n_minus(variable[4]) /*AUminusExpr::_n_minus*/ =  variable[1] /*n_minus*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AUminusExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AUminusExpr::empty_init*/;
+  ATTR_parser_nodes___AUminusExpr____n_minus(variable[0]) /*AUminusExpr::_n_minus*/ =  variable[1] /*n_minus*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_minus*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_minus*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_minus*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_minus*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minus*/)( variable[1] /*n_minus*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label658: while(false);
+  return_label671: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AUminusExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___n_kwnew__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7746, LOCATE_parser_prod___ANewExpr___n_kwnew__eq};
+  struct trace_t trace = {NULL, NULL, 7754, LOCATE_parser_prod___ANewExpr___n_kwnew__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_kwnew(variable[3]) /*ANewExpr::_n_kwnew*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label659: while(false);
+  return_label672: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7753, LOCATE_parser_prod___ANewExpr___n_type__eq};
+  struct trace_t trace = {NULL, NULL, 7761, LOCATE_parser_prod___ANewExpr___n_type__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_type(variable[3]) /*ANewExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label660: while(false);
+  return_label673: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7760, LOCATE_parser_prod___ANewExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 7768, LOCATE_parser_prod___ANewExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_id(variable[3]) /*ANewExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label661: while(false);
+  return_label674: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7798, LOCATE_parser_prod___ANewExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7806, LOCATE_parser_prod___ANewExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7800); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[4]) /*ANewExpr::_n_kwnew*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7808); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnew, ID_TKwnew)) /*cast TKwnew*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7804); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_kwnew(variable[4]) /*ANewExpr::_n_kwnew*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7812); nit_exit(1);}
+      ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_kwnew(variable[4]) /*ANewExpr::_n_kwnew*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/ =  NIT_NULL /*null*/;
     }
-    goto return_label662;
+    goto return_label675;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANewExpr____n_type(variable[4]) /*ANewExpr::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7814); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_type(variable[4]) /*ANewExpr::_n_type*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7822); nit_exit(1);}
+      ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_type(variable[4]) /*ANewExpr::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/ =  NIT_NULL /*null*/;
     }
-    goto return_label662;
+    goto return_label675;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANewExpr____n_id(variable[4]) /*ANewExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7824); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_id(variable[4]) /*ANewExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7832); nit_exit(1);}
+      ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANewExpr____n_id(variable[4]) /*ANewExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label662;
+    goto return_label675;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[4]) /*ANewExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[7]) /*ANewExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7834); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[7]) /*ANewExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___replace_child, LOCATE_parser_prod, 7842); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[7]) /*ANewExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label662;
+      goto return_label675;
     }
-    continue_663: while(0);
+    continue_676: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_663: while(0);
-  return_label662: while(false);
+  break_676: while(0);
+  return_label675: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7845, LOCATE_parser_prod___ANewExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7853, LOCATE_parser_prod___ANewExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[3]) /*ANewExpr::_n_kwnew*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[3]) /*ANewExpr::_n_kwnew*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[3]) /*ANewExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[3]) /*ANewExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[3]) /*ANewExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[3]) /*ANewExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_args(variable[3]) /*ANewExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_665: while(0);
+    continue_678: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_665: while(0);
-  return_label664: while(false);
+  break_678: while(0);
+  return_label677: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7861, LOCATE_parser_prod___ANewExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7869, LOCATE_parser_prod___ANewExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[3]) /*ANewExpr::_n_kwnew*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[3]) /*ANewExpr::_n_kwnew*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[3]) /*ANewExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[3]) /*ANewExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[3]) /*ANewExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[3]) /*ANewExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[4]) /*ANewExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[4]) /*ANewExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_667: while(0);
+    continue_680: while(0);
   }
-  break_667: while(0);
-  return_label666: while(false);
+  break_680: while(0);
+  return_label679: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7768, LOCATE_parser_prod___ANewExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7776, LOCATE_parser_prod___ANewExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANewExpr].i]) return;
-  return_label668: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label681: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANewExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANewExpr___init_anewexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7770, LOCATE_parser_prod___ANewExpr___init_anewexpr};
+  struct trace_t trace = {NULL, NULL, 7778, LOCATE_parser_prod___ANewExpr___init_anewexpr};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANewExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___ANewExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*ANewExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_kwnew(variable[6]) /*ANewExpr::_n_kwnew*/ =  variable[1] /*n_kwnew*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___ANewExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANewExpr::empty_init*/;
+  ATTR_parser_nodes___ANewExpr____n_kwnew(variable[0]) /*ANewExpr::_n_kwnew*/ =  variable[1] /*n_kwnew*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwnew*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwnew*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwnew*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwnew*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwnew*/)( variable[1] /*n_kwnew*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnew*/)( variable[1] /*n_kwnew*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnew*/)( variable[1] /*n_kwnew*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_type(variable[6]) /*ANewExpr::_n_type*/ =  variable[2] /*n_type*/;
+  ATTR_parser_nodes___ANewExpr____n_type(variable[0]) /*ANewExpr::_n_type*/ =  variable[2] /*n_type*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_type*/)( variable[2] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_type*/)( variable[2] /*n_type*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ANewExpr____n_id(variable[6]) /*ANewExpr::_n_id*/ =  variable[3] /*n_id*/;
+  ATTR_parser_nodes___ANewExpr____n_id(variable[0]) /*ANewExpr::_n_id*/ =  variable[3] /*n_id*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)( variable[3] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ANewExpr____n_args(variable[6]) /*ANewExpr::_n_args*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[4] /*n_args*/)( variable[4] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[4] /*n_args*/)( variable[4] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___init_anewexpr, LOCATE_parser_prod, 7792); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___ANewExpr____n_args(variable[9]) /*ANewExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANewExpr___init_anewexpr, LOCATE_parser_prod, 7800); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___ANewExpr____n_args(variable[0]) /*ANewExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_670: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_683: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
   }
-  break_670: while(0);
-  return_label669: while(false);
+  break_683: while(0);
+  return_label682: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANewExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7882, LOCATE_parser_prod___AAttrExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7890, LOCATE_parser_prod___AAttrExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label671: while(false);
+  return_label684: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7889, LOCATE_parser_prod___AAttrExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 7897, LOCATE_parser_prod___AAttrExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label672: while(false);
+  return_label685: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 7915, LOCATE_parser_prod___AAttrExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 7923, LOCATE_parser_prod___AAttrExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7917); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7925); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7921); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7929); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label673;
+    goto return_label686;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAttrid, ID_TAttrid)) /*cast TAttrid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7931); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrExpr___replace_child, LOCATE_parser_prod, 7939); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label673;
+    goto return_label686;
   }
-  return_label673: while(false);
+  return_label686: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7940, LOCATE_parser_prod___AAttrExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 7948, LOCATE_parser_prod___AAttrExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label674: while(false);
+  return_label687: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7950, LOCATE_parser_prod___AAttrExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 7958, LOCATE_parser_prod___AAttrExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label675: while(false);
+  return_label688: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7897, LOCATE_parser_prod___AAttrExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7905, LOCATE_parser_prod___AAttrExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrExpr].i]) return;
-  return_label676: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label689: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrExpr___init_aattrexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7899, LOCATE_parser_prod___AAttrExpr___init_aattrexpr};
+  struct trace_t trace = {NULL, NULL, 7907, LOCATE_parser_prod___AAttrExpr___init_aattrexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AAttrExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AAttrExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AAttrExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAttrExpr::empty_init*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label677: while(false);
+  return_label690: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7961, LOCATE_parser_prod___AAttrAssignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 7969, LOCATE_parser_prod___AAttrAssignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label678: while(false);
+  return_label691: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7968, LOCATE_parser_prod___AAttrAssignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 7976, LOCATE_parser_prod___AAttrAssignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label679: while(false);
+  return_label692: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7975, LOCATE_parser_prod___AAttrAssignExpr___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 7983, LOCATE_parser_prod___AAttrAssignExpr___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label680: while(false);
+  return_label693: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 7982, LOCATE_parser_prod___AAttrAssignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 7990, LOCATE_parser_prod___AAttrAssignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label681: while(false);
+  return_label694: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8018, LOCATE_parser_prod___AAttrAssignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8026, LOCATE_parser_prod___AAttrAssignExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8020); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8028); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8024); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8032); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label682;
+    goto return_label695;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAttrid, ID_TAttrid)) /*cast TAttrid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8034); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8042); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label682;
+    goto return_label695;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8044); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8052); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label682;
+    goto return_label695;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8054); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrAssignExpr___replace_child, LOCATE_parser_prod, 8062); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label682;
+    goto return_label695;
   }
-  return_label682: while(false);
+  return_label695: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8063, LOCATE_parser_prod___AAttrAssignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8071, LOCATE_parser_prod___AAttrAssignExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label683: while(false);
+  return_label696: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8079, LOCATE_parser_prod___AAttrAssignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8087, LOCATE_parser_prod___AAttrAssignExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label684: while(false);
+  return_label697: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7990, LOCATE_parser_prod___AAttrAssignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 7998, LOCATE_parser_prod___AAttrAssignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrAssignExpr].i]) return;
-  return_label685: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label698: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrAssignExpr___init_aattrassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 7992, LOCATE_parser_prod___AAttrAssignExpr___init_aattrassignexpr};
+  struct trace_t trace = {NULL, NULL, 8000, LOCATE_parser_prod___AAttrAssignExpr___init_aattrassignexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrAssignExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___AAttrAssignExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*AAttrAssignExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[6]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AAttrAssignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAttrAssignExpr::empty_init*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[6]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[6]) /*AAssignFormExpr::_n_assign*/ =  variable[3] /*n_assign*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[3] /*n_assign*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[6]) /*AAssignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)( variable[4] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label686: while(false);
+  return_label699: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8096, LOCATE_parser_prod___AAttrReassignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8104, LOCATE_parser_prod___AAttrReassignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label687: while(false);
+  return_label700: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8103, LOCATE_parser_prod___AAttrReassignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 8111, LOCATE_parser_prod___AAttrReassignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label688: while(false);
+  return_label701: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___n_assign_op__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8110, LOCATE_parser_prod___AAttrReassignExpr___n_assign_op__eq};
+  struct trace_t trace = {NULL, NULL, 8118, LOCATE_parser_prod___AAttrReassignExpr___n_assign_op__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label689: while(false);
+  return_label702: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8117, LOCATE_parser_prod___AAttrReassignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 8125, LOCATE_parser_prod___AAttrReassignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label690: while(false);
+  return_label703: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8153, LOCATE_parser_prod___AAttrReassignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8161, LOCATE_parser_prod___AAttrReassignExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8155); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8163); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8159); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8167); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[4]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label691;
+    goto return_label704;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAttrid, ID_TAttrid)) /*cast TAttrid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8169); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8177); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[4]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label691;
+    goto return_label704;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAssignOp, ID_PAssignOp)) /*cast PAssignOp*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8179); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8187); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
     }
-    goto return_label691;
+    goto return_label704;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8189); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAttrReassignExpr___replace_child, LOCATE_parser_prod, 8197); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label691;
+    goto return_label704;
   }
-  return_label691: while(false);
+  return_label704: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8198, LOCATE_parser_prod___AAttrReassignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8206, LOCATE_parser_prod___AAttrReassignExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label692: while(false);
+  return_label705: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8214, LOCATE_parser_prod___AAttrReassignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8222, LOCATE_parser_prod___AAttrReassignExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[3]) /*AAttrFormExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[3]) /*AAttrFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label693: while(false);
+  return_label706: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8125, LOCATE_parser_prod___AAttrReassignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8133, LOCATE_parser_prod___AAttrReassignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrReassignExpr].i]) return;
-  return_label694: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label707: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AAttrReassignExpr___init_aattrreassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8127, LOCATE_parser_prod___AAttrReassignExpr___init_aattrreassignexpr};
+  struct trace_t trace = {NULL, NULL, 8135, LOCATE_parser_prod___AAttrReassignExpr___init_aattrreassignexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrReassignExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___AAttrReassignExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*AAttrReassignExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[6]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AAttrReassignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAttrReassignExpr::empty_init*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[6]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[6]) /*AReassignFormExpr::_n_assign_op*/ =  variable[3] /*n_assign_op*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[3] /*n_assign_op*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_assign_op*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_assign_op*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_assign_op*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_assign_op*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[6]) /*AReassignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)( variable[4] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label695: while(false);
+  return_label708: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAttrReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8231, LOCATE_parser_prod___ACallExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8239, LOCATE_parser_prod___ACallExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label696: while(false);
+  return_label709: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8238, LOCATE_parser_prod___ACallExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 8246, LOCATE_parser_prod___ACallExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label697: while(false);
+  return_label710: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8278, LOCATE_parser_prod___ACallExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8286, LOCATE_parser_prod___ACallExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8280); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8288); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8284); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8292); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label698;
+    goto return_label711;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8294); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8302); nit_exit(1);}
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label698;
+    goto return_label711;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8304); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8312); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label698;
+      goto return_label711;
     }
-    continue_699: while(0);
+    continue_712: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_699: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
+  break_712: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8316); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___replace_child, LOCATE_parser_prod, 8324); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label698;
+      goto return_label711;
     }
-    continue_700: while(0);
+    continue_713: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_700: while(0);
-  return_label698: while(false);
+  break_713: while(0);
+  return_label711: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8327, LOCATE_parser_prod___ACallExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8335, LOCATE_parser_prod___ACallExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[3]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_702: while(0);
+    continue_715: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_702: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[3]) /*ASendExpr::_n_closure_defs*/;
+  break_715: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_703: while(0);
+    continue_716: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_703: while(0);
-  return_label701: while(false);
+  break_716: while(0);
+  return_label714: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8343, LOCATE_parser_prod___ACallExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8351, LOCATE_parser_prod___ACallExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_705: while(0);
+    continue_718: while(0);
   }
-  break_705: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
+  break_718: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_706: while(0);
+    continue_719: while(0);
   }
-  break_706: while(0);
-  return_label704: while(false);
+  break_719: while(0);
+  return_label717: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8246, LOCATE_parser_prod___ACallExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8254, LOCATE_parser_prod___ACallExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallExpr].i]) return;
-  return_label707: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label720: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallExpr___init_acallexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8248, LOCATE_parser_prod___ACallExpr___init_acallexpr};
+  struct trace_t trace = {NULL, NULL, 8256, LOCATE_parser_prod___ACallExpr___init_acallexpr};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___ACallExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*ACallExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[6]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___ACallExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ACallExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[6]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ACallFormExpr____n_args(variable[6]) /*ACallFormExpr::_n_args*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___init_acallexpr, LOCATE_parser_prod, 8266); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[9]) /*ACallFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___init_acallexpr, LOCATE_parser_prod, 8274); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_709: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
-  }
-  break_709: while(0);
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[PClosureDef]*/
-  ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[6]) /*ASendExpr::_n_closure_defs*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[4] /*n_closure_defs*/)( variable[4] /*n_closure_defs*/) /*AbstractArray::iterator*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_722: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
+  }
+  break_722: while(0);
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[PClosureDef]*/;
+  ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[4] /*n_closure_defs*/)( variable[4] /*n_closure_defs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___init_acallexpr, LOCATE_parser_prod, 8272); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[9]) /*ASendExpr::_n_closure_defs*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallExpr___init_acallexpr, LOCATE_parser_prod, 8280); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_710: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_723: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
   }
-  break_710: while(0);
-  return_label708: while(false);
+  break_723: while(0);
+  return_label721: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8368, LOCATE_parser_prod___ACallAssignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8376, LOCATE_parser_prod___ACallAssignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label711: while(false);
+  return_label724: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8375, LOCATE_parser_prod___ACallAssignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 8383, LOCATE_parser_prod___ACallAssignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label712: while(false);
+  return_label725: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8382, LOCATE_parser_prod___ACallAssignExpr___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 8390, LOCATE_parser_prod___ACallAssignExpr___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label713: while(false);
+  return_label726: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8389, LOCATE_parser_prod___ACallAssignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 8397, LOCATE_parser_prod___ACallAssignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label714: while(false);
