tests: allow skipping tests based on engines

[nit.git] / c_src / icode___icode_base._sep.c

diff --git a/c_src/icode___icode_base._sep.c b/c_src/icode___icode_base._sep.c
index 0369898..9c96a9c 100644 (file)
--- a/c_src/icode___icode_base._sep.c
+++ b/c_src/icode___icode_base._sep.c
@@ -10,9 +10,10 @@ val_t icode___icode_base___IRegister___stype(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRegister___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:26 */
+  /* icode/icode_base.nit:26 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IRegister____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -33,11 +34,12 @@ void icode___icode_base___IRegister___init(val_t p0, val_t p1, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___IRegister___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:30 */
+  /* icode/icode_base.nit:30 */
   ATTR_icode___icode_base___IRegister____stype(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos0] = 1;
@@ -54,6 +56,7 @@ void icode___icode_base___IEscapeMark___init(val_t p0, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___IEscapeMark___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
   stack_frame_head = fra.me.prev;
   init_table[itpos1] = 1;
   return;
@@ -68,9 +71,10 @@ val_t icode___icode_base___IClosureDecl___closure(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IClosureDecl___closure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:40 */
+  /* icode/icode_base.nit:40 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IClosureDecl____closure(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -89,9 +93,10 @@ val_t icode___icode_base___IClosureDecl___default(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IClosureDecl___default;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:43 */
+  /* icode/icode_base.nit:43 */
   fra.me.REG[0] = ATTR_icode___icode_base___IClosureDecl____default(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -105,11 +110,12 @@ void icode___icode_base___IClosureDecl___default__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___IClosureDecl___default__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:43 */
+  /* icode/icode_base.nit:43 */
   ATTR_icode___icode_base___IClosureDecl____default(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -125,11 +131,12 @@ void icode___icode_base___IClosureDecl___init(val_t p0, val_t p1, int* init_tabl
   fra.me.meth = LOCATE_icode___icode_base___IClosureDecl___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:46 */
+  /* icode/icode_base.nit:46 */
   ATTR_icode___icode_base___IClosureDecl____closure(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos2] = 1;
@@ -145,9 +152,10 @@ val_t icode___icode_base___IRoutine___params(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___params;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:51 */
+  /* icode/icode_base.nit:51 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IRoutine____params(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -166,9 +174,10 @@ val_t icode___icode_base___IRoutine___closure_decls(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___closure_decls;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:54 */
+  /* icode/icode_base.nit:54 */
   fra.me.REG[0] = ATTR_icode___icode_base___IRoutine____closure_decls(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -182,11 +191,12 @@ void icode___icode_base___IRoutine___closure_decls__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___closure_decls__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:54 */
+  /* icode/icode_base.nit:54 */
   ATTR_icode___icode_base___IRoutine____closure_decls(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -201,9 +211,10 @@ val_t icode___icode_base___IRoutine___registers(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___registers;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:57 */
+  /* icode/icode_base.nit:57 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IRoutine____registers(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -222,9 +233,10 @@ val_t icode___icode_base___IRoutine___result(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___result;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:60 */
+  /* icode/icode_base.nit:60 */
   fra.me.REG[0] = ATTR_icode___icode_base___IRoutine____result(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -239,9 +251,10 @@ val_t icode___icode_base___IRoutine___escape_marks(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___escape_marks;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:63 */
+  /* icode/icode_base.nit:63 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IRoutine____escape_marks(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -261,9 +274,10 @@ val_t icode___icode_base___IRoutine___body(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___body;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:66 */
+  /* icode/icode_base.nit:66 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IRoutine____body(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -282,9 +296,10 @@ val_t icode___icode_base___IRoutine___location(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___location;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:69 */
+  /* icode/icode_base.nit:69 */
   fra.me.REG[0] = ATTR_icode___icode_base___IRoutine____location(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -298,11 +313,12 @@ void icode___icode_base___IRoutine___location__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___location__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:69 */
+  /* icode/icode_base.nit:69 */
   ATTR_icode___icode_base___IRoutine____location(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -318,16 +334,17 @@ void icode___icode_base___IRoutine___init(val_t p0, val_t p1, val_t p2, int* ini
   fra.me.meth = LOCATE_icode___icode_base___IRoutine___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:74 */