+  return_label727: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8432, LOCATE_parser_prod___ACallAssignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8440, LOCATE_parser_prod___ACallAssignExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8434); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8442); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8438); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8446); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label715;
+    goto return_label728;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8448); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8456); nit_exit(1);}
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label715;
+    goto return_label728;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8458); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8466); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label715;
+      goto return_label728;
     }
-    continue_716: while(0);
+    continue_729: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_716: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/;
+  break_729: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8470); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8478); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label715;
+    goto return_label728;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8480); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___replace_child, LOCATE_parser_prod, 8488); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label715;
+    goto return_label728;
   }
-  return_label715: while(false);
+  return_label728: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8489, LOCATE_parser_prod___ACallAssignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8497, LOCATE_parser_prod___ACallAssignExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[3]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_718: while(0);
+    continue_731: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_718: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  break_731: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label717: while(false);
+  return_label730: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8508, LOCATE_parser_prod___ACallAssignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8516, LOCATE_parser_prod___ACallAssignExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_720: while(0);
+    continue_733: while(0);
   }
-  break_720: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  break_733: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label719: while(false);
+  return_label732: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8397, LOCATE_parser_prod___ACallAssignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8405, LOCATE_parser_prod___ACallAssignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallAssignExpr].i]) return;
-  return_label721: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label734: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallAssignExpr___init_acallassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8399, LOCATE_parser_prod___ACallAssignExpr___init_acallassignexpr};
+  struct trace_t trace = {NULL, NULL, 8407, LOCATE_parser_prod___ACallAssignExpr___init_acallassignexpr};
   val_t variable[11];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallAssignExpr].i]) return;
-  variable[7] = variable[0];
-  CALL_parser_prod___ACallAssignExpr___empty_init(variable[7])(variable[7], init_table /*YYY*/) /*ACallAssignExpr::empty_init*/;
-  variable[7] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[7]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___ACallAssignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ACallAssignExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[7]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  variable[8] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/ = variable[8];
-  variable[7] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[7]: Result */
+  variable[7] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/ = variable[7];
+  /* Register variable[7]: For iterator */
+  variable[7] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[8] = CALL_abstract_collection___Iterator___is_ok(variable[7])(variable[7]) /*ArrayIterator::is_ok*/;
+    /* Register variable[8]: For 'is_ok' result */
+    variable[8] = CALL_abstract_collection___Iterator___is_ok(variable[7])(variable[7]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[8])) break; /*for*/
-    variable[8] = CALL_abstract_collection___Iterator___item(variable[7])(variable[7]) /*ArrayIterator::item*/;
+    variable[8] = CALL_abstract_collection___Iterator___item(variable[7])(variable[7]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[9]: Local variable */
     variable[9] = variable[8];
+    /* Register variable[10]: Result */
     variable[10] = TAG_Bool(( variable[9] /*n*/==NIT_NULL) || VAL_ISA( variable[9] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[10])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___init_acallassignexpr, LOCATE_parser_prod, 8418); nit_exit(1);}
-    variable[10] = variable[0];
-    variable[10] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[10]) /*ACallFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[10])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallAssignExpr___init_acallassignexpr, LOCATE_parser_prod, 8426); nit_exit(1);}
+    /* Register variable[10]: Result */
+    variable[10] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[10])(variable[10],  variable[9] /*n*/) /*IndexedCollection::add*/;
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[9] /*n*/)( variable[9] /*n*/, variable[10]) /*PNode::parent=*/;
-    continue_723: while(0);
-    CALL_abstract_collection___Iterator___next(variable[7])(variable[7]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[9] /*n*/)( variable[9] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_736: while(0);
+    CALL_abstract_collection___Iterator___next(variable[7])(variable[7]) /*Iterator::next*/;
   }
-  break_723: while(0);
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[7]) /*AAssignFormExpr::_n_assign*/ =  variable[4] /*n_assign*/;
+  break_736: while(0);
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[4] /*n_assign*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign*/)( variable[4] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[7]) /*AAssignFormExpr::_n_value*/ =  variable[5] /*n_value*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[5] /*n_value*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_value*/)( variable[5] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_value*/)( variable[5] /*n_value*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_value*/)( variable[5] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label722: while(false);
+  return_label735: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8532, LOCATE_parser_prod___ACallReassignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8540, LOCATE_parser_prod___ACallReassignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label724: while(false);
+  return_label737: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8539, LOCATE_parser_prod___ACallReassignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 8547, LOCATE_parser_prod___ACallReassignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label725: while(false);
+  return_label738: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___n_assign_op__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8546, LOCATE_parser_prod___ACallReassignExpr___n_assign_op__eq};
+  struct trace_t trace = {NULL, NULL, 8554, LOCATE_parser_prod___ACallReassignExpr___n_assign_op__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label726: while(false);
+  return_label739: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8553, LOCATE_parser_prod___ACallReassignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 8561, LOCATE_parser_prod___ACallReassignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label727: while(false);
+  return_label740: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8596, LOCATE_parser_prod___ACallReassignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8604, LOCATE_parser_prod___ACallReassignExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8598); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8606); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8602); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8610); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label728;
+    goto return_label741;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8612); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8620); nit_exit(1);}
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACallFormExpr____n_id(variable[4]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label728;
+    goto return_label741;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8622); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8630); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label728;
+      goto return_label741;
     }
-    continue_729: while(0);
+    continue_742: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_729: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/;
+  break_742: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAssignOp, ID_PAssignOp)) /*cast PAssignOp*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8634); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8642); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
     }
-    goto return_label728;
+    goto return_label741;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8644); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___replace_child, LOCATE_parser_prod, 8652); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label728;
+    goto return_label741;
   }
-  return_label728: while(false);
+  return_label741: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8653, LOCATE_parser_prod___ACallReassignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8661, LOCATE_parser_prod___ACallReassignExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[3]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_731: while(0);
+    continue_744: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_731: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  break_744: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label730: while(false);
+  return_label743: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8672, LOCATE_parser_prod___ACallReassignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8680, LOCATE_parser_prod___ACallReassignExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[3]) /*ACallFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[4]) /*ACallFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_733: while(0);
+    continue_746: while(0);
   }
-  break_733: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  break_746: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label732: while(false);
+  return_label745: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8561, LOCATE_parser_prod___ACallReassignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8569, LOCATE_parser_prod___ACallReassignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallReassignExpr].i]) return;
-  return_label734: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label747: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACallReassignExpr___init_acallreassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, val_t  param4, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8563, LOCATE_parser_prod___ACallReassignExpr___init_acallreassignexpr};
+  struct trace_t trace = {NULL, NULL, 8571, LOCATE_parser_prod___ACallReassignExpr___init_acallreassignexpr};
   val_t variable[11];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
+  /* Register variable[5]: Local variable */
   variable[5] =  param4;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallReassignExpr].i]) return;
-  variable[7] = variable[0];
-  CALL_parser_prod___ACallReassignExpr___empty_init(variable[7])(variable[7], init_table /*YYY*/) /*ACallReassignExpr::empty_init*/;
-  variable[7] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[7]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Method return value and escape marker */
+  CALL_parser_prod___ACallReassignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ACallReassignExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___ACallFormExpr____n_id(variable[7]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  ATTR_parser_nodes___ACallFormExpr____n_id(variable[0]) /*ACallFormExpr::_n_id*/ =  variable[2] /*n_id*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_id*/)( variable[2] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_id*/)( variable[2] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  variable[8] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ACallFormExpr____n_args(variable[7]) /*ACallFormExpr::_n_args*/ = variable[8];
-  variable[7] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[7]: Result */
+  variable[7] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/ = variable[7];
+  /* Register variable[7]: For iterator */
+  variable[7] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[8] = CALL_abstract_collection___Iterator___is_ok(variable[7])(variable[7]) /*ArrayIterator::is_ok*/;
+    /* Register variable[8]: For 'is_ok' result */
+    variable[8] = CALL_abstract_collection___Iterator___is_ok(variable[7])(variable[7]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[8])) break; /*for*/
-    variable[8] = CALL_abstract_collection___Iterator___item(variable[7])(variable[7]) /*ArrayIterator::item*/;
+    variable[8] = CALL_abstract_collection___Iterator___item(variable[7])(variable[7]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[9]: Local variable */
     variable[9] = variable[8];
+    /* Register variable[10]: Result */
     variable[10] = TAG_Bool(( variable[9] /*n*/==NIT_NULL) || VAL_ISA( variable[9] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[10])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___init_acallreassignexpr, LOCATE_parser_prod, 8582); nit_exit(1);}
-    variable[10] = variable[0];
-    variable[10] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[10]) /*ACallFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[10])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACallReassignExpr___init_acallreassignexpr, LOCATE_parser_prod, 8590); nit_exit(1);}
+    /* Register variable[10]: Result */
+    variable[10] = ATTR_parser_nodes___ACallFormExpr____n_args(variable[0]) /*ACallFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[10])(variable[10],  variable[9] /*n*/) /*IndexedCollection::add*/;
-    variable[10] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[9] /*n*/)( variable[9] /*n*/, variable[10]) /*PNode::parent=*/;
-    continue_736: while(0);
-    CALL_abstract_collection___Iterator___next(variable[7])(variable[7]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[9] /*n*/)( variable[9] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_749: while(0);
+    CALL_abstract_collection___Iterator___next(variable[7])(variable[7]) /*Iterator::next*/;
   }
-  break_736: while(0);
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[7]) /*AReassignFormExpr::_n_assign_op*/ =  variable[4] /*n_assign_op*/;
+  break_749: while(0);
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[4] /*n_assign_op*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_assign_op*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_assign_op*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_assign_op*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_assign_op*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_assign_op*/)( variable[4] /*n_assign_op*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign_op*/)( variable[4] /*n_assign_op*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_assign_op*/)( variable[4] /*n_assign_op*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[7] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[7]) /*AReassignFormExpr::_n_value*/ =  variable[5] /*n_value*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[5] /*n_value*/;
+  /* Register variable[7]: Result */
   variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[5] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[5] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[5] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[5] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[5] /*n_value*/)( variable[5] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[7])) { /*if*/
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_value*/)( variable[5] /*n_value*/, variable[7]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n_value*/)( variable[5] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label735: while(false);
+  return_label748: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACallReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___n_qualified__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8696, LOCATE_parser_prod___ASuperExpr___n_qualified__eq};
+  struct trace_t trace = {NULL, NULL, 8704, LOCATE_parser_prod___ASuperExpr___n_qualified__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASuperExpr____n_qualified(variable[3]) /*ASuperExpr::_n_qualified*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label737: while(false);
+  return_label750: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___n_kwsuper__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8703, LOCATE_parser_prod___ASuperExpr___n_kwsuper__eq};
+  struct trace_t trace = {NULL, NULL, 8711, LOCATE_parser_prod___ASuperExpr___n_kwsuper__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[3]) /*ASuperExpr::_n_kwsuper*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label738: while(false);
+  return_label751: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8736, LOCATE_parser_prod___ASuperExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8744, LOCATE_parser_prod___ASuperExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8738); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[4]) /*ASuperExpr::_n_qualified*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8746); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PQualified, ID_PQualified)) /*cast PQualified*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8742); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperExpr____n_qualified(variable[4]) /*ASuperExpr::_n_qualified*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8750); nit_exit(1);}
+      ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperExpr____n_qualified(variable[4]) /*ASuperExpr::_n_qualified*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/ =  NIT_NULL /*null*/;
     }
-    goto return_label739;
+    goto return_label752;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[4]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwsuper, ID_TKwsuper)) /*cast TKwsuper*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8752); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[4]) /*ASuperExpr::_n_kwsuper*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8760); nit_exit(1);}
+      ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[4]) /*ASuperExpr::_n_kwsuper*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/ =  NIT_NULL /*null*/;
     }
-    goto return_label739;
+    goto return_label752;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[4]) /*ASuperExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[7]) /*ASuperExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8762); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[7]) /*ASuperExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___replace_child, LOCATE_parser_prod, 8770); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[7]) /*ASuperExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label739;
+      goto return_label752;
     }
-    continue_740: while(0);
+    continue_753: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_740: while(0);
-  return_label739: while(false);
+  break_753: while(0);
+  return_label752: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8773, LOCATE_parser_prod___ASuperExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8781, LOCATE_parser_prod___ASuperExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[3]) /*ASuperExpr::_n_qualified*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[3]) /*ASuperExpr::_n_qualified*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[3]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[3]) /*ASuperExpr::_n_kwsuper*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperExpr____n_args(variable[3]) /*ASuperExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_742: while(0);
+    continue_755: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_742: while(0);
-  return_label741: while(false);
+  break_755: while(0);
+  return_label754: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8786, LOCATE_parser_prod___ASuperExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8794, LOCATE_parser_prod___ASuperExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[3]) /*ASuperExpr::_n_qualified*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[3]) /*ASuperExpr::_n_qualified*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[3]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[3]) /*ASuperExpr::_n_kwsuper*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[4]) /*ASuperExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[4]) /*ASuperExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_744: while(0);
+    continue_757: while(0);
   }
-  break_744: while(0);
-  return_label743: while(false);
+  break_757: while(0);
+  return_label756: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8711, LOCATE_parser_prod___ASuperExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8719, LOCATE_parser_prod___ASuperExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperExpr].i]) return;
-  return_label745: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label758: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASuperExpr___init_asuperexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8713, LOCATE_parser_prod___ASuperExpr___init_asuperexpr};
+  struct trace_t trace = {NULL, NULL, 8721, LOCATE_parser_prod___ASuperExpr___init_asuperexpr};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___ASuperExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*ASuperExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ASuperExpr____n_qualified(variable[5]) /*ASuperExpr::_n_qualified*/ =  variable[1] /*n_qualified*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___ASuperExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASuperExpr::empty_init*/;
+  ATTR_parser_nodes___ASuperExpr____n_qualified(variable[0]) /*ASuperExpr::_n_qualified*/ =  variable[1] /*n_qualified*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_qualified*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_qualified*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_qualified*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_qualified*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_qualified*/)( variable[1] /*n_qualified*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_qualified*/)( variable[1] /*n_qualified*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_qualified*/)( variable[1] /*n_qualified*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[5]) /*ASuperExpr::_n_kwsuper*/ =  variable[2] /*n_kwsuper*/;
+  ATTR_parser_nodes___ASuperExpr____n_kwsuper(variable[0]) /*ASuperExpr::_n_kwsuper*/ =  variable[2] /*n_kwsuper*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwsuper*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwsuper*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwsuper*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwsuper*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwsuper*/)( variable[2] /*n_kwsuper*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwsuper*/)( variable[2] /*n_kwsuper*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwsuper*/)( variable[2] /*n_kwsuper*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ASuperExpr____n_args(variable[5]) /*ASuperExpr::_n_args*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___init_asuperexpr, LOCATE_parser_prod, 8730); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___ASuperExpr____n_args(variable[8]) /*ASuperExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperExpr___init_asuperexpr, LOCATE_parser_prod, 8738); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___ASuperExpr____n_args(variable[0]) /*ASuperExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_747: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_760: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_747: while(0);
-  return_label746: while(false);
+  break_760: while(0);
+  return_label759: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8804, LOCATE_parser_prod___AInitExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8812, LOCATE_parser_prod___AInitExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label748: while(false);
+  return_label761: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___n_kwinit__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8811, LOCATE_parser_prod___AInitExpr___n_kwinit__eq};
+  struct trace_t trace = {NULL, NULL, 8819, LOCATE_parser_prod___AInitExpr___n_kwinit__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AInitExpr____n_kwinit(variable[3]) /*AInitExpr::_n_kwinit*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label749: while(false);
+  return_label762: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8844, LOCATE_parser_prod___AInitExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8852, LOCATE_parser_prod___AInitExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8846); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8854); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8850); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8858); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label750;
+    goto return_label763;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[4]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwinit, ID_TKwinit)) /*cast TKwinit*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8860); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInitExpr____n_kwinit(variable[4]) /*AInitExpr::_n_kwinit*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8868); nit_exit(1);}
+      ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AInitExpr____n_kwinit(variable[4]) /*AInitExpr::_n_kwinit*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/ =  NIT_NULL /*null*/;
     }
-    goto return_label750;
+    goto return_label763;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[4]) /*AInitExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[7]) /*AInitExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8870); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[7]) /*AInitExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___replace_child, LOCATE_parser_prod, 8878); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[7]) /*AInitExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label750;
+      goto return_label763;
     }
-    continue_751: while(0);
+    continue_764: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_751: while(0);
-  return_label750: while(false);
+  break_764: while(0);
+  return_label763: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8881, LOCATE_parser_prod___AInitExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8889, LOCATE_parser_prod___AInitExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[3]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[3]) /*AInitExpr::_n_kwinit*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInitExpr____n_args(variable[3]) /*AInitExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_753: while(0);
+    continue_766: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_753: while(0);
-  return_label752: while(false);
+  break_766: while(0);
+  return_label765: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8894, LOCATE_parser_prod___AInitExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 8902, LOCATE_parser_prod___AInitExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[3]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[3]) /*AInitExpr::_n_kwinit*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[4]) /*AInitExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[4]) /*AInitExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_755: while(0);
+    continue_768: while(0);
   }
-  break_755: while(0);
-  return_label754: while(false);
+  break_768: while(0);
+  return_label767: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8819, LOCATE_parser_prod___AInitExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8827, LOCATE_parser_prod___AInitExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInitExpr].i]) return;
-  return_label756: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label769: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInitExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AInitExpr___init_ainitexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8821, LOCATE_parser_prod___AInitExpr___init_ainitexpr};
+  struct trace_t trace = {NULL, NULL, 8829, LOCATE_parser_prod___AInitExpr___init_ainitexpr};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInitExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AInitExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AInitExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[5]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AInitExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AInitExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AInitExpr____n_kwinit(variable[5]) /*AInitExpr::_n_kwinit*/ =  variable[2] /*n_kwinit*/;
+  ATTR_parser_nodes___AInitExpr____n_kwinit(variable[0]) /*AInitExpr::_n_kwinit*/ =  variable[2] /*n_kwinit*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwinit*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwinit*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwinit*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwinit*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwinit*/)( variable[2] /*n_kwinit*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwinit*/)( variable[2] /*n_kwinit*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwinit*/)( variable[2] /*n_kwinit*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___AInitExpr____n_args(variable[5]) /*AInitExpr::_n_args*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_args*/)( variable[3] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___init_ainitexpr, LOCATE_parser_prod, 8838); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___AInitExpr____n_args(variable[8]) /*AInitExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AInitExpr___init_ainitexpr, LOCATE_parser_prod, 8846); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AInitExpr____n_args(variable[0]) /*AInitExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_758: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_771: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_758: while(0);
-  return_label757: while(false);
+  break_771: while(0);
+  return_label770: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AInitExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8912, LOCATE_parser_prod___ABraExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 8920, LOCATE_parser_prod___ABraExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label759: while(false);
+  return_label772: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 8947, LOCATE_parser_prod___ABraExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 8955, LOCATE_parser_prod___ABraExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8949); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8957); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8953); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8961); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label760;
+    goto return_label773;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8963); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8971); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label760;
+      goto return_label773;
     }
-    continue_761: while(0);
+    continue_774: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_761: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
+  break_774: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8975); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___replace_child, LOCATE_parser_prod, 8983); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[7]) /*ASendExpr::_n_closure_defs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label760;
+      goto return_label773;
     }
-    continue_762: while(0);
+    continue_775: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_762: while(0);
-  return_label760: while(false);
+  break_775: while(0);
+  return_label773: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8986, LOCATE_parser_prod___ABraExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 8994, LOCATE_parser_prod___ABraExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[3]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_764: while(0);
+    continue_777: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_764: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[3]) /*ASendExpr::_n_closure_defs*/;
+  break_777: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_765: while(0);
+    continue_778: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_765: while(0);
-  return_label763: while(false);
+  break_778: while(0);
+  return_label776: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 8999, LOCATE_parser_prod___ABraExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9007, LOCATE_parser_prod___ABraExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_767: while(0);
+    continue_780: while(0);
   }
-  break_767: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
+  break_780: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[4]) /*ASendExpr::_n_closure_defs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_768: while(0);
+    continue_781: while(0);
   }
-  break_768: while(0);
-  return_label766: while(false);
+  break_781: while(0);
+  return_label779: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8920, LOCATE_parser_prod___ABraExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 8928, LOCATE_parser_prod___ABraExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraExpr].i]) return;
-  return_label769: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label782: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraExpr___init_abraexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 8922, LOCATE_parser_prod___ABraExpr___init_abraexpr};
+  struct trace_t trace = {NULL, NULL, 8930, LOCATE_parser_prod___ABraExpr___init_abraexpr};
   val_t variable[9];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___ABraExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*ABraExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[5]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___ABraExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABraExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ABraFormExpr____n_args(variable[5]) /*ABraFormExpr::_n_args*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___init_abraexpr, LOCATE_parser_prod, 8935); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[8]) /*ABraFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___init_abraexpr, LOCATE_parser_prod, 8943); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_771: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_784: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_771: while(0);
-  variable[5] = variable[0];
-  variable[6] = NEW_List_list___List___init(); /*new List[PClosureDef]*/
-  ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[5]) /*ASendExpr::_n_closure_defs*/ = variable[6];
-  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_closure_defs*/)( variable[3] /*n_closure_defs*/) /*AbstractArray::iterator*/;
+  break_784: while(0);
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PClosureDef]*/;
+  ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_closure_defs*/)( variable[3] /*n_closure_defs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*ArrayIterator::is_ok*/;
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[6])) break; /*for*/
-    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*ArrayIterator::item*/;
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
     variable[7] = variable[6];
+    /* Register variable[8]: Result */
     variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
-    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___init_abraexpr, LOCATE_parser_prod, 8941); nit_exit(1);}
-    variable[8] = variable[0];
-    variable[8] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[8]) /*ASendExpr::_n_closure_defs*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraExpr___init_abraexpr, LOCATE_parser_prod, 8949); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___ASendExpr____n_closure_defs(variable[0]) /*ASendExpr::_n_closure_defs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
-    variable[8] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[8]) /*PNode::parent=*/;
-    continue_772: while(0);
-    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_785: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  break_772: while(0);
-  return_label770: while(false);
+  break_785: while(0);
+  return_label783: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9021, LOCATE_parser_prod___ABraAssignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 9029, LOCATE_parser_prod___ABraAssignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label773: while(false);
+  return_label786: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9028, LOCATE_parser_prod___ABraAssignExpr___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 9036, LOCATE_parser_prod___ABraAssignExpr___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label774: while(false);
+  return_label787: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9035, LOCATE_parser_prod___ABraAssignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 9043, LOCATE_parser_prod___ABraAssignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label775: while(false);
+  return_label788: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9073, LOCATE_parser_prod___ABraAssignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9081, LOCATE_parser_prod___ABraAssignExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9075); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9083); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9079); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9087); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label776;
+    goto return_label789;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9089); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9097); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label776;
+      goto return_label789;
     }
-    continue_777: while(0);
+    continue_790: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_777: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/;
+  break_790: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9101); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9109); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label776;
+    goto return_label789;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9111); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___replace_child, LOCATE_parser_prod, 9119); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label776;
+    goto return_label789;
   }
-  return_label776: while(false);
+  return_label789: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9120, LOCATE_parser_prod___ABraAssignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9128, LOCATE_parser_prod___ABraAssignExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[3]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_779: while(0);
+    continue_792: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_779: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  break_792: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label778: while(false);
+  return_label791: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9136, LOCATE_parser_prod___ABraAssignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9144, LOCATE_parser_prod___ABraAssignExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_781: while(0);
+    continue_794: while(0);
   }
-  break_781: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  break_794: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label780: while(false);
+  return_label793: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9043, LOCATE_parser_prod___ABraAssignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9051, LOCATE_parser_prod___ABraAssignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraAssignExpr].i]) return;
-  return_label782: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label795: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraAssignExpr___init_abraassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9045, LOCATE_parser_prod___ABraAssignExpr___init_abraassignexpr};
+  struct trace_t trace = {NULL, NULL, 9053, LOCATE_parser_prod___ABraAssignExpr___init_abraassignexpr};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraAssignExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___ABraAssignExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*ABraAssignExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[6]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___ABraAssignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABraAssignExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ABraFormExpr____n_args(variable[6]) /*ABraFormExpr::_n_args*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___init_abraassignexpr, LOCATE_parser_prod, 9059); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[9]) /*ABraFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraAssignExpr___init_abraassignexpr, LOCATE_parser_prod, 9067); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_784: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_797: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
   }
-  break_784: while(0);
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[6]) /*AAssignFormExpr::_n_assign*/ =  variable[3] /*n_assign*/;
+  break_797: while(0);
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[3] /*n_assign*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign*/)( variable[3] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[6]) /*AAssignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)( variable[4] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label783: while(false);
+  return_label796: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9157, LOCATE_parser_prod___ABraReassignExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 9165, LOCATE_parser_prod___ABraReassignExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label785: while(false);
+  return_label798: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___n_assign_op__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9164, LOCATE_parser_prod___ABraReassignExpr___n_assign_op__eq};
+  struct trace_t trace = {NULL, NULL, 9172, LOCATE_parser_prod___ABraReassignExpr___n_assign_op__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label786: while(false);
+  return_label799: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9171, LOCATE_parser_prod___ABraReassignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 9179, LOCATE_parser_prod___ABraReassignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label787: while(false);
+  return_label800: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9209, LOCATE_parser_prod___ABraReassignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9217, LOCATE_parser_prod___ABraReassignExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9211); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9219); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9215); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9223); nit_exit(1);}
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASendExpr____n_expr(variable[4]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label788;
+    goto return_label801;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9225); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9233); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[7]) /*ABraFormExpr::_n_args*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label788;
+      goto return_label801;
     }
-    continue_789: while(0);
+    continue_802: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_789: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/;
+  break_802: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAssignOp, ID_PAssignOp)) /*cast PAssignOp*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9237); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9245); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
     }
-    goto return_label788;
+    goto return_label801;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9247); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___replace_child, LOCATE_parser_prod, 9255); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label788;
+    goto return_label801;
   }
-  return_label788: while(false);
+  return_label801: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9256, LOCATE_parser_prod___ABraReassignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9264, LOCATE_parser_prod___ABraReassignExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[3]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_791: while(0);
+    continue_804: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_791: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  break_804: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label790: while(false);
+  return_label803: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9272, LOCATE_parser_prod___ABraReassignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9280, LOCATE_parser_prod___ABraReassignExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[3]) /*ASendExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[4]) /*ABraFormExpr::_n_args*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_793: while(0);
+    continue_806: while(0);
   }
-  break_793: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  break_806: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label792: while(false);
+  return_label805: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9179, LOCATE_parser_prod___ABraReassignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9187, LOCATE_parser_prod___ABraReassignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraReassignExpr].i]) return;
-  return_label794: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label807: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ABraReassignExpr___init_abrareassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9181, LOCATE_parser_prod___ABraReassignExpr___init_abrareassignexpr};
+  struct trace_t trace = {NULL, NULL, 9189, LOCATE_parser_prod___ABraReassignExpr___init_abrareassignexpr};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraReassignExpr].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___ABraReassignExpr___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*ABraReassignExpr::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___ASendExpr____n_expr(variable[6]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___ABraReassignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ABraReassignExpr::empty_init*/;
+  ATTR_parser_nodes___ASendExpr____n_expr(variable[0]) /*ASendExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ABraFormExpr____n_args(variable[6]) /*ABraFormExpr::_n_args*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*AbstractArray::iterator*/;
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___init_abrareassignexpr, LOCATE_parser_prod, 9195); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[9]) /*ABraFormExpr::_n_args*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ABraReassignExpr___init_abrareassignexpr, LOCATE_parser_prod, 9203); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___ABraFormExpr____n_args(variable[0]) /*ABraFormExpr::_n_args*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_796: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
-  }
-  break_796: while(0);
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[6]) /*AReassignFormExpr::_n_assign_op*/ =  variable[3] /*n_assign_op*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_809: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
+  }
+  break_809: while(0);
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[3] /*n_assign_op*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_assign_op*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_assign_op*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_assign_op*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_assign_op*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_assign_op*/)( variable[3] /*n_assign_op*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[6]) /*AReassignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[4] /*n_value*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_value*/)( variable[4] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_value*/)( variable[4] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label795: while(false);
+  return_label808: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ABraReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AVarExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9293, LOCATE_parser_prod___AVarExpr___n_id__eq};
+void parser_prod___AClosureCallExpr___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9301, LOCATE_parser_prod___AClosureCallExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label797: while(false);
+  return_label810: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AVarExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9314, LOCATE_parser_prod___AVarExpr___replace_child};
-  val_t variable[5];
-  void **closurevariable = NULL;
+void parser_prod___AClosureCallExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 9336, LOCATE_parser_prod___AClosureCallExpr___replace_child};
+  val_t variable[8];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarExpr___replace_child, LOCATE_parser_prod, 9316); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___replace_child, LOCATE_parser_prod, 9338); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarExpr___replace_child, LOCATE_parser_prod, 9320); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___replace_child, LOCATE_parser_prod, 9342); nit_exit(1);}
+      ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label798;
+    goto return_label811;
   }
-  return_label798: while(false);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
+  variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
+    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[5])) break; /*for*/
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
+    variable[6] = variable[5];
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
+    if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
+      variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+      if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___replace_child, LOCATE_parser_prod, 9352); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+        CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      } else { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+        CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
+      }
+      goto return_label811;
+    }
+    continue_812: while(0);
+    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
+  }
+  break_812: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
+  variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
+    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[5])) break; /*for*/
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
+    variable[6] = variable[5];
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
+    if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
+      variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+      if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___replace_child, LOCATE_parser_prod, 9364); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+        CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      } else { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+        CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
+      }
+      goto return_label811;
+    }
+    continue_813: while(0);
+    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
+  }
+  break_813: while(0);
+  return_label811: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AVarExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9329, LOCATE_parser_prod___AVarExpr___visit_all};
-  val_t variable[4];
-  void **closurevariable = NULL;
+void parser_prod___AClosureCallExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9375, LOCATE_parser_prod___AClosureCallExpr___visit_all};
+  val_t variable[6];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label799: while(false);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
+    if (!UNTAG_Bool(variable[4])) break; /*for*/
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
+    variable[5] = variable[4];
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
+    continue_815: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
+  }
+  break_815: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
+    if (!UNTAG_Bool(variable[4])) break; /*for*/
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
+    variable[5] = variable[4];
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
+    continue_816: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
+  }
+  break_816: while(0);
+  return_label814: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AVarExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9336, LOCATE_parser_prod___AVarExpr___visit_all_reverse};
-  val_t variable[4];
-  void **closurevariable = NULL;
+void parser_prod___AClosureCallExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9388, LOCATE_parser_prod___AClosureCallExpr___visit_all_reverse};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label800: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void parser_prod___AVarExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9301, LOCATE_parser_prod___AVarExpr___empty_init};
-  val_t variable[2];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_parser_prod;
-  variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i]) return;
-  return_label801: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i] = 1;
-  tracehead = trace.prev;
-  return;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  variable[3] = variable[4];
+  while (true) { /*while*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
+    if (!UNTAG_Bool(variable[4])) break; /* while*/
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
+    variable[3] = variable[4] /*i=*/;
+    continue_818: while(0);
+  }
+  break_818: while(0);
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  variable[3] = variable[4];
+  while (true) { /*while*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
+    if (!UNTAG_Bool(variable[4])) break; /* while*/
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
+    variable[3] = variable[4] /*i=*/;
+    continue_819: while(0);
+  }
+  break_819: while(0);
+  return_label817: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AClosureCallExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 9309, LOCATE_parser_prod___AClosureCallExpr___empty_init};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureCallExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label820: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureCallExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AClosureCallExpr___init_aclosurecallexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 9311, LOCATE_parser_prod___AClosureCallExpr___init_aclosurecallexpr};
+  val_t variable[9];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureCallExpr].i]) return;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AClosureCallExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AClosureCallExpr::empty_init*/;
+  ATTR_parser_nodes___AClosureCallExpr____n_id(variable[0]) /*AClosureCallExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
+  }
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_args*/)( variable[2] /*n_args*/) /*Collection::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[6])) break; /*for*/
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
+    variable[7] = variable[6];
+    /* Register variable[8]: Result */
+    variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___init_aclosurecallexpr, LOCATE_parser_prod, 9324); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AClosureCallExpr____n_args(variable[0]) /*AClosureCallExpr::_n_args*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_822: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
+  }
+  break_822: while(0);
+  /* Register variable[5]: Result */
+  variable[5] = NEW_List_list___List___init() /*new List[PClosureDef]*/;
+  ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/ = variable[5];
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator( variable[3] /*n_closure_defs*/)( variable[3] /*n_closure_defs*/) /*Collection::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[6])) break; /*for*/
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
+    variable[7] = variable[6];
+    /* Register variable[8]: Result */
+    variable[8] = TAG_Bool(( variable[7] /*n*/==NIT_NULL) || VAL_ISA( variable[7] /*n*/, COLOR_PClosureDef, ID_PClosureDef)) /*cast PClosureDef*/;
+    if (!UNTAG_Bool(variable[8])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureCallExpr___init_aclosurecallexpr, LOCATE_parser_prod, 9330); nit_exit(1);}
+    /* Register variable[8]: Result */
+    variable[8] = ATTR_parser_nodes___AClosureCallExpr____n_closure_defs(variable[0]) /*AClosureCallExpr::_n_closure_defs*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*n*/) /*IndexedCollection::add*/;
+    CALL_parser_prod___PNode___parent__eq( variable[7] /*n*/)( variable[7] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_823: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
+  }
+  break_823: while(0);
+  return_label821: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureCallExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AVarExpr___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9410, LOCATE_parser_prod___AVarExpr___n_id__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label824: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AVarExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 9431, LOCATE_parser_prod___AVarExpr___replace_child};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarExpr___replace_child, LOCATE_parser_prod, 9433); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarExpr___replace_child, LOCATE_parser_prod, 9437); nit_exit(1);}
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label825;
+  }