+  /* icode/icode_base.nit:74 */
   fra.me.REG[1] = CALL_standard___collection___array___Collection___to_a(fra.me.REG[1])(fra.me.REG[1]);
   ATTR_icode___icode_base___IRoutine____params(fra.me.REG[0]) = fra.me.REG[1];
-  /* ./icode//icode_base.nit:75 */
+  /* icode/icode_base.nit:75 */
   ATTR_icode___icode_base___IRoutine____result(fra.me.REG[0]) = fra.me.REG[2];
   stack_frame_head = fra.me.prev;
   init_table[itpos3] = 1;
@@ -344,13 +361,14 @@ void icode___icode_base___IClosureDef___init(val_t p0, val_t p1, val_t p2, int*
   fra.me.meth = LOCATE_icode___icode_base___IClosureDef___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:84 */
+  /* icode/icode_base.nit:84 */
   CALL_icode___icode_base___IRoutine___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos4] = 1;
@@ -365,7 +383,8 @@ val_t icode___icode_base___ICode___arity(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode___arity;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./icode//icode_base.nit:92 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* icode/icode_base.nit:92 */
   nit_abort("Deferred method called", NULL, LOCATE_icode___icode_base, 92);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
@@ -379,9 +398,10 @@ val_t icode___icode_base___ICode___result(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode___result;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:95 */
+  /* icode/icode_base.nit:95 */
   fra.me.REG[0] = ATTR_icode___icode_base___ICode____result(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -395,11 +415,12 @@ void icode___icode_base___ICode___result__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___ICode___result__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:95 */
+  /* icode/icode_base.nit:95 */
   ATTR_icode___icode_base___ICode____result(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -413,9 +434,10 @@ val_t icode___icode_base___ICode___location(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode___location;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:98 */
+  /* icode/icode_base.nit:98 */
   fra.me.REG[0] = ATTR_icode___icode_base___ICode____location(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -429,11 +451,12 @@ void icode___icode_base___ICode___location__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___ICode___location__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:98 */
+  /* icode/icode_base.nit:98 */
   ATTR_icode___icode_base___ICode____location(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -448,9 +471,10 @@ val_t icode___icode_base___ICode___is_pure(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:102 */
+  /* icode/icode_base.nit:102 */
   REGB0 = TAG_Bool(false);
   goto label1;
   label1: while(0);
@@ -468,6 +492,7 @@ void icode___icode_base___ICode___init(val_t p0, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___ICode___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
   stack_frame_head = fra.me.prev;
   init_table[itpos5] = 1;
   return;
@@ -482,9 +507,10 @@ val_t icode___icode_base___ICode0___arity(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode0___arity;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:108 */
+  /* icode/icode_base.nit:108 */
   REGB0 = TAG_Int(0);
   goto label1;
   label1: while(0);
@@ -501,9 +527,10 @@ val_t icode___icode_base___ICode1___arity(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode1___arity;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:114 */
+  /* icode/icode_base.nit:114 */
   REGB0 = TAG_Int(1);
   goto label1;
   label1: while(0);
@@ -520,9 +547,10 @@ val_t icode___icode_base___ICode1___expr(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode1___expr;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:116 */
+  /* icode/icode_base.nit:116 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICode1____expr(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -543,12 +571,13 @@ void icode___icode_base___ICode1___init(val_t p0, val_t p1, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___ICode1___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:119 */
+  /* icode/icode_base.nit:119 */
   fra.me.REG[2] = fra.me.REG[0];
   CALL_icode___icode_base___ICode___init(fra.me.REG[0])(fra.me.REG[0], init_table);
   ATTR_icode___icode_base___ICode1____expr(fra.me.REG[2]) = fra.me.REG[1];
@@ -566,9 +595,10 @@ val_t icode___icode_base___ICode2___arity(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode2___arity;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:125 */
+  /* icode/icode_base.nit:125 */
   REGB0 = TAG_Int(2);
   goto label1;
   label1: while(0);
@@ -585,9 +615,10 @@ val_t icode___icode_base___ICode2___expr1(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode2___expr1;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:127 */
+  /* icode/icode_base.nit:127 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICode2____expr1(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -607,9 +638,10 @@ val_t icode___icode_base___ICode2___expr2(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICode2___expr2;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:130 */
+  /* icode/icode_base.nit:130 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICode2____expr2(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -630,6 +662,7 @@ void icode___icode_base___ICode2___init(val_t p0, val_t p1, val_t p2, int* init_
   fra.me.meth = LOCATE_icode___icode_base___ICode2___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -637,12 +670,12 @@ void icode___icode_base___ICode2___init(val_t p0, val_t p1, val_t p2, int* init_
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:133 */
+  /* icode/icode_base.nit:133 */
   fra.me.REG[3] = fra.me.REG[0];
   CALL_icode___icode_base___ICode___init(fra.me.REG[0])(fra.me.REG[0], init_table);
-  /* ./icode//icode_base.nit:135 */
+  /* icode/icode_base.nit:135 */
   ATTR_icode___icode_base___ICode2____expr1(fra.me.REG[3]) = fra.me.REG[1];