+  return_label825: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AVarExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9446, LOCATE_parser_prod___AVarExpr___visit_all};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label826: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AVarExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 9453, LOCATE_parser_prod___AVarExpr___visit_all_reverse};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label827: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AVarExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 9418, LOCATE_parser_prod___AVarExpr___empty_init};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label828: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
 }
 void parser_prod___AVarExpr___init_avarexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9303, LOCATE_parser_prod___AVarExpr___init_avarexpr};
+  struct trace_t trace = {NULL, NULL, 9420, LOCATE_parser_prod___AVarExpr___init_avarexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AVarExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AVarExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AVarExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AVarExpr::empty_init*/;
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label802: while(false);
+  return_label829: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9344, LOCATE_parser_prod___AVarAssignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 9461, LOCATE_parser_prod___AVarAssignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label803: while(false);
+  return_label830: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___n_assign__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9351, LOCATE_parser_prod___AVarAssignExpr___n_assign__eq};
+  struct trace_t trace = {NULL, NULL, 9468, LOCATE_parser_prod___AVarAssignExpr___n_assign__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label804: while(false);
+  return_label831: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9358, LOCATE_parser_prod___AVarAssignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 9475, LOCATE_parser_prod___AVarAssignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label805: while(false);
+  return_label832: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9389, LOCATE_parser_prod___AVarAssignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9506, LOCATE_parser_prod___AVarAssignExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9391); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9508); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9395); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9512); nit_exit(1);}
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label806;
+    goto return_label833;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAssign, ID_TAssign)) /*cast TAssign*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9405); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9522); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[4]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  NIT_NULL /*null*/;
     }
-    goto return_label806;
+    goto return_label833;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9415); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarAssignExpr___replace_child, LOCATE_parser_prod, 9532); nit_exit(1);}
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[4]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label806;
+    goto return_label833;
   }
-  return_label806: while(false);
+  return_label833: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9424, LOCATE_parser_prod___AVarAssignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9541, LOCATE_parser_prod___AVarAssignExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label807: while(false);
+  return_label834: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9437, LOCATE_parser_prod___AVarAssignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9554, LOCATE_parser_prod___AVarAssignExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[3]) /*AAssignFormExpr::_n_assign*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[3]) /*AAssignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label808: while(false);
+  return_label835: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9366, LOCATE_parser_prod___AVarAssignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9483, LOCATE_parser_prod___AVarAssignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarAssignExpr].i]) return;
-  return_label809: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label836: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarAssignExpr___init_avarassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9368, LOCATE_parser_prod___AVarAssignExpr___init_avarassignexpr};
+  struct trace_t trace = {NULL, NULL, 9485, LOCATE_parser_prod___AVarAssignExpr___init_avarassignexpr};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarAssignExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AVarAssignExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AVarAssignExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[5]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AVarAssignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AVarAssignExpr::empty_init*/;
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[5]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*n_assign*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_assign(variable[0]) /*AAssignFormExpr::_n_assign*/ =  variable[2] /*n_assign*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_assign*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_assign*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_assign*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_assign*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign*/)( variable[2] /*n_assign*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[5]) /*AAssignFormExpr::_n_value*/ =  variable[3] /*n_value*/;
+  ATTR_parser_nodes___AAssignFormExpr____n_value(variable[0]) /*AAssignFormExpr::_n_value*/ =  variable[3] /*n_value*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_value*/)( variable[3] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_value*/)( variable[3] /*n_value*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_value*/)( variable[3] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label810: while(false);
+  return_label837: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarAssignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___n_id__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9451, LOCATE_parser_prod___AVarReassignExpr___n_id__eq};
+  struct trace_t trace = {NULL, NULL, 9568, LOCATE_parser_prod___AVarReassignExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label811: while(false);
+  return_label838: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___n_assign_op__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9458, LOCATE_parser_prod___AVarReassignExpr___n_assign_op__eq};
+  struct trace_t trace = {NULL, NULL, 9575, LOCATE_parser_prod___AVarReassignExpr___n_assign_op__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label812: while(false);
+  return_label839: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___n_value__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9465, LOCATE_parser_prod___AVarReassignExpr___n_value__eq};
+  struct trace_t trace = {NULL, NULL, 9582, LOCATE_parser_prod___AVarReassignExpr___n_value__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label813: while(false);
+  return_label840: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9496, LOCATE_parser_prod___AVarReassignExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9613, LOCATE_parser_prod___AVarReassignExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9498); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9615); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9502); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9619); nit_exit(1);}
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AVarFormExpr____n_id(variable[4]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label814;
+    goto return_label841;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PAssignOp, ID_PAssignOp)) /*cast PAssignOp*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9512); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9629); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[4]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  NIT_NULL /*null*/;
     }
-    goto return_label814;
+    goto return_label841;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9522); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AVarReassignExpr___replace_child, LOCATE_parser_prod, 9639); nit_exit(1);}
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[4]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  NIT_NULL /*null*/;
     }
-    goto return_label814;
+    goto return_label841;
   }
-  return_label814: while(false);
+  return_label841: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9531, LOCATE_parser_prod___AVarReassignExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9648, LOCATE_parser_prod___AVarReassignExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label815: while(false);
+  return_label842: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9544, LOCATE_parser_prod___AVarReassignExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9661, LOCATE_parser_prod___AVarReassignExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[3]) /*AVarFormExpr::_n_id*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[3]) /*AReassignFormExpr::_n_assign_op*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[3]) /*AReassignFormExpr::_n_value*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label816: while(false);
+  return_label843: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9473, LOCATE_parser_prod___AVarReassignExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9590, LOCATE_parser_prod___AVarReassignExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarReassignExpr].i]) return;
-  return_label817: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label844: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AVarReassignExpr___init_avarreassignexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9475, LOCATE_parser_prod___AVarReassignExpr___init_avarreassignexpr};
+  struct trace_t trace = {NULL, NULL, 9592, LOCATE_parser_prod___AVarReassignExpr___init_avarreassignexpr};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarReassignExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AVarReassignExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AVarReassignExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AVarFormExpr____n_id(variable[5]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AVarReassignExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AVarReassignExpr::empty_init*/;
+  ATTR_parser_nodes___AVarFormExpr____n_id(variable[0]) /*AVarFormExpr::_n_id*/ =  variable[1] /*n_id*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_id*/)( variable[1] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_id*/)( variable[1] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[5]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*n_assign_op*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_assign_op(variable[0]) /*AReassignFormExpr::_n_assign_op*/ =  variable[2] /*n_assign_op*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_assign_op*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_assign_op*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_assign_op*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_assign_op*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_assign_op*/)( variable[2] /*n_assign_op*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign_op*/)( variable[2] /*n_assign_op*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_assign_op*/)( variable[2] /*n_assign_op*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[5]) /*AReassignFormExpr::_n_value*/ =  variable[3] /*n_value*/;
+  ATTR_parser_nodes___AReassignFormExpr____n_value(variable[0]) /*AReassignFormExpr::_n_value*/ =  variable[3] /*n_value*/;
+  /* Register variable[5]: Result */
   variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_value*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_value*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_value*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_value*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_value*/)( variable[3] /*n_value*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_value*/)( variable[3] /*n_value*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_value*/)( variable[3] /*n_value*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label818: while(false);
+  return_label845: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AVarReassignExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9558, LOCATE_parser_prod___ARangeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 9675, LOCATE_parser_prod___ARangeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label819: while(false);
+  return_label846: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9565, LOCATE_parser_prod___ARangeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 9682, LOCATE_parser_prod___ARangeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label820: while(false);
+  return_label847: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9591, LOCATE_parser_prod___ARangeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9708, LOCATE_parser_prod___ARangeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9593); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9710); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9597); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9714); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label821;
+    goto return_label848;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9607); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ARangeExpr___replace_child, LOCATE_parser_prod, 9724); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label821;
+    goto return_label848;
   }
-  return_label821: while(false);
+  return_label848: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9616, LOCATE_parser_prod___ARangeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9733, LOCATE_parser_prod___ARangeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label822: while(false);
+  return_label849: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9626, LOCATE_parser_prod___ARangeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9743, LOCATE_parser_prod___ARangeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label823: while(false);
+  return_label850: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9573, LOCATE_parser_prod___ARangeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9690, LOCATE_parser_prod___ARangeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ARangeExpr].i]) return;
-  return_label824: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label851: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ARangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ARangeExpr___init_arangeexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9575, LOCATE_parser_prod___ARangeExpr___init_arangeexpr};
+  struct trace_t trace = {NULL, NULL, 9692, LOCATE_parser_prod___ARangeExpr___init_arangeexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ARangeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ARangeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ARangeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ARangeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ARangeExpr::empty_init*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label825: while(false);
+  return_label852: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ARangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9637, LOCATE_parser_prod___ACrangeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 9754, LOCATE_parser_prod___ACrangeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label826: while(false);
+  return_label853: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9644, LOCATE_parser_prod___ACrangeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 9761, LOCATE_parser_prod___ACrangeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label827: while(false);
+  return_label854: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9670, LOCATE_parser_prod___ACrangeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9787, LOCATE_parser_prod___ACrangeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9672); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9789); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9676); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9793); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label828;
+    goto return_label855;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9686); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACrangeExpr___replace_child, LOCATE_parser_prod, 9803); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label828;
+    goto return_label855;
   }
-  return_label828: while(false);
+  return_label855: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9695, LOCATE_parser_prod___ACrangeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9812, LOCATE_parser_prod___ACrangeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label829: while(false);
+  return_label856: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9705, LOCATE_parser_prod___ACrangeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9822, LOCATE_parser_prod___ACrangeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label830: while(false);
+  return_label857: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9652, LOCATE_parser_prod___ACrangeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9769, LOCATE_parser_prod___ACrangeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACrangeExpr].i]) return;
-  return_label831: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label858: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACrangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACrangeExpr___init_acrangeexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9654, LOCATE_parser_prod___ACrangeExpr___init_acrangeexpr};
+  struct trace_t trace = {NULL, NULL, 9771, LOCATE_parser_prod___ACrangeExpr___init_acrangeexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACrangeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___ACrangeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*ACrangeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___ACrangeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ACrangeExpr::empty_init*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label832: while(false);
+  return_label859: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACrangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9716, LOCATE_parser_prod___AOrangeExpr___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 9833, LOCATE_parser_prod___AOrangeExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label833: while(false);
+  return_label860: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___n_expr2__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9723, LOCATE_parser_prod___AOrangeExpr___n_expr2__eq};
+  struct trace_t trace = {NULL, NULL, 9840, LOCATE_parser_prod___AOrangeExpr___n_expr2__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label834: while(false);
+  return_label861: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9749, LOCATE_parser_prod___AOrangeExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9866, LOCATE_parser_prod___AOrangeExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9751); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9868); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9755); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9872); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label835;
+    goto return_label862;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9765); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AOrangeExpr___replace_child, LOCATE_parser_prod, 9882); nit_exit(1);}
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  NIT_NULL /*null*/;
     }
-    goto return_label835;
+    goto return_label862;
   }
-  return_label835: while(false);
+  return_label862: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9774, LOCATE_parser_prod___AOrangeExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9891, LOCATE_parser_prod___AOrangeExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label836: while(false);
+  return_label863: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9784, LOCATE_parser_prod___AOrangeExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9901, LOCATE_parser_prod___AOrangeExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[3]) /*ARangeExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[3]) /*ARangeExpr::_n_expr2*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label837: while(false);
+  return_label864: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9731, LOCATE_parser_prod___AOrangeExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9848, LOCATE_parser_prod___AOrangeExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrangeExpr].i]) return;
-  return_label838: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label865: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AOrangeExpr___init_aorangeexpr(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9733, LOCATE_parser_prod___AOrangeExpr___init_aorangeexpr};
+  struct trace_t trace = {NULL, NULL, 9850, LOCATE_parser_prod___AOrangeExpr___init_aorangeexpr};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrangeExpr].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AOrangeExpr___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AOrangeExpr::empty_init*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr(variable[4]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AOrangeExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AOrangeExpr::empty_init*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr(variable[0]) /*ARangeExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[4] = variable[0];
-  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[4]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  ATTR_parser_nodes___ARangeExpr____n_expr2(variable[0]) /*ARangeExpr::_n_expr2*/ =  variable[2] /*n_expr2*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr2*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr2*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr2*/)( variable[2] /*n_expr2*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label839: while(false);
+  return_label866: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AOrangeExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AArrayExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9811, LOCATE_parser_prod___AArrayExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9928, LOCATE_parser_prod___AArrayExpr___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___replace_child, LOCATE_parser_prod, 9813); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[4]) /*AArrayExpr::_n_exprs*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___replace_child, LOCATE_parser_prod, 9930); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[7]) /*AArrayExpr::_n_exprs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___replace_child, LOCATE_parser_prod, 9817); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[7]) /*AArrayExpr::_n_exprs*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___replace_child, LOCATE_parser_prod, 9934); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[7]) /*AArrayExpr::_n_exprs*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label840;
+      goto return_label867;
     }
-    continue_841: while(0);
+    continue_868: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_841: while(0);
-  return_label840: while(false);
+  break_868: while(0);
+  return_label867: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AArrayExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9828, LOCATE_parser_prod___AArrayExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 9945, LOCATE_parser_prod___AArrayExpr___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[3]) /*AArrayExpr::_n_exprs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_843: while(0);
+    continue_870: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_843: while(0);
-  return_label842: while(false);
+  break_870: while(0);
+  return_label869: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AArrayExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9835, LOCATE_parser_prod___AArrayExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 9952, LOCATE_parser_prod___AArrayExpr___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[4]) /*AArrayExpr::_n_exprs*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[4]) /*AArrayExpr::_n_exprs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_845: while(0);
+    continue_872: while(0);
   }
-  break_845: while(0);
-  return_label844: while(false);
+  break_872: while(0);
+  return_label871: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AArrayExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9796, LOCATE_parser_prod___AArrayExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9913, LOCATE_parser_prod___AArrayExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AArrayExpr].i]) return;
-  return_label846: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label873: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AArrayExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AArrayExpr___init_aarrayexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9798, LOCATE_parser_prod___AArrayExpr___init_aarrayexpr};
+  struct trace_t trace = {NULL, NULL, 9915, LOCATE_parser_prod___AArrayExpr___init_aarrayexpr};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AArrayExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AArrayExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AArrayExpr::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___AArrayExpr____n_exprs(variable[3]) /*AArrayExpr::_n_exprs*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_exprs*/)( variable[1] /*n_exprs*/) /*AbstractArray::iterator*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AArrayExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AArrayExpr::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_exprs*/)( variable[1] /*n_exprs*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
+    /* Register variable[6]: Result */
     variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___init_aarrayexpr, LOCATE_parser_prod, 9805); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[6]) /*AArrayExpr::_n_exprs*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AArrayExpr___init_aarrayexpr, LOCATE_parser_prod, 9922); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___AArrayExpr____n_exprs(variable[0]) /*AArrayExpr::_n_exprs*/;
     CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_848: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_875: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  break_848: while(0);
-  return_label847: while(false);
+  break_875: while(0);
+  return_label874: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AArrayExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___n_kwself__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9847, LOCATE_parser_prod___ASelfExpr___n_kwself__eq};
+  struct trace_t trace = {NULL, NULL, 9964, LOCATE_parser_prod___ASelfExpr___n_kwself__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label849: while(false);
+  return_label876: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9868, LOCATE_parser_prod___ASelfExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 9985, LOCATE_parser_prod___ASelfExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASelfExpr___replace_child, LOCATE_parser_prod, 9870); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[4]) /*ASelfExpr::_n_kwself*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASelfExpr___replace_child, LOCATE_parser_prod, 9987); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwself, ID_TKwself)) /*cast TKwself*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASelfExpr___replace_child, LOCATE_parser_prod, 9874); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASelfExpr____n_kwself(variable[4]) /*ASelfExpr::_n_kwself*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASelfExpr___replace_child, LOCATE_parser_prod, 9991); nit_exit(1);}
+      ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ASelfExpr____n_kwself(variable[4]) /*ASelfExpr::_n_kwself*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/ =  NIT_NULL /*null*/;
     }
-    goto return_label850;
+    goto return_label877;
   }
-  return_label850: while(false);
+  return_label877: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9883, LOCATE_parser_prod___ASelfExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10000, LOCATE_parser_prod___ASelfExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label851: while(false);
+  return_label878: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9890, LOCATE_parser_prod___ASelfExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10007, LOCATE_parser_prod___ASelfExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label852: while(false);
+  return_label879: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9855, LOCATE_parser_prod___ASelfExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 9972, LOCATE_parser_prod___ASelfExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASelfExpr].i]) return;
-  return_label853: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label880: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASelfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ASelfExpr___init_aselfexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9857, LOCATE_parser_prod___ASelfExpr___init_aselfexpr};
+  struct trace_t trace = {NULL, NULL, 9974, LOCATE_parser_prod___ASelfExpr___init_aselfexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASelfExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ASelfExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ASelfExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ASelfExpr____n_kwself(variable[3]) /*ASelfExpr::_n_kwself*/ =  variable[1] /*n_kwself*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ASelfExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASelfExpr::empty_init*/;
+  ATTR_parser_nodes___ASelfExpr____n_kwself(variable[0]) /*ASelfExpr::_n_kwself*/ =  variable[1] /*n_kwself*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwself*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwself*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwself*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwself*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwself*/)( variable[1] /*n_kwself*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwself*/)( variable[1] /*n_kwself*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwself*/)( variable[1] /*n_kwself*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label854: while(false);
+  return_label881: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASelfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImplicitSelfExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9906, LOCATE_parser_prod___AImplicitSelfExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10023, LOCATE_parser_prod___AImplicitSelfExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImplicitSelfExpr___replace_child, LOCATE_parser_prod, 9908); nit_exit(1);}
-  return_label855: while(false);
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AImplicitSelfExpr___replace_child, LOCATE_parser_prod, 10025); nit_exit(1);}
+  return_label882: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImplicitSelfExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9911, LOCATE_parser_prod___AImplicitSelfExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10028, LOCATE_parser_prod___AImplicitSelfExpr___visit_all};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label856: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label883: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImplicitSelfExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9915, LOCATE_parser_prod___AImplicitSelfExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10032, LOCATE_parser_prod___AImplicitSelfExpr___visit_all_reverse};
   val_t variable[3];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label857: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  return_label884: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImplicitSelfExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9899, LOCATE_parser_prod___AImplicitSelfExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10016, LOCATE_parser_prod___AImplicitSelfExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImplicitSelfExpr].i]) return;
-  return_label858: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label885: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImplicitSelfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AImplicitSelfExpr___init_aimplicitselfexpr(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9901, LOCATE_parser_prod___AImplicitSelfExpr___init_aimplicitselfexpr};
-  val_t variable[3];
-  void **closurevariable = NULL;
+  struct trace_t trace = {NULL, NULL, 10018, LOCATE_parser_prod___AImplicitSelfExpr___init_aimplicitselfexpr};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImplicitSelfExpr].i]) return;
-  variable[2] = variable[0];
-  CALL_parser_prod___AImplicitSelfExpr___empty_init(variable[2])(variable[2], init_table /*YYY*/) /*AImplicitSelfExpr::empty_init*/;
-  return_label859: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  CALL_parser_prod___AImplicitSelfExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AImplicitSelfExpr::empty_init*/;
+  return_label886: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AImplicitSelfExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___n_kwtrue__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9920, LOCATE_parser_prod___ATrueExpr___n_kwtrue__eq};
+  struct trace_t trace = {NULL, NULL, 10037, LOCATE_parser_prod___ATrueExpr___n_kwtrue__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label860: while(false);
+  return_label887: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9941, LOCATE_parser_prod___ATrueExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10058, LOCATE_parser_prod___ATrueExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATrueExpr___replace_child, LOCATE_parser_prod, 9943); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[4]) /*ATrueExpr::_n_kwtrue*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATrueExpr___replace_child, LOCATE_parser_prod, 10060); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwtrue, ID_TKwtrue)) /*cast TKwtrue*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATrueExpr___replace_child, LOCATE_parser_prod, 9947); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[4]) /*ATrueExpr::_n_kwtrue*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ATrueExpr___replace_child, LOCATE_parser_prod, 10064); nit_exit(1);}
+      ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[4]) /*ATrueExpr::_n_kwtrue*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/ =  NIT_NULL /*null*/;
     }
-    goto return_label861;
+    goto return_label888;
   }
-  return_label861: while(false);
+  return_label888: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9956, LOCATE_parser_prod___ATrueExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10073, LOCATE_parser_prod___ATrueExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label862: while(false);
+  return_label889: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9963, LOCATE_parser_prod___ATrueExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10080, LOCATE_parser_prod___ATrueExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label863: while(false);
+  return_label890: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9928, LOCATE_parser_prod___ATrueExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10045, LOCATE_parser_prod___ATrueExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATrueExpr].i]) return;
-  return_label864: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label891: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATrueExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ATrueExpr___init_atrueexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9930, LOCATE_parser_prod___ATrueExpr___init_atrueexpr};
+  struct trace_t trace = {NULL, NULL, 10047, LOCATE_parser_prod___ATrueExpr___init_atrueexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATrueExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ATrueExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ATrueExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[3]) /*ATrueExpr::_n_kwtrue*/ =  variable[1] /*n_kwtrue*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ATrueExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ATrueExpr::empty_init*/;
+  ATTR_parser_nodes___ATrueExpr____n_kwtrue(variable[0]) /*ATrueExpr::_n_kwtrue*/ =  variable[1] /*n_kwtrue*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwtrue*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwtrue*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwtrue*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwtrue*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwtrue*/)( variable[1] /*n_kwtrue*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwtrue*/)( variable[1] /*n_kwtrue*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwtrue*/)( variable[1] /*n_kwtrue*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label865: while(false);
+  return_label892: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ATrueExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___n_kwfalse__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 9971, LOCATE_parser_prod___AFalseExpr___n_kwfalse__eq};
+  struct trace_t trace = {NULL, NULL, 10088, LOCATE_parser_prod___AFalseExpr___n_kwfalse__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label866: while(false);
+  return_label893: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 9992, LOCATE_parser_prod___AFalseExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10109, LOCATE_parser_prod___AFalseExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFalseExpr___replace_child, LOCATE_parser_prod, 9994); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[4]) /*AFalseExpr::_n_kwfalse*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFalseExpr___replace_child, LOCATE_parser_prod, 10111); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwfalse, ID_TKwfalse)) /*cast TKwfalse*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFalseExpr___replace_child, LOCATE_parser_prod, 9998); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[4]) /*AFalseExpr::_n_kwfalse*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFalseExpr___replace_child, LOCATE_parser_prod, 10115); nit_exit(1);}
+      ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[4]) /*AFalseExpr::_n_kwfalse*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/ =  NIT_NULL /*null*/;
     }
-    goto return_label867;
+    goto return_label894;
   }
-  return_label867: while(false);
+  return_label894: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10007, LOCATE_parser_prod___AFalseExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10124, LOCATE_parser_prod___AFalseExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label868: while(false);
+  return_label895: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10014, LOCATE_parser_prod___AFalseExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10131, LOCATE_parser_prod___AFalseExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label869: while(false);
+  return_label896: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9979, LOCATE_parser_prod___AFalseExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10096, LOCATE_parser_prod___AFalseExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFalseExpr].i]) return;
-  return_label870: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label897: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFalseExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFalseExpr___init_afalseexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 9981, LOCATE_parser_prod___AFalseExpr___init_afalseexpr};
+  struct trace_t trace = {NULL, NULL, 10098, LOCATE_parser_prod___AFalseExpr___init_afalseexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFalseExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AFalseExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AFalseExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[3]) /*AFalseExpr::_n_kwfalse*/ =  variable[1] /*n_kwfalse*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AFalseExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AFalseExpr::empty_init*/;
+  ATTR_parser_nodes___AFalseExpr____n_kwfalse(variable[0]) /*AFalseExpr::_n_kwfalse*/ =  variable[1] /*n_kwfalse*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwfalse*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwfalse*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwfalse*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwfalse*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwfalse*/)( variable[1] /*n_kwfalse*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwfalse*/)( variable[1] /*n_kwfalse*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwfalse*/)( variable[1] /*n_kwfalse*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label871: while(false);
+  return_label898: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFalseExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___n_kwnull__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10022, LOCATE_parser_prod___ANullExpr___n_kwnull__eq};
+  struct trace_t trace = {NULL, NULL, 10139, LOCATE_parser_prod___ANullExpr___n_kwnull__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label872: while(false);
+  return_label899: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10043, LOCATE_parser_prod___ANullExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10160, LOCATE_parser_prod___ANullExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANullExpr___replace_child, LOCATE_parser_prod, 10045); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[4]) /*ANullExpr::_n_kwnull*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANullExpr___replace_child, LOCATE_parser_prod, 10162); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnull, ID_TKwnull)) /*cast TKwnull*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANullExpr___replace_child, LOCATE_parser_prod, 10049); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANullExpr____n_kwnull(variable[4]) /*ANullExpr::_n_kwnull*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ANullExpr___replace_child, LOCATE_parser_prod, 10166); nit_exit(1);}
+      ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ANullExpr____n_kwnull(variable[4]) /*ANullExpr::_n_kwnull*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/ =  NIT_NULL /*null*/;
     }
-    goto return_label873;
+    goto return_label900;
   }
-  return_label873: while(false);
+  return_label900: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10058, LOCATE_parser_prod___ANullExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10175, LOCATE_parser_prod___ANullExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label874: while(false);
+  return_label901: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10065, LOCATE_parser_prod___ANullExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10182, LOCATE_parser_prod___ANullExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label875: while(false);
+  return_label902: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10030, LOCATE_parser_prod___ANullExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10147, LOCATE_parser_prod___ANullExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANullExpr].i]) return;
-  return_label876: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label903: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANullExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ANullExpr___init_anullexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10032, LOCATE_parser_prod___ANullExpr___init_anullexpr};
+  struct trace_t trace = {NULL, NULL, 10149, LOCATE_parser_prod___ANullExpr___init_anullexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANullExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ANullExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ANullExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ANullExpr____n_kwnull(variable[3]) /*ANullExpr::_n_kwnull*/ =  variable[1] /*n_kwnull*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ANullExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ANullExpr::empty_init*/;
+  ATTR_parser_nodes___ANullExpr____n_kwnull(variable[0]) /*ANullExpr::_n_kwnull*/ =  variable[1] /*n_kwnull*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwnull*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwnull*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwnull*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwnull*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwnull*/)( variable[1] /*n_kwnull*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnull*/)( variable[1] /*n_kwnull*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwnull*/)( variable[1] /*n_kwnull*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label877: while(false);
+  return_label904: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ANullExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___n_number__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10073, LOCATE_parser_prod___AIntExpr___n_number__eq};
+  struct trace_t trace = {NULL, NULL, 10190, LOCATE_parser_prod___AIntExpr___n_number__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label878: while(false);
+  return_label905: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10094, LOCATE_parser_prod___AIntExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10211, LOCATE_parser_prod___AIntExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntExpr___replace_child, LOCATE_parser_prod, 10096); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AIntExpr____n_number(variable[4]) /*AIntExpr::_n_number*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntExpr___replace_child, LOCATE_parser_prod, 10213); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TNumber, ID_TNumber)) /*cast TNumber*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntExpr___replace_child, LOCATE_parser_prod, 10100); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIntExpr____n_number(variable[4]) /*AIntExpr::_n_number*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIntExpr___replace_child, LOCATE_parser_prod, 10217); nit_exit(1);}
+      ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AIntExpr____n_number(variable[4]) /*AIntExpr::_n_number*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/ =  NIT_NULL /*null*/;
     }
-    goto return_label879;
+    goto return_label906;
   }
-  return_label879: while(false);
+  return_label906: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10109, LOCATE_parser_prod___AIntExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10226, LOCATE_parser_prod___AIntExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label880: while(false);
+  return_label907: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10116, LOCATE_parser_prod___AIntExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10233, LOCATE_parser_prod___AIntExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label881: while(false);
+  return_label908: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10081, LOCATE_parser_prod___AIntExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10198, LOCATE_parser_prod___AIntExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntExpr].i]) return;
-  return_label882: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label909: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AIntExpr___init_aintexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10083, LOCATE_parser_prod___AIntExpr___init_aintexpr};
+  struct trace_t trace = {NULL, NULL, 10200, LOCATE_parser_prod___AIntExpr___init_aintexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AIntExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AIntExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AIntExpr____n_number(variable[3]) /*AIntExpr::_n_number*/ =  variable[1] /*n_number*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AIntExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIntExpr::empty_init*/;
+  ATTR_parser_nodes___AIntExpr____n_number(variable[0]) /*AIntExpr::_n_number*/ =  variable[1] /*n_number*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_number*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_number*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_number*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_number*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_number*/)( variable[1] /*n_number*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_number*/)( variable[1] /*n_number*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_number*/)( variable[1] /*n_number*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label883: while(false);
+  return_label910: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIntExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___n_float__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10124, LOCATE_parser_prod___AFloatExpr___n_float__eq};
+  struct trace_t trace = {NULL, NULL, 10241, LOCATE_parser_prod___AFloatExpr___n_float__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label884: while(false);
+  return_label911: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10145, LOCATE_parser_prod___AFloatExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10262, LOCATE_parser_prod___AFloatExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFloatExpr___replace_child, LOCATE_parser_prod, 10147); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AFloatExpr____n_float(variable[4]) /*AFloatExpr::_n_float*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFloatExpr___replace_child, LOCATE_parser_prod, 10264); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TFloat, ID_TFloat)) /*cast TFloat*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFloatExpr___replace_child, LOCATE_parser_prod, 10151); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFloatExpr____n_float(variable[4]) /*AFloatExpr::_n_float*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AFloatExpr___replace_child, LOCATE_parser_prod, 10268); nit_exit(1);}
+      ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AFloatExpr____n_float(variable[4]) /*AFloatExpr::_n_float*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/ =  NIT_NULL /*null*/;
     }
-    goto return_label885;
+    goto return_label912;
   }
-  return_label885: while(false);
+  return_label912: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10160, LOCATE_parser_prod___AFloatExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10277, LOCATE_parser_prod___AFloatExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label886: while(false);
+  return_label913: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10167, LOCATE_parser_prod___AFloatExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10284, LOCATE_parser_prod___AFloatExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label887: while(false);
+  return_label914: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10132, LOCATE_parser_prod___AFloatExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10249, LOCATE_parser_prod___AFloatExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFloatExpr].i]) return;
-  return_label888: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label915: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFloatExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AFloatExpr___init_afloatexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10134, LOCATE_parser_prod___AFloatExpr___init_afloatexpr};
+  struct trace_t trace = {NULL, NULL, 10251, LOCATE_parser_prod___AFloatExpr___init_afloatexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFloatExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AFloatExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AFloatExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AFloatExpr____n_float(variable[3]) /*AFloatExpr::_n_float*/ =  variable[1] /*n_float*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AFloatExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AFloatExpr::empty_init*/;
+  ATTR_parser_nodes___AFloatExpr____n_float(variable[0]) /*AFloatExpr::_n_float*/ =  variable[1] /*n_float*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_float*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_float*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_float*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_float*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_float*/)( variable[1] /*n_float*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_float*/)( variable[1] /*n_float*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_float*/)( variable[1] /*n_float*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label889: while(false);
+  return_label916: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AFloatExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___n_char__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10175, LOCATE_parser_prod___ACharExpr___n_char__eq};
+  struct trace_t trace = {NULL, NULL, 10292, LOCATE_parser_prod___ACharExpr___n_char__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label890: while(false);
+  return_label917: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10196, LOCATE_parser_prod___ACharExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10313, LOCATE_parser_prod___ACharExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACharExpr___replace_child, LOCATE_parser_prod, 10198); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ACharExpr____n_char(variable[4]) /*ACharExpr::_n_char*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACharExpr___replace_child, LOCATE_parser_prod, 10315); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TChar, ID_TChar)) /*cast TChar*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACharExpr___replace_child, LOCATE_parser_prod, 10202); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACharExpr____n_char(variable[4]) /*ACharExpr::_n_char*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ACharExpr___replace_child, LOCATE_parser_prod, 10319); nit_exit(1);}
+      ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___ACharExpr____n_char(variable[4]) /*ACharExpr::_n_char*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/ =  NIT_NULL /*null*/;
     }
-    goto return_label891;
+    goto return_label918;
   }
-  return_label891: while(false);
+  return_label918: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10211, LOCATE_parser_prod___ACharExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10328, LOCATE_parser_prod___ACharExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label892: while(false);
+  return_label919: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10218, LOCATE_parser_prod___ACharExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10335, LOCATE_parser_prod___ACharExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label893: while(false);
+  return_label920: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10183, LOCATE_parser_prod___ACharExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10300, LOCATE_parser_prod___ACharExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACharExpr].i]) return;
-  return_label894: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label921: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACharExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ACharExpr___init_acharexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10185, LOCATE_parser_prod___ACharExpr___init_acharexpr};
+  struct trace_t trace = {NULL, NULL, 10302, LOCATE_parser_prod___ACharExpr___init_acharexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACharExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ACharExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ACharExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___ACharExpr____n_char(variable[3]) /*ACharExpr::_n_char*/ =  variable[1] /*n_char*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ACharExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ACharExpr::empty_init*/;
+  ATTR_parser_nodes___ACharExpr____n_char(variable[0]) /*ACharExpr::_n_char*/ =  variable[1] /*n_char*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_char*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_char*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_char*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_char*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_char*/)( variable[1] /*n_char*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_char*/)( variable[1] /*n_char*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_char*/)( variable[1] /*n_char*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label895: while(false);
+  return_label922: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ACharExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___n_string__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10226, LOCATE_parser_prod___AStringExpr___n_string__eq};
+  struct trace_t trace = {NULL, NULL, 10343, LOCATE_parser_prod___AStringExpr___n_string__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label896: while(false);
+  return_label923: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10247, LOCATE_parser_prod___AStringExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10364, LOCATE_parser_prod___AStringExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStringExpr___replace_child, LOCATE_parser_prod, 10249); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AStringExpr____n_string(variable[4]) /*AStringExpr::_n_string*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStringExpr___replace_child, LOCATE_parser_prod, 10366); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TString, ID_TString)) /*cast TString*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStringExpr___replace_child, LOCATE_parser_prod, 10253); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStringExpr____n_string(variable[4]) /*AStringExpr::_n_string*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStringExpr___replace_child, LOCATE_parser_prod, 10370); nit_exit(1);}
+      ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStringExpr____n_string(variable[4]) /*AStringExpr::_n_string*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/ =  NIT_NULL /*null*/;
     }
-    goto return_label897;
+    goto return_label924;
   }
-  return_label897: while(false);
+  return_label924: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10262, LOCATE_parser_prod___AStringExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10379, LOCATE_parser_prod___AStringExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label898: while(false);
+  return_label925: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10269, LOCATE_parser_prod___AStringExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10386, LOCATE_parser_prod___AStringExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label899: while(false);
+  return_label926: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10234, LOCATE_parser_prod___AStringExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10351, LOCATE_parser_prod___AStringExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStringExpr].i]) return;
-  return_label900: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label927: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStringExpr___init_astringexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10236, LOCATE_parser_prod___AStringExpr___init_astringexpr};
+  struct trace_t trace = {NULL, NULL, 10353, LOCATE_parser_prod___AStringExpr___init_astringexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStringExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AStringExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AStringExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStringExpr____n_string(variable[3]) /*AStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AStringExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStringExpr::empty_init*/;
+  ATTR_parser_nodes___AStringExpr____n_string(variable[0]) /*AStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_string*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_string*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_string*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)( variable[1] /*n_string*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label901: while(false);
+  return_label928: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___n_string__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10277, LOCATE_parser_prod___AStartStringExpr___n_string__eq};
+  struct trace_t trace = {NULL, NULL, 10394, LOCATE_parser_prod___AStartStringExpr___n_string__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label902: while(false);
+  return_label929: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10298, LOCATE_parser_prod___AStartStringExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10415, LOCATE_parser_prod___AStartStringExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStartStringExpr___replace_child, LOCATE_parser_prod, 10300); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[4]) /*AStartStringExpr::_n_string*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStartStringExpr___replace_child, LOCATE_parser_prod, 10417); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TStartString, ID_TStartString)) /*cast TStartString*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStartStringExpr___replace_child, LOCATE_parser_prod, 10304); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStartStringExpr____n_string(variable[4]) /*AStartStringExpr::_n_string*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AStartStringExpr___replace_child, LOCATE_parser_prod, 10421); nit_exit(1);}
+      ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AStartStringExpr____n_string(variable[4]) /*AStartStringExpr::_n_string*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/ =  NIT_NULL /*null*/;
     }
-    goto return_label903;
+    goto return_label930;
   }
-  return_label903: while(false);
+  return_label930: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10313, LOCATE_parser_prod___AStartStringExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10430, LOCATE_parser_prod___AStartStringExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label904: while(false);
+  return_label931: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10320, LOCATE_parser_prod___AStartStringExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10437, LOCATE_parser_prod___AStartStringExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label905: while(false);
+  return_label932: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10285, LOCATE_parser_prod___AStartStringExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10402, LOCATE_parser_prod___AStartStringExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStartStringExpr].i]) return;
-  return_label906: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label933: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStartStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AStartStringExpr___init_astartstringexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10287, LOCATE_parser_prod___AStartStringExpr___init_astartstringexpr};
+  struct trace_t trace = {NULL, NULL, 10404, LOCATE_parser_prod___AStartStringExpr___init_astartstringexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStartStringExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AStartStringExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AStartStringExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AStartStringExpr____n_string(variable[3]) /*AStartStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AStartStringExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AStartStringExpr::empty_init*/;
+  ATTR_parser_nodes___AStartStringExpr____n_string(variable[0]) /*AStartStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_string*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_string*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_string*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)( variable[1] /*n_string*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label907: while(false);
+  return_label934: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AStartStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___n_string__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10328, LOCATE_parser_prod___AMidStringExpr___n_string__eq};
+  struct trace_t trace = {NULL, NULL, 10445, LOCATE_parser_prod___AMidStringExpr___n_string__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label908: while(false);
+  return_label935: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10349, LOCATE_parser_prod___AMidStringExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10466, LOCATE_parser_prod___AMidStringExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMidStringExpr___replace_child, LOCATE_parser_prod, 10351); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[4]) /*AMidStringExpr::_n_string*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMidStringExpr___replace_child, LOCATE_parser_prod, 10468); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TMidString, ID_TMidString)) /*cast TMidString*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMidStringExpr___replace_child, LOCATE_parser_prod, 10355); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMidStringExpr____n_string(variable[4]) /*AMidStringExpr::_n_string*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMidStringExpr___replace_child, LOCATE_parser_prod, 10472); nit_exit(1);}
+      ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMidStringExpr____n_string(variable[4]) /*AMidStringExpr::_n_string*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/ =  NIT_NULL /*null*/;
     }
-    goto return_label909;
+    goto return_label936;
   }
-  return_label909: while(false);
+  return_label936: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10364, LOCATE_parser_prod___AMidStringExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10481, LOCATE_parser_prod___AMidStringExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label910: while(false);
+  return_label937: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10371, LOCATE_parser_prod___AMidStringExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10488, LOCATE_parser_prod___AMidStringExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label911: while(false);
+  return_label938: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10336, LOCATE_parser_prod___AMidStringExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10453, LOCATE_parser_prod___AMidStringExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMidStringExpr].i]) return;
-  return_label912: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label939: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMidStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMidStringExpr___init_amidstringexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10338, LOCATE_parser_prod___AMidStringExpr___init_amidstringexpr};
+  struct trace_t trace = {NULL, NULL, 10455, LOCATE_parser_prod___AMidStringExpr___init_amidstringexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMidStringExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AMidStringExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AMidStringExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMidStringExpr____n_string(variable[3]) /*AMidStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AMidStringExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMidStringExpr::empty_init*/;
+  ATTR_parser_nodes___AMidStringExpr____n_string(variable[0]) /*AMidStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_string*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_string*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_string*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)( variable[1] /*n_string*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label913: while(false);
+  return_label940: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMidStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___n_string__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10379, LOCATE_parser_prod___AEndStringExpr___n_string__eq};
+  struct trace_t trace = {NULL, NULL, 10496, LOCATE_parser_prod___AEndStringExpr___n_string__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label914: while(false);
+  return_label941: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10400, LOCATE_parser_prod___AEndStringExpr___replace_child};
+  struct trace_t trace = {NULL, NULL, 10517, LOCATE_parser_prod___AEndStringExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEndStringExpr___replace_child, LOCATE_parser_prod, 10402); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[4]) /*AEndStringExpr::_n_string*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEndStringExpr___replace_child, LOCATE_parser_prod, 10519); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TEndString, ID_TEndString)) /*cast TEndString*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEndStringExpr___replace_child, LOCATE_parser_prod, 10406); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEndStringExpr____n_string(variable[4]) /*AEndStringExpr::_n_string*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AEndStringExpr___replace_child, LOCATE_parser_prod, 10523); nit_exit(1);}
+      ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AEndStringExpr____n_string(variable[4]) /*AEndStringExpr::_n_string*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/ =  NIT_NULL /*null*/;
     }
-    goto return_label915;
+    goto return_label942;
   }
-  return_label915: while(false);
+  return_label942: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10415, LOCATE_parser_prod___AEndStringExpr___visit_all};
+  struct trace_t trace = {NULL, NULL, 10532, LOCATE_parser_prod___AEndStringExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label916: while(false);
+  return_label943: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10422, LOCATE_parser_prod___AEndStringExpr___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 10539, LOCATE_parser_prod___AEndStringExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label917: while(false);
+  return_label944: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10387, LOCATE_parser_prod___AEndStringExpr___empty_init};
+  struct trace_t trace = {NULL, NULL, 10504, LOCATE_parser_prod___AEndStringExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEndStringExpr].i]) return;
-  return_label918: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label945: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEndStringExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AEndStringExpr___init_aendstringexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10389, LOCATE_parser_prod___AEndStringExpr___init_aendstringexpr};
+  struct trace_t trace = {NULL, NULL, 10506, LOCATE_parser_prod___AEndStringExpr___init_aendstringexpr};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEndStringExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AEndStringExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AEndStringExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AEndStringExpr____n_string(variable[3]) /*AEndStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AEndStringExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AEndStringExpr::empty_init*/;
+  ATTR_parser_nodes___AEndStringExpr____n_string(variable[0]) /*AEndStringExpr::_n_string*/ =  variable[1] /*n_string*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_string*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_string*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_string*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_string*/)( variable[1] /*n_string*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_string*/)( variable[1] /*n_string*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label946: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEndStringExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___ASuperstringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 10563, LOCATE_parser_prod___ASuperstringExpr___replace_child};
+  val_t variable[8];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___replace_child, LOCATE_parser_prod, 10565); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
+  variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
+    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[5])) break; /*for*/
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
+    variable[6] = variable[5];
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
+    if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
+      variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+      if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___replace_child, LOCATE_parser_prod, 10569); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+        CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      } else { /*if*/
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+        CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
+      }
+      goto return_label947;
+    }
+    continue_948: while(0);
+    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
+  }
+  break_948: while(0);
+  return_label947: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___ASuperstringExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10580, LOCATE_parser_prod___ASuperstringExpr___visit_all};
+  val_t variable[6];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
+    if (!UNTAG_Bool(variable[4])) break; /*for*/
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
+    variable[5] = variable[4];
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
+    continue_950: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
+  }
+  break_950: while(0);
+  return_label949: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___ASuperstringExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10587, LOCATE_parser_prod___ASuperstringExpr___visit_all_reverse};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
+  variable[3] = variable[4];
+  while (true) { /*while*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
+    if (!UNTAG_Bool(variable[4])) break; /* while*/
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
+    variable[3] = variable[4] /*i=*/;
+    continue_952: while(0);
+  }
+  break_952: while(0);
+  return_label951: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___ASuperstringExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10548, LOCATE_parser_prod___ASuperstringExpr___empty_init};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label953: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___ASuperstringExpr___init_asuperstringexpr(val_t  self, val_t  param0, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10550, LOCATE_parser_prod___ASuperstringExpr___init_asuperstringexpr};
+  val_t variable[7];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i]) return;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ASuperstringExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ASuperstringExpr::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[PExpr]*/;
+  ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_exprs*/)( variable[1] /*n_exprs*/) /*Collection::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[4])) break; /*for*/
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
+    variable[5] = variable[4];
+    /* Register variable[6]: Result */
+    variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___init_asuperstringexpr, LOCATE_parser_prod, 10557); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[0]) /*ASuperstringExpr::_n_exprs*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_955: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
+  }
+  break_955: while(0);
+  return_label954: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___n_expr__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10599, LOCATE_parser_prod___AParExpr___n_expr__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label956: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 10620, LOCATE_parser_prod___AParExpr___replace_child};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParExpr___replace_child, LOCATE_parser_prod, 10622); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParExpr___replace_child, LOCATE_parser_prod, 10626); nit_exit(1);}
+      ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label957;
+  }
+  return_label957: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10635, LOCATE_parser_prod___AParExpr___visit_all};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label958: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10642, LOCATE_parser_prod___AParExpr___visit_all_reverse};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label959: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10607, LOCATE_parser_prod___AParExpr___empty_init};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label960: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AParExpr___init_aparexpr(val_t  self, val_t  param0, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10609, LOCATE_parser_prod___AParExpr___init_aparexpr};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i]) return;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AParExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AParExpr::empty_init*/;
+  ATTR_parser_nodes___AProxyExpr____n_expr(variable[0]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label961: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i] = 1;
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___n_expr__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10650, LOCATE_parser_prod___AAsCastExpr___n_expr__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label962: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___n_kwas__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10657, LOCATE_parser_prod___AAsCastExpr___n_kwas__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label963: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___n_type__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10664, LOCATE_parser_prod___AAsCastExpr___n_type__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label964: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 10695, LOCATE_parser_prod___AAsCastExpr___replace_child};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10697); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10701); nit_exit(1);}
+      ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label965;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwas, ID_TKwas)) /*cast TKwas*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10711); nit_exit(1);}
+      ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label965;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10721); nit_exit(1);}
+      ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label965;
+  }
+  return_label965: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10730, LOCATE_parser_prod___AAsCastExpr___visit_all};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label966: while(false);
+  tracehead = trace.prev;
+  return;
+}
+void parser_prod___AAsCastExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10743, LOCATE_parser_prod___AAsCastExpr___visit_all_reverse};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
+  trace.prev = tracehead; tracehead = &trace;
+  trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label919: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AEndStringExpr].i] = 1;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label967: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___ASuperstringExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10446, LOCATE_parser_prod___ASuperstringExpr___replace_child};
-  val_t variable[8];
-  void **closurevariable = NULL;
+void parser_prod___AAsCastExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10672, LOCATE_parser_prod___AAsCastExpr___empty_init};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[1] =  param0;
-  variable[2] =  param1;
-  variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___replace_child, LOCATE_parser_prod, 10448); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[4]) /*ASuperstringExpr::_n_exprs*/;
-  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
-  variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
-  while (true) { /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
-    if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
-    variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[7]) /*ASuperstringExpr::_n_exprs*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
-    variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
-    if (UNTAG_Bool(variable[7])) { /*if*/
-      variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-      if (UNTAG_Bool(variable[7])) { /*if*/
-        variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___replace_child, LOCATE_parser_prod, 10452); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[7]) /*ASuperstringExpr::_n_exprs*/;
-        CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
-      } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[7]) /*ASuperstringExpr::_n_exprs*/;
-        CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
-      }
-      goto return_label920;
-    }
-    continue_921: while(0);
-    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
-  }
-  break_921: while(0);
-  return_label920: while(false);
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label968: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___ASuperstringExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10463, LOCATE_parser_prod___ASuperstringExpr___visit_all};
+void parser_prod___AAsCastExpr___init_aascastexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10674, LOCATE_parser_prod___AAsCastExpr___init_aascastexpr};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[3]) /*ASuperstringExpr::_n_exprs*/;
-  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
-  while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
-    if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
-    variable[5] = variable[4];
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_923: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i]) return;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AAsCastExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAsCastExpr::empty_init*/;
+  ATTR_parser_nodes___AAsCastExpr____n_expr(variable[0]) /*AAsCastExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  break_923: while(0);
-  return_label922: while(false);
+  ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[0]) /*AAsCastExpr::_n_kwas*/ =  variable[2] /*n_kwas*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwas*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwas*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwas*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAsCastExpr____n_type(variable[0]) /*AAsCastExpr::_n_type*/ =  variable[3] /*n_type*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)( variable[3] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_type*/)( variable[3] /*n_type*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label969: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___ASuperstringExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10470, LOCATE_parser_prod___ASuperstringExpr___visit_all_reverse};
-  val_t variable[5];
-  void **closurevariable = NULL;
+void parser_prod___AAsNotnullExpr___n_expr__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10757, LOCATE_parser_prod___AAsNotnullExpr___n_expr__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[4]) /*ASuperstringExpr::_n_exprs*/;
-  variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[3] = variable[4];
-  while (true) { /*while*/
-    variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
-    if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[4]) /*ASuperstringExpr::_n_exprs*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
-    variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
-    variable[3] = variable[4] /*i=*/;
-    continue_925: while(0);
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  break_925: while(0);
-  return_label924: while(false);
+  return_label970: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___ASuperstringExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10431, LOCATE_parser_prod___ASuperstringExpr___empty_init};
-  val_t variable[2];
-  void **closurevariable = NULL;
+void parser_prod___AAsNotnullExpr___n_kwas__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10764, LOCATE_parser_prod___AAsNotnullExpr___n_kwas__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i]) return;
-  return_label926: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i] = 1;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label971: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___ASuperstringExpr___init_asuperstringexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10433, LOCATE_parser_prod___ASuperstringExpr___init_asuperstringexpr};
-  val_t variable[7];
-  void **closurevariable = NULL;
+void parser_prod___AAsNotnullExpr___n_kwnot__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10771, LOCATE_parser_prod___AAsNotnullExpr___n_kwnot__eq};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ASuperstringExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ASuperstringExpr::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[PExpr]*/
-  ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[3]) /*ASuperstringExpr::_n_exprs*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_exprs*/)( variable[1] /*n_exprs*/) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
-    variable[5] = variable[4];
-    variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ASuperstringExpr___init_asuperstringexpr, LOCATE_parser_prod, 10440); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___ASuperstringExpr____n_exprs(variable[6]) /*ASuperstringExpr::_n_exprs*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_928: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  break_928: while(0);
-  return_label927: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ASuperstringExpr].i] = 1;
+  return_label972: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10482, LOCATE_parser_prod___AParExpr___n_expr__eq};
+void parser_prod___AAsNotnullExpr___n_kwnull__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10778, LOCATE_parser_prod___AAsNotnullExpr___n_kwnull__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label929: while(false);
+  return_label973: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10503, LOCATE_parser_prod___AParExpr___replace_child};
+void parser_prod___AAsNotnullExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 10814, LOCATE_parser_prod___AAsNotnullExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParExpr___replace_child, LOCATE_parser_prod, 10505); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsNotnullExpr___replace_child, LOCATE_parser_prod, 10816); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AParExpr___replace_child, LOCATE_parser_prod, 10509); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsNotnullExpr___replace_child, LOCATE_parser_prod, 10820); nit_exit(1);}
+      ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AProxyExpr____n_expr(variable[4]) /*AProxyExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label930;
+    goto return_label974;
   }
-  return_label930: while(false);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwas, ID_TKwas)) /*cast TKwas*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsNotnullExpr___replace_child, LOCATE_parser_prod, 10830); nit_exit(1);}
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label974;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnot, ID_TKwnot)) /*cast TKwnot*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsNotnullExpr___replace_child, LOCATE_parser_prod, 10840); nit_exit(1);}
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label974;
+  }
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/;
+  /* Register variable[4]: Result */
+  variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
+  if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
+    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[4])) { /*if*/
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwnull, ID_TKwnull)) /*cast TKwnull*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsNotnullExpr___replace_child, LOCATE_parser_prod, 10850); nit_exit(1);}
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/ =  variable[2] /*new_child*/;
+    } else { /*if*/
+      ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/ =  NIT_NULL /*null*/;
+    }
+    goto return_label974;
+  }
+  return_label974: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10518, LOCATE_parser_prod___AParExpr___visit_all};
+void parser_prod___AAsNotnullExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10859, LOCATE_parser_prod___AAsNotnullExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label931: while(false);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label975: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10525, LOCATE_parser_prod___AParExpr___visit_all_reverse};
+void parser_prod___AAsNotnullExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10875, LOCATE_parser_prod___AAsNotnullExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label932: while(false);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/;
+  /* Register variable[3]: Result */
+  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/;
+    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
+  }
+  return_label976: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10490, LOCATE_parser_prod___AParExpr___empty_init};
+void parser_prod___AAsNotnullExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10786, LOCATE_parser_prod___AAsNotnullExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i]) return;
-  return_label933: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i] = 1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsNotnullExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label977: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsNotnullExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AParExpr___init_aparexpr(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10492, LOCATE_parser_prod___AParExpr___init_aparexpr};
-  val_t variable[4];
-  void **closurevariable = NULL;
+void parser_prod___AAsNotnullExpr___init_aasnotnullexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10788, LOCATE_parser_prod___AAsNotnullExpr___init_aasnotnullexpr};
+  val_t variable[7];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AParExpr___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AParExpr::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AProxyExpr____n_expr(variable[3]) /*AProxyExpr::_n_expr*/ =  variable[1] /*n_expr*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[3]) /*PNode::parent=*/;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
+  /* Register variable[4]: Local variable */
+  variable[4] =  param3;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsNotnullExpr].i]) return;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AAsNotnullExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AAsNotnullExpr::empty_init*/;
+  ATTR_parser_nodes___AAsNotnullExpr____n_expr(variable[0]) /*AAsNotnullExpr::_n_expr*/ =  variable[1] /*n_expr*/;
+  /* Register variable[6]: Result */
+  variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[6])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label934: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AParExpr].i] = 1;
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwas(variable[0]) /*AAsNotnullExpr::_n_kwas*/ =  variable[2] /*n_kwas*/;
+  /* Register variable[6]: Result */
+  variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwas*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwas*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwas*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[6])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwnot(variable[0]) /*AAsNotnullExpr::_n_kwnot*/ =  variable[3] /*n_kwnot*/;
+  /* Register variable[6]: Result */
+  variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_kwnot*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_kwnot*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_kwnot*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_kwnot*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_kwnot*/)( variable[3] /*n_kwnot*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[6])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwnot*/)( variable[3] /*n_kwnot*/, variable[0]) /*PNode::parent=*/;
+  }
+  ATTR_parser_nodes___AAsNotnullExpr____n_kwnull(variable[0]) /*AAsNotnullExpr::_n_kwnull*/ =  variable[4] /*n_kwnull*/;
+  /* Register variable[6]: Result */
+  variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_kwnull*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_kwnull*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_kwnull*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_kwnull*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_kwnull*/)( variable[4] /*n_kwnull*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (UNTAG_Bool(variable[6])) { /*if*/
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_kwnull*/)( variable[4] /*n_kwnull*/, variable[0]) /*PNode::parent=*/;
+  }
+  return_label978: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsNotnullExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10533, LOCATE_parser_prod___AAsCastExpr___n_expr__eq};
+void parser_prod___AIssetAttrExpr___n_expr__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10899, LOCATE_parser_prod___AIssetAttrExpr___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_expr(variable[3]) /*AAsCastExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label935: while(false);
+  return_label979: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___n_kwas__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10540, LOCATE_parser_prod___AAsCastExpr___n_kwas__eq};
+void parser_prod___AIssetAttrExpr___n_id__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10906, LOCATE_parser_prod___AIssetAttrExpr___n_id__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[3]) /*AAsCastExpr::_n_kwas*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label936: while(false);
+  return_label980: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___n_type__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10547, LOCATE_parser_prod___AAsCastExpr___n_type__eq};
+void parser_prod___AIssetAttrExpr___n_kwisset__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10892, LOCATE_parser_prod___AIssetAttrExpr___n_kwisset__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_type(variable[3]) /*AAsCastExpr::_n_type*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label937: while(false);
+  return_label981: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10578, LOCATE_parser_prod___AAsCastExpr___replace_child};
+void parser_prod___AIssetAttrExpr___replace_child(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 10937, LOCATE_parser_prod___AIssetAttrExpr___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10580); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[4]) /*AAsCastExpr::_n_expr*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIssetAttrExpr___replace_child, LOCATE_parser_prod, 10939); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10584); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_expr(variable[4]) /*AAsCastExpr::_n_expr*/ =  variable[2] /*new_child*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwisset, ID_TKwisset)) /*cast TKwisset*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIssetAttrExpr___replace_child, LOCATE_parser_prod, 10943); nit_exit(1);}
+      ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_expr(variable[4]) /*AAsCastExpr::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/ =  NIT_NULL /*null*/;
     }
-    goto return_label938;
+    goto return_label982;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[4]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwas, ID_TKwas)) /*cast TKwas*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10594); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[4]) /*AAsCastExpr::_n_kwas*/ =  variable[2] /*new_child*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIssetAttrExpr___replace_child, LOCATE_parser_prod, 10953); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[4]) /*AAsCastExpr::_n_kwas*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label938;
+    goto return_label982;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[4]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
-      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PType, ID_PType)) /*cast PType*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AAsCastExpr___replace_child, LOCATE_parser_prod, 10604); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_type(variable[4]) /*AAsCastExpr::_n_type*/ =  variable[2] /*new_child*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
+      variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TAttrid, ID_TAttrid)) /*cast TAttrid*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AIssetAttrExpr___replace_child, LOCATE_parser_prod, 10963); nit_exit(1);}
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AAsCastExpr____n_type(variable[4]) /*AAsCastExpr::_n_type*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  NIT_NULL /*null*/;
     }
-    goto return_label938;
+    goto return_label982;
   }
-  return_label938: while(false);
+  return_label982: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10613, LOCATE_parser_prod___AAsCastExpr___visit_all};
+void parser_prod___AIssetAttrExpr___visit_all(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10972, LOCATE_parser_prod___AIssetAttrExpr___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[3]) /*AAsCastExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[3]) /*AAsCastExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[3]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[3]) /*AAsCastExpr::_n_kwas*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[3]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[3]) /*AAsCastExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label939: while(false);
+  return_label983: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10626, LOCATE_parser_prod___AAsCastExpr___visit_all_reverse};
+void parser_prod___AIssetAttrExpr___visit_all_reverse(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 10985, LOCATE_parser_prod___AIssetAttrExpr___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[3]) /*AAsCastExpr::_n_expr*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_expr(variable[3]) /*AAsCastExpr::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[3]) /*AAsCastExpr::_n_kwas*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[3]) /*AAsCastExpr::_n_kwas*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[3]) /*AAsCastExpr::_n_type*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AAsCastExpr____n_type(variable[3]) /*AAsCastExpr::_n_type*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label940: while(false);
+  return_label984: while(false);
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10555, LOCATE_parser_prod___AAsCastExpr___empty_init};
+void parser_prod___AIssetAttrExpr___empty_init(val_t  self, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10914, LOCATE_parser_prod___AIssetAttrExpr___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i]) return;
-  return_label941: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i] = 1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIssetAttrExpr].i]) return;
+  /* Register variable[1]: Method return value and escape marker */
+  return_label985: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIssetAttrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void parser_prod___AAsCastExpr___init_aascastexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10557, LOCATE_parser_prod___AAsCastExpr___init_aascastexpr};
+void parser_prod___AIssetAttrExpr___init_aissetattrexpr(val_t  self, val_t  param0, val_t  param1, val_t  param2, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 10916, LOCATE_parser_prod___AIssetAttrExpr___init_aissetattrexpr};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i]) return;
-  variable[5] = variable[0];
-  CALL_parser_prod___AAsCastExpr___empty_init(variable[5])(variable[5], init_table /*YYY*/) /*AAsCastExpr::empty_init*/;
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_expr(variable[5]) /*AAsCastExpr::_n_expr*/ =  variable[1] /*n_expr*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIssetAttrExpr].i]) return;
+  /* Register variable[4]: Method return value and escape marker */
+  CALL_parser_prod___AIssetAttrExpr___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AIssetAttrExpr::empty_init*/;
+  ATTR_parser_nodes___AIssetAttrExpr____n_kwisset(variable[0]) /*AIssetAttrExpr::_n_kwisset*/ =  variable[1] /*n_kwisset*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwisset*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwisset*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwisset*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwisset*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwisset*/)( variable[1] /*n_kwisset*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_expr*/)( variable[1] /*n_expr*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwisset*/)( variable[1] /*n_kwisset*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_kwas(variable[5]) /*AAsCastExpr::_n_kwas*/ =  variable[2] /*n_kwas*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_kwas*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_kwas*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_kwas*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  ATTR_parser_nodes___AAttrFormExpr____n_expr(variable[0]) /*AAttrFormExpr::_n_expr*/ =  variable[2] /*n_expr*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_kwas*/)( variable[2] /*n_kwas*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_expr*/)( variable[2] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[5] = variable[0];
-  ATTR_parser_nodes___AAsCastExpr____n_type(variable[5]) /*AAsCastExpr::_n_type*/ =  variable[3] /*n_type*/;
-  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_type*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_type*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_type*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_type*/)( variable[3] /*n_type*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  ATTR_parser_nodes___AAttrFormExpr____n_id(variable[0]) /*AAttrFormExpr::_n_id*/ =  variable[3] /*n_id*/;
+  /* Register variable[5]: Result */
+  variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_id*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_id*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_id*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_id*/)( variable[3] /*n_id*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[5])) { /*if*/
-    variable[5] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_type*/)( variable[3] /*n_type*/, variable[5]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_id*/)( variable[3] /*n_id*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label942: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AAsCastExpr].i] = 1;
+  return_label986: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AIssetAttrExpr].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___n_pluseq__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10640, LOCATE_parser_prod___APlusAssignOp___n_pluseq__eq};
+  struct trace_t trace = {NULL, NULL, 10999, LOCATE_parser_prod___APlusAssignOp___n_pluseq__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label943: while(false);
+  return_label987: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10661, LOCATE_parser_prod___APlusAssignOp___replace_child};
+  struct trace_t trace = {NULL, NULL, 11020, LOCATE_parser_prod___APlusAssignOp___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusAssignOp___replace_child, LOCATE_parser_prod, 10663); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[4]) /*APlusAssignOp::_n_pluseq*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusAssignOp___replace_child, LOCATE_parser_prod, 11022); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TPluseq, ID_TPluseq)) /*cast TPluseq*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusAssignOp___replace_child, LOCATE_parser_prod, 10667); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[4]) /*APlusAssignOp::_n_pluseq*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___APlusAssignOp___replace_child, LOCATE_parser_prod, 11026); nit_exit(1);}
+      ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[4]) /*APlusAssignOp::_n_pluseq*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/ =  NIT_NULL /*null*/;
     }
-    goto return_label944;
+    goto return_label988;
   }
-  return_label944: while(false);
+  return_label988: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10676, LOCATE_parser_prod___APlusAssignOp___visit_all};
+  struct trace_t trace = {NULL, NULL, 11035, LOCATE_parser_prod___APlusAssignOp___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label945: while(false);
+  return_label989: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10683, LOCATE_parser_prod___APlusAssignOp___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11042, LOCATE_parser_prod___APlusAssignOp___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label946: while(false);
+  return_label990: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10648, LOCATE_parser_prod___APlusAssignOp___empty_init};
+  struct trace_t trace = {NULL, NULL, 11007, LOCATE_parser_prod___APlusAssignOp___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusAssignOp].i]) return;
-  return_label947: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label991: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusAssignOp].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___APlusAssignOp___init_aplusassignop(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10650, LOCATE_parser_prod___APlusAssignOp___init_aplusassignop};
+  struct trace_t trace = {NULL, NULL, 11009, LOCATE_parser_prod___APlusAssignOp___init_aplusassignop};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusAssignOp].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___APlusAssignOp___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*APlusAssignOp::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[3]) /*APlusAssignOp::_n_pluseq*/ =  variable[1] /*n_pluseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___APlusAssignOp___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*APlusAssignOp::empty_init*/;
+  ATTR_parser_nodes___APlusAssignOp____n_pluseq(variable[0]) /*APlusAssignOp::_n_pluseq*/ =  variable[1] /*n_pluseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_pluseq*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_pluseq*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_pluseq*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_pluseq*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_pluseq*/)( variable[1] /*n_pluseq*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_pluseq*/)( variable[1] /*n_pluseq*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_pluseq*/)( variable[1] /*n_pluseq*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label948: while(false);
+  return_label992: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_APlusAssignOp].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___n_minuseq__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10691, LOCATE_parser_prod___AMinusAssignOp___n_minuseq__eq};
+  struct trace_t trace = {NULL, NULL, 11050, LOCATE_parser_prod___AMinusAssignOp___n_minuseq__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label949: while(false);
+  return_label993: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10712, LOCATE_parser_prod___AMinusAssignOp___replace_child};
+  struct trace_t trace = {NULL, NULL, 11071, LOCATE_parser_prod___AMinusAssignOp___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusAssignOp___replace_child, LOCATE_parser_prod, 10714); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[4]) /*AMinusAssignOp::_n_minuseq*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusAssignOp___replace_child, LOCATE_parser_prod, 11073); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TMinuseq, ID_TMinuseq)) /*cast TMinuseq*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusAssignOp___replace_child, LOCATE_parser_prod, 10718); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[4]) /*AMinusAssignOp::_n_minuseq*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AMinusAssignOp___replace_child, LOCATE_parser_prod, 11077); nit_exit(1);}
+      ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[4]) /*AMinusAssignOp::_n_minuseq*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/ =  NIT_NULL /*null*/;
     }
-    goto return_label950;
+    goto return_label994;
   }
-  return_label950: while(false);
+  return_label994: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10727, LOCATE_parser_prod___AMinusAssignOp___visit_all};
+  struct trace_t trace = {NULL, NULL, 11086, LOCATE_parser_prod___AMinusAssignOp___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label951: while(false);
+  return_label995: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10734, LOCATE_parser_prod___AMinusAssignOp___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11093, LOCATE_parser_prod___AMinusAssignOp___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label952: while(false);
+  return_label996: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10699, LOCATE_parser_prod___AMinusAssignOp___empty_init};
+  struct trace_t trace = {NULL, NULL, 11058, LOCATE_parser_prod___AMinusAssignOp___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusAssignOp].i]) return;
-  return_label953: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label997: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusAssignOp].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AMinusAssignOp___init_aminusassignop(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10701, LOCATE_parser_prod___AMinusAssignOp___init_aminusassignop};
+  struct trace_t trace = {NULL, NULL, 11060, LOCATE_parser_prod___AMinusAssignOp___init_aminusassignop};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusAssignOp].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___AMinusAssignOp___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*AMinusAssignOp::empty_init*/;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[3]) /*AMinusAssignOp::_n_minuseq*/ =  variable[1] /*n_minuseq*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___AMinusAssignOp___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AMinusAssignOp::empty_init*/;
+  ATTR_parser_nodes___AMinusAssignOp____n_minuseq(variable[0]) /*AMinusAssignOp::_n_minuseq*/ =  variable[1] /*n_minuseq*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_minuseq*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_minuseq*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_minuseq*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_minuseq*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_minuseq*/)( variable[1] /*n_minuseq*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minuseq*/)( variable[1] /*n_minuseq*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_minuseq*/)( variable[1] /*n_minuseq*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label954: while(false);
+  return_label998: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AMinusAssignOp].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___n_kwwith__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10742, LOCATE_parser_prod___AClosureDef___n_kwwith__eq};
+  struct trace_t trace = {NULL, NULL, 11101, LOCATE_parser_prod___AClosureDef___n_kwwith__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_kwwith(variable[3]) /*AClosureDef::_n_kwwith*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label955: while(false);
+  return_label999: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___n_kwdo__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10749, LOCATE_parser_prod___AClosureDef___n_kwdo__eq};
+  struct trace_t trace = {NULL, NULL, 11108, LOCATE_parser_prod___AClosureDef___n_kwdo__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_kwdo(variable[3]) /*AClosureDef::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label956: while(false);
+  return_label1000: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___n_expr__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10756, LOCATE_parser_prod___AClosureDef___n_expr__eq};
+  struct trace_t trace = {NULL, NULL, 11115, LOCATE_parser_prod___AClosureDef___n_expr__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_expr(variable[3]) /*AClosureDef::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label957: while(false);
+  return_label1001: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10794, LOCATE_parser_prod___AClosureDef___replace_child};
+  struct trace_t trace = {NULL, NULL, 11153, LOCATE_parser_prod___AClosureDef___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 10796); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[4]) /*AClosureDef::_n_kwwith*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 11155); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwwith, ID_TKwwith)) /*cast TKwwith*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 10800); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_kwwith(variable[4]) /*AClosureDef::_n_kwwith*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 11159); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_kwwith(variable[4]) /*AClosureDef::_n_kwwith*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/ =  NIT_NULL /*null*/;
     }
-    goto return_label958;
+    goto return_label1002;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[4]) /*AClosureDef::_n_id*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[7]) /*AClosureDef::_n_id*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 10810); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[7]) /*AClosureDef::_n_id*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 11169); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[7]) /*AClosureDef::_n_id*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label958;
+      goto return_label1002;
     }
-    continue_959: while(0);
+    continue_1003: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_959: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[4]) /*AClosureDef::_n_kwdo*/;
+  break_1003: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TKwdo, ID_TKwdo)) /*cast TKwdo*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 10822); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_kwdo(variable[4]) /*AClosureDef::_n_kwdo*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 11181); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_kwdo(variable[4]) /*AClosureDef::_n_kwdo*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/ =  NIT_NULL /*null*/;
     }
-    goto return_label958;
+    goto return_label1002;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDef____n_expr(variable[4]) /*AClosureDef::_n_expr*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PExpr, ID_PExpr)) /*cast PExpr*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 10832); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_expr(variable[4]) /*AClosureDef::_n_expr*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___replace_child, LOCATE_parser_prod, 11191); nit_exit(1);}
+      ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AClosureDef____n_expr(variable[4]) /*AClosureDef::_n_expr*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/ =  NIT_NULL /*null*/;
     }
-    goto return_label958;
+    goto return_label1002;
   }
-  return_label958: while(false);
+  return_label1002: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10841, LOCATE_parser_prod___AClosureDef___visit_all};
+  struct trace_t trace = {NULL, NULL, 11200, LOCATE_parser_prod___AClosureDef___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[3]) /*AClosureDef::_n_kwwith*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[3]) /*AClosureDef::_n_kwwith*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_id(variable[3]) /*AClosureDef::_n_id*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_961: while(0);
+    continue_1005: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_961: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[3]) /*AClosureDef::_n_kwdo*/;
+  break_1005: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[3]) /*AClosureDef::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[3]) /*AClosureDef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[3]) /*AClosureDef::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label960: while(false);
+  return_label1004: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10857, LOCATE_parser_prod___AClosureDef___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11216, LOCATE_parser_prod___AClosureDef___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[3]) /*AClosureDef::_n_kwwith*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[3]) /*AClosureDef::_n_kwwith*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[4]) /*AClosureDef::_n_id*/;
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[4]) /*AClosureDef::_n_id*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_963: while(0);
+    continue_1007: while(0);
   }
-  break_963: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[3]) /*AClosureDef::_n_kwdo*/;
+  break_1007: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[3]) /*AClosureDef::_n_kwdo*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[3]) /*AClosureDef::_n_expr*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[3]) /*AClosureDef::_n_expr*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label962: while(false);
+  return_label1006: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10764, LOCATE_parser_prod___AClosureDef___empty_init};
+  struct trace_t trace = {NULL, NULL, 11123, LOCATE_parser_prod___AClosureDef___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDef].i]) return;
-  return_label964: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label1008: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AClosureDef___init_aclosuredef(val_t  self, val_t  param0, val_t  param1, val_t  param2, val_t  param3, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10766, LOCATE_parser_prod___AClosureDef___init_aclosuredef};
+  struct trace_t trace = {NULL, NULL, 11125, LOCATE_parser_prod___AClosureDef___init_aclosuredef};
   val_t variable[10];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Local variable */
   variable[3] =  param2;
+  /* Register variable[4]: Local variable */
   variable[4] =  param3;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDef].i]) return;
-  variable[6] = variable[0];
-  CALL_parser_prod___AClosureDef___empty_init(variable[6])(variable[6], init_table /*YYY*/) /*AClosureDef::empty_init*/;
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_kwwith(variable[6]) /*AClosureDef::_n_kwwith*/ =  variable[1] /*n_kwwith*/;
+  /* Register variable[5]: Method return value and escape marker */
+  CALL_parser_prod___AClosureDef___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AClosureDef::empty_init*/;
+  ATTR_parser_nodes___AClosureDef____n_kwwith(variable[0]) /*AClosureDef::_n_kwwith*/ =  variable[1] /*n_kwwith*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n_kwwith*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n_kwwith*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n_kwwith*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n_kwwith*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n_kwwith*/)( variable[1] /*n_kwwith*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  variable[7] = NEW_List_list___List___init(); /*new List[TId]*/
-  ATTR_parser_nodes___AClosureDef____n_id(variable[6]) /*AClosureDef::_n_id*/ = variable[7];
-  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_id*/)( variable[2] /*n_id*/) /*AbstractArray::iterator*/;
+  /* Register variable[6]: Result */
+  variable[6] = NEW_List_list___List___init() /*new List[TId]*/;
+  ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/ = variable[6];
+  /* Register variable[6]: For iterator */
+  variable[6] = CALL_abstract_collection___Collection___iterator( variable[2] /*n_id*/)( variable[2] /*n_id*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*ArrayIterator::is_ok*/;
+    /* Register variable[7]: For 'is_ok' result */
+    variable[7] = CALL_abstract_collection___Iterator___is_ok(variable[6])(variable[6]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[7])) break; /*for*/
-    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*ArrayIterator::item*/;
+    variable[7] = CALL_abstract_collection___Iterator___item(variable[6])(variable[6]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[8]: Local variable */
     variable[8] = variable[7];
+    /* Register variable[9]: Result */
     variable[9] = TAG_Bool(( variable[8] /*n*/==NIT_NULL) || VAL_ISA( variable[8] /*n*/, COLOR_TId, ID_TId)) /*cast TId*/;
-    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___init_aclosuredef, LOCATE_parser_prod, 10780); nit_exit(1);}
-    variable[9] = variable[0];
-    variable[9] = ATTR_parser_nodes___AClosureDef____n_id(variable[9]) /*AClosureDef::_n_id*/;
+    if (!UNTAG_Bool(variable[9])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AClosureDef___init_aclosuredef, LOCATE_parser_prod, 11139); nit_exit(1);}
+    /* Register variable[9]: Result */
+    variable[9] = ATTR_parser_nodes___AClosureDef____n_id(variable[0]) /*AClosureDef::_n_id*/;
     CALL_abstract_collection___SimpleCollection___add(variable[9])(variable[9],  variable[8] /*n*/) /*IndexedCollection::add*/;
-    variable[9] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[9]) /*PNode::parent=*/;
-    continue_966: while(0);
-    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*ArrayIterator::next*/;
-  }
-  break_966: while(0);
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_kwdo(variable[6]) /*AClosureDef::_n_kwdo*/ =  variable[3] /*n_kwdo*/;
+    CALL_parser_prod___PNode___parent__eq( variable[8] /*n*/)( variable[8] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_1010: while(0);
+    CALL_abstract_collection___Iterator___next(variable[6])(variable[6]) /*Iterator::next*/;
+  }
+  break_1010: while(0);
+  ATTR_parser_nodes___AClosureDef____n_kwdo(variable[0]) /*AClosureDef::_n_kwdo*/ =  variable[3] /*n_kwdo*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[3] /*n_kwdo*/ ==  NIT_NULL /*null*/) || (( variable[3] /*n_kwdo*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*n_kwdo*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*n_kwdo*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[3] /*n_kwdo*/)( variable[3] /*n_kwdo*/, variable[0]) /*PNode::parent=*/;
   }
-  variable[6] = variable[0];
-  ATTR_parser_nodes___AClosureDef____n_expr(variable[6]) /*AClosureDef::_n_expr*/ =  variable[4] /*n_expr*/;
+  ATTR_parser_nodes___AClosureDef____n_expr(variable[0]) /*AClosureDef::_n_expr*/ =  variable[4] /*n_expr*/;
+  /* Register variable[6]: Result */
   variable[6] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*n_expr*/ ==  NIT_NULL /*null*/) || (( variable[4] /*n_expr*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*n_expr*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*n_expr*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*n_expr*/)( variable[4] /*n_expr*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[6])) { /*if*/
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_expr*/)( variable[4] /*n_expr*/, variable[6]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[4] /*n_expr*/)( variable[4] /*n_expr*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label965: while(false);
+  return_label1009: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AClosureDef].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___n_classid__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10878, LOCATE_parser_prod___AQualified___n_classid__eq};
+  struct trace_t trace = {NULL, NULL, 11237, LOCATE_parser_prod___AQualified___n_classid__eq};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  ATTR_parser_nodes___AQualified____n_classid(variable[3]) /*AQualified::_n_classid*/ =  variable[1] /*n*/;
+  /* Register variable[2]: Method return value and escape marker */
+  ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/ =  variable[1] /*n*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[1] /*n*/)( variable[1] /*n*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label967: while(false);
+  return_label1011: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10906, LOCATE_parser_prod___AQualified___replace_child};
+  struct trace_t trace = {NULL, NULL, 11265, LOCATE_parser_prod___AQualified___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 10908); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[4]) /*AQualified::_n_id*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 11267); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[7]) /*AQualified::_n_id*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TId, ID_TId)) /*cast TId*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 10912); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[7]) /*AQualified::_n_id*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 11271); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[7]) /*AQualified::_n_id*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label968;
+      goto return_label1012;
     }
-    continue_969: while(0);
+    continue_1013: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_969: while(0);
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AQualified____n_classid(variable[4]) /*AQualified::_n_classid*/;
+  break_1013: while(0);
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
     if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TClassid, ID_TClassid)) /*cast TClassid*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 10924); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AQualified____n_classid(variable[4]) /*AQualified::_n_classid*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___replace_child, LOCATE_parser_prod, 11283); nit_exit(1);}
+      ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/ =  variable[2] /*new_child*/;
     } else { /*if*/
-      variable[4] = variable[0];
-      ATTR_parser_nodes___AQualified____n_classid(variable[4]) /*AQualified::_n_classid*/ =  NIT_NULL /*null*/;
+      ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/ =  NIT_NULL /*null*/;
     }
-    goto return_label968;
+    goto return_label1012;
   }
-  return_label968: while(false);
+  return_label1012: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10933, LOCATE_parser_prod___AQualified___visit_all};
+  struct trace_t trace = {NULL, NULL, 11292, LOCATE_parser_prod___AQualified___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AQualified____n_id(variable[3]) /*AQualified::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_971: while(0);
+    continue_1015: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_971: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[3]) /*AQualified::_n_classid*/;
+  break_1015: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[3]) /*AQualified::_n_classid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label970: while(false);
+  return_label1014: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10943, LOCATE_parser_prod___AQualified___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11302, LOCATE_parser_prod___AQualified___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[4]) /*AQualified::_n_id*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[4]) /*AQualified::_n_id*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_973: while(0);
+    continue_1017: while(0);
   }
-  break_973: while(0);
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[3]) /*AQualified::_n_classid*/;
+  break_1017: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[3]) /*AQualified::_n_classid*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label972: while(false);
+  return_label1016: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10886, LOCATE_parser_prod___AQualified___empty_init};
+  struct trace_t trace = {NULL, NULL, 11245, LOCATE_parser_prod___AQualified___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AQualified].i]) return;
-  return_label974: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label1018: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AQualified].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___AQualified___init_aqualified(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10888, LOCATE_parser_prod___AQualified___init_aqualified};
+  struct trace_t trace = {NULL, NULL, 11247, LOCATE_parser_prod___AQualified___init_aqualified};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AQualified].i]) return;
-  variable[4] = variable[0];
-  CALL_parser_prod___AQualified___empty_init(variable[4])(variable[4], init_table /*YYY*/) /*AQualified::empty_init*/;
-  variable[4] = variable[0];
-  variable[5] = NEW_List_list___List___init(); /*new List[TId]*/
-  ATTR_parser_nodes___AQualified____n_id(variable[4]) /*AQualified::_n_id*/ = variable[5];
-  variable[4] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_id*/)( variable[1] /*n_id*/) /*AbstractArray::iterator*/;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_parser_prod___AQualified___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*AQualified::empty_init*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_List_list___List___init() /*new List[TId]*/;
+  ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/ = variable[4];
+  /* Register variable[4]: For iterator */
+  variable[4] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_id*/)( variable[1] /*n_id*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*ArrayIterator::is_ok*/;
+    /* Register variable[5]: For 'is_ok' result */
+    variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*ArrayIterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool(( variable[6] /*n*/==NIT_NULL) || VAL_ISA( variable[6] /*n*/, COLOR_TId, ID_TId)) /*cast TId*/;
-    if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___init_aqualified, LOCATE_parser_prod, 10896); nit_exit(1);}
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[7]) /*AQualified::_n_id*/;
+    if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___AQualified___init_aqualified, LOCATE_parser_prod, 11255); nit_exit(1);}
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___AQualified____n_id(variable[0]) /*AQualified::_n_id*/;
     CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7],  variable[6] /*n*/) /*IndexedCollection::add*/;
-    variable[7] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[6] /*n*/)( variable[6] /*n*/, variable[7]) /*PNode::parent=*/;
-    continue_976: while(0);
-    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*ArrayIterator::next*/;
-  }
-  break_976: while(0);
-  variable[4] = variable[0];
-  ATTR_parser_nodes___AQualified____n_classid(variable[4]) /*AQualified::_n_classid*/ =  variable[2] /*n_classid*/;
+    CALL_parser_prod___PNode___parent__eq( variable[6] /*n*/)( variable[6] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_1020: while(0);
+    CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
+  }
+  break_1020: while(0);
+  ATTR_parser_nodes___AQualified____n_classid(variable[0]) /*AQualified::_n_classid*/ =  variable[2] /*n_classid*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*n_classid*/ ==  NIT_NULL /*null*/) || (( variable[2] /*n_classid*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*n_classid*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*n_classid*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*n_classid*/)( variable[2] /*n_classid*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_classid*/)( variable[2] /*n_classid*/, variable[4]) /*PNode::parent=*/;
+    CALL_parser_prod___PNode___parent__eq( variable[2] /*n_classid*/)( variable[2] /*n_classid*/, variable[0]) /*PNode::parent=*/;
   }
-  return_label975: while(false);
+  return_label1019: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_AQualified].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoc___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 10974, LOCATE_parser_prod___ADoc___replace_child};
+  struct trace_t trace = {NULL, NULL, 11333, LOCATE_parser_prod___ADoc___replace_child};
   val_t variable[8];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___replace_child, LOCATE_parser_prod, 10976); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[4]) /*ADoc::_n_comment*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___replace_child, LOCATE_parser_prod, 11335); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
-  variable[5] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]); /*new Range[Int]*/
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
+  variable[4] = NEW_Range_range___Range___without_last( TAG_Int(0), variable[4]) /*new Range[Int]*/;
+  /* Register variable[4]: For iterator */
   variable[4] = CALL_abstract_collection___Collection___iterator(variable[4])(variable[4]) /*Range::iterator*/;
   while (true) { /*for*/
+    /* Register variable[5]: For 'is_ok' result */
     variable[5] = CALL_abstract_collection___Iterator___is_ok(variable[4])(variable[4]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[5])) break; /*for*/
-    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/;
+    variable[5] = CALL_abstract_collection___Iterator___item(variable[4])(variable[4]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[6]: Local variable */
     variable[6] = variable[5];
-    variable[7] = variable[0];
-    variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[7]) /*ADoc::_n_comment*/;
-    variable[7] = CALL_abstract_collection___Map_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
+    variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_abstract_collection___MapRead_____bra(variable[7])(variable[7],  variable[6] /*i*/) /*List::[]*/;
+    /* Register variable[7]: Result */
     variable[7] = TAG_Bool((variable[7] ==  variable[1] /*old_child*/) || ((variable[7] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[7])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[7], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[7])(variable[7],  variable[1] /*old_child*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[7])) { /*if*/
+      /* Register variable[7]: Result */
       variable[7] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
       if (UNTAG_Bool(variable[7])) { /*if*/
+        /* Register variable[7]: Result */
         variable[7] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_TComment, ID_TComment)) /*cast TComment*/;
-        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___replace_child, LOCATE_parser_prod, 10980); nit_exit(1);}
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[7]) /*ADoc::_n_comment*/;
+        if (!UNTAG_Bool(variable[7])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___replace_child, LOCATE_parser_prod, 11339); nit_exit(1);}
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
         CALL_abstract_collection___Map_____braeq(variable[7])(variable[7],  variable[6] /*i*/,  variable[2] /*new_child*/) /*List::[]=*/;
-        variable[7] = variable[0];
-        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[7]) /*PNode::parent=*/;
+        CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
       } else { /*if*/
-        variable[7] = variable[0];
-        variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[7]) /*ADoc::_n_comment*/;
+        /* Register variable[7]: Result */
+        variable[7] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
         CALL_abstract_collection___Map___remove_at(variable[7])(variable[7],  variable[6] /*i*/) /*List::remove_at*/;
       }
-      goto return_label977;
+      goto return_label1021;
     }
-    continue_978: while(0);
+    continue_1022: while(0);
     CALL_abstract_collection___Iterator___next(variable[4])(variable[4]) /*Iterator::next*/;
   }
-  break_978: while(0);
-  return_label977: while(false);
+  break_1022: while(0);
+  return_label1021: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoc___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10991, LOCATE_parser_prod___ADoc___visit_all};
+  struct trace_t trace = {NULL, NULL, 11350, LOCATE_parser_prod___ADoc___visit_all};
   val_t variable[6];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___ADoc____n_comment(variable[3]) /*ADoc::_n_comment*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
+  /* Register variable[3]: For iterator */
   variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
   while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
     variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*n*/) /*Visitor::visit*/;
-    continue_980: while(0);
+    continue_1024: while(0);
     CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
   }
-  break_980: while(0);
-  return_label979: while(false);
+  break_1024: while(0);
+  return_label1023: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoc___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 10998, LOCATE_parser_prod___ADoc___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11357, LOCATE_parser_prod___ADoc___visit_all_reverse};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[4]) /*ADoc::_n_comment*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Local variable */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
+  /* Register variable[4]: Result */
   variable[4] = CALL_abstract_collection___Collection___length(variable[4])(variable[4]) /*List::length*/;
   variable[3] = variable[4];
   while (true) { /*while*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(UNTAG_Int( variable[3] /*i*/)>=UNTAG_Int( TAG_Int(0)));
     if (!UNTAG_Bool(variable[4])) break; /* while*/
-    variable[4] = variable[0];
-    variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[4]) /*ADoc::_n_comment*/;
-    variable[4] = CALL_abstract_collection___Map_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
+    /* Register variable[4]: Result */
+    variable[4] = CALL_abstract_collection___MapRead_____bra(variable[4])(variable[4],  variable[3] /*i*/) /*List::[]*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*Visitor::visit*/;
+    /* Register variable[4]: Result */
     variable[4] = TAG_Int(UNTAG_Int( variable[3] /*i*/)-UNTAG_Int( TAG_Int(1)));
     variable[3] = variable[4] /*i=*/;
-    continue_982: while(0);
+    continue_1026: while(0);
   }
-  break_982: while(0);
-  return_label981: while(false);
+  break_1026: while(0);
+  return_label1025: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoc___empty_init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10959, LOCATE_parser_prod___ADoc___empty_init};
+  struct trace_t trace = {NULL, NULL, 11318, LOCATE_parser_prod___ADoc___empty_init};
   val_t variable[2];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoc].i]) return;
-  return_label983: while(false);
+  /* Register variable[1]: Method return value and escape marker */
+  return_label1027: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoc].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___ADoc___init_adoc(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 10961, LOCATE_parser_prod___ADoc___init_adoc};
+  struct trace_t trace = {NULL, NULL, 11320, LOCATE_parser_prod___ADoc___init_adoc};
   val_t variable[7];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoc].i]) return;
-  variable[3] = variable[0];
-  CALL_parser_prod___ADoc___empty_init(variable[3])(variable[3], init_table /*YYY*/) /*ADoc::empty_init*/;
-  variable[3] = variable[0];
-  variable[4] = NEW_List_list___List___init(); /*new List[TComment]*/
-  ATTR_parser_nodes___ADoc____n_comment(variable[3]) /*ADoc::_n_comment*/ = variable[4];
-  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_comment*/)( variable[1] /*n_comment*/) /*AbstractArray::iterator*/;
+  /* Register variable[2]: Method return value and escape marker */
+  CALL_parser_prod___ADoc___empty_init(variable[0])(variable[0], init_table /*YYY*/) /*ADoc::empty_init*/;
+  /* Register variable[3]: Result */
+  variable[3] = NEW_List_list___List___init() /*new List[TComment]*/;
+  ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/ = variable[3];
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator( variable[1] /*n_comment*/)( variable[1] /*n_comment*/) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
+    /* Register variable[6]: Result */
     variable[6] = TAG_Bool(( variable[5] /*n*/==NIT_NULL) || VAL_ISA( variable[5] /*n*/, COLOR_TComment, ID_TComment)) /*cast TComment*/;
-    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___init_adoc, LOCATE_parser_prod, 10968); nit_exit(1);}
-    variable[6] = variable[0];
-    variable[6] = ATTR_parser_nodes___ADoc____n_comment(variable[6]) /*ADoc::_n_comment*/;
+    if (!UNTAG_Bool(variable[6])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___ADoc___init_adoc, LOCATE_parser_prod, 11327); nit_exit(1);}
+    /* Register variable[6]: Result */
+    variable[6] = ATTR_parser_nodes___ADoc____n_comment(variable[0]) /*ADoc::_n_comment*/;
     CALL_abstract_collection___SimpleCollection___add(variable[6])(variable[6],  variable[5] /*n*/) /*IndexedCollection::add*/;
-    variable[6] = variable[0];
-    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[6]) /*PNode::parent=*/;
-    continue_985: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
+    CALL_parser_prod___PNode___parent__eq( variable[5] /*n*/)( variable[5] /*n*/, variable[0]) /*PNode::parent=*/;
+    continue_1029: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  break_985: while(0);
-  return_label984: while(false);
+  break_1029: while(0);
+  return_label1028: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ADoc].i] = 1;
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Start___replace_child(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 11019, LOCATE_parser_prod___Start___replace_child};
+  struct trace_t trace = {NULL, NULL, 11378, LOCATE_parser_prod___Start___replace_child};
   val_t variable[5];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*old_child*/ ==  NIT_NULL /*null*/) || (( variable[1] /*old_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*old_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Start___replace_child, LOCATE_parser_prod, 11021); nit_exit(1);}
-  variable[4] = variable[0];
-  variable[4] = ATTR_parser_nodes___Start____n_base(variable[4]) /*Start::_n_base*/;
+  if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Start___replace_child, LOCATE_parser_prod, 11380); nit_exit(1);}
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/;
+  /* Register variable[4]: Result */
   variable[4] = TAG_Bool((variable[4] ==  variable[1] /*old_child*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], variable[1] /*old_child*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  variable[1] /*old_child*/) /*Object::==*/)))));
   if (UNTAG_Bool(variable[4])) { /*if*/
+    /* Register variable[4]: Result */
     variable[4] = TAG_Bool(( variable[2] /*new_child*/ ==  NIT_NULL /*null*/) || (( variable[2] /*new_child*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[2] /*new_child*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[2] /*new_child*/)( variable[2] /*new_child*/,  NIT_NULL /*null*/) /*Object::==*/)))));
     if (UNTAG_Bool(variable[4])) { /*if*/
     } else { /*if*/
-      variable[4] = variable[0];
-      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[4]) /*PNode::parent=*/;
+      CALL_parser_prod___PNode___parent__eq( variable[2] /*new_child*/)( variable[2] /*new_child*/, variable[0]) /*PNode::parent=*/;
+      /* Register variable[4]: Result */
       variable[4] = TAG_Bool(( variable[2] /*new_child*/==NIT_NULL) || VAL_ISA( variable[2] /*new_child*/, COLOR_PModule, ID_PModule)) /*cast PModule*/;
-      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Start___replace_child, LOCATE_parser_prod, 11026); nit_exit(1);}
-      variable[4] = variable[0];
-      ATTR_parser_nodes___Start____n_base(variable[4]) /*Start::_n_base*/ =  variable[2] /*new_child*/;
+      if (!UNTAG_Bool(variable[4])) { fprintf(stderr, "Assert%s failed", ""); fprintf(stderr, " in %s (%s:%d)\n", LOCATE_parser_prod___Start___replace_child, LOCATE_parser_prod, 11385); nit_exit(1);}
+      ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/ =  variable[2] /*new_child*/;
     }
     CALL_parser_prod___PNode___parent__eq( variable[1] /*old_child*/)( variable[1] /*old_child*/,  NIT_NULL /*null*/) /*PNode::parent=*/;
-    goto return_label986;
+    goto return_label1030;
   }
-  return_label986: while(false);
+  return_label1030: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Start___visit_all(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 11034, LOCATE_parser_prod___Start___visit_all};
+  struct trace_t trace = {NULL, NULL, 11393, LOCATE_parser_prod___Start___visit_all};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___Start____n_base(variable[3]) /*Start::_n_base*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___Start____n_base(variable[3]) /*Start::_n_base*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label987: while(false);
+  return_label1031: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Start___visit_all_reverse(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 11041, LOCATE_parser_prod___Start___visit_all_reverse};
+  struct trace_t trace = {NULL, NULL, 11400, LOCATE_parser_prod___Start___visit_all_reverse};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_parser_nodes___Start____n_base(variable[3]) /*Start::_n_base*/;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/;
+  /* Register variable[3]: Result */
   variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = ATTR_parser_nodes___Start____n_base(variable[3]) /*Start::_n_base*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/;
     CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*Visitor::visit*/;
   }
-  return_label988: while(false);
+  return_label1032: while(false);
   tracehead = trace.prev;
   return;
 }
 void parser_prod___Start___init(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 11011, LOCATE_parser_prod___Start___init};
-  val_t variable[5];
-  void **closurevariable = NULL;
+  struct trace_t trace = {NULL, NULL, 11370, LOCATE_parser_prod___Start___init};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_parser_prod;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
   if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_Start].i]) return;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___Start____n_base(variable[4]) /*Start::_n_base*/ =  variable[1] /*n_base*/;
-  variable[4] = variable[0];
-  ATTR_parser_nodes___Start____n_eof(variable[4]) /*Start::_n_eof*/ =  variable[2] /*n_eof*/;
-  return_label989: while(false);
+  /* Register variable[3]: Method return value and escape marker */
+  ATTR_parser_nodes___Start____n_base(variable[0]) /*Start::_n_base*/ =  variable[1] /*n_base*/;
+  ATTR_parser_nodes___Start____n_eof(variable[0]) /*Start::_n_eof*/ =  variable[2] /*n_eof*/;
+  return_label1033: while(false);
   init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_Start].i] = 1;
   tracehead = trace.prev;
   return;