-  /* ./icode//icode_base.nit:136 */
+  /* icode/icode_base.nit:136 */
   ATTR_icode___icode_base___ICode2____expr2(fra.me.REG[3]) = fra.me.REG[2];
   stack_frame_head = fra.me.prev;
   init_table[itpos7] = 1;
@@ -658,9 +691,10 @@ val_t icode___icode_base___ICodeN___arity(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICodeN___arity;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:143 */
+  /* icode/icode_base.nit:143 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICodeN____exprs(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -683,9 +717,10 @@ val_t icode___icode_base___ICodeN___exprs(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICodeN___exprs;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:145 */
+  /* icode/icode_base.nit:145 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICodeN____exprs(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -704,9 +739,10 @@ val_t icode___icode_base___ICodeN___closure_defs(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ICodeN___closure_defs;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:148 */
+  /* icode/icode_base.nit:148 */
   fra.me.REG[0] = ATTR_icode___icode_base___ICodeN____closure_defs(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -720,11 +756,12 @@ void icode___icode_base___ICodeN___closure_defs__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___ICodeN___closure_defs__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:148 */
+  /* icode/icode_base.nit:148 */
   ATTR_icode___icode_base___ICodeN____closure_defs(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -742,15 +779,16 @@ void icode___icode_base___ICodeN___init(val_t p0, val_t p1, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___ICodeN___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:151 */
+  /* icode/icode_base.nit:151 */
   fra.me.REG[2] = fra.me.REG[0];
   CALL_icode___icode_base___ICode___init(fra.me.REG[0])(fra.me.REG[0], init_table);
-  /* ./icode//icode_base.nit:153 */
+  /* icode/icode_base.nit:153 */
   REGB0 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -764,11 +802,11 @@ void icode___icode_base___ICodeN___init(val_t p0, val_t p1, int* init_table){
     }
   }
   if (UNTAG_Bool(REGB0)) {
-    /* ./icode//icode_base.nit:154 */
+    /* icode/icode_base.nit:154 */
     fra.me.REG[0] = NEW_Array_standard___collection___array___Array___init();
     ATTR_icode___icode_base___ICodeN____exprs(fra.me.REG[2]) = fra.me.REG[0];
   } else {
-    /* ./icode//icode_base.nit:156 */
+    /* icode/icode_base.nit:156 */
     ATTR_icode___icode_base___ICodeN____exprs(fra.me.REG[2]) = fra.me.REG[1];
   }
   stack_frame_head = fra.me.prev;
@@ -785,9 +823,10 @@ val_t icode___icode_base___ISeq___icodes(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ISeq___icodes;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:166 */
+  /* icode/icode_base.nit:166 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ISeq____icodes(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -806,9 +845,10 @@ val_t icode___icode_base___ISeq___iescape_mark(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___ISeq___iescape_mark;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:169 */
+  /* icode/icode_base.nit:169 */
   fra.me.REG[0] = ATTR_icode___icode_base___ISeq____iescape_mark(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -822,11 +862,12 @@ void icode___icode_base___ISeq___iescape_mark__eq(val_t p0, val_t p1){
   fra.me.meth = LOCATE_icode___icode_base___ISeq___iescape_mark__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:169 */
+  /* icode/icode_base.nit:169 */
   ATTR_icode___icode_base___ISeq____iescape_mark(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -842,6 +883,7 @@ void icode___icode_base___ISeq___init(val_t p0, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___ISeq___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
   stack_frame_head = fra.me.prev;
@@ -859,9 +901,10 @@ void icode___icode_base___ILoop___init(val_t p0, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___ILoop___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:179 */
+  /* icode/icode_base.nit:179 */
   CALL_icode___icode_base___ISeq___init(fra.me.REG[0])(fra.me.REG[0], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos10] = 1;
@@ -877,9 +920,10 @@ val_t icode___icode_base___IIf___then_seq(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IIf___then_seq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:186 */
+  /* icode/icode_base.nit:186 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IIf____then_seq(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -899,9 +943,10 @@ val_t icode___icode_base___IIf___else_seq(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IIf___else_seq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:188 */
+  /* icode/icode_base.nit:188 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IIf____else_seq(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -922,11 +967,12 @@ void icode___icode_base___IIf___init(val_t p0, val_t p1, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___IIf___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:190 */
+  /* icode/icode_base.nit:190 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos11] = 1;
@@ -942,9 +988,10 @@ val_t icode___icode_base___IEscape___iescape_mark(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IEscape___iescape_mark;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:196 */
+  /* icode/icode_base.nit:196 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IEscape____iescape_mark(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -965,11 +1012,12 @@ void icode___icode_base___IEscape___init(val_t p0, val_t p1, int* init_table){
   fra.me.meth = LOCATE_icode___icode_base___IEscape___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:199 */
+  /* icode/icode_base.nit:199 */
   ATTR_icode___icode_base___IEscape____iescape_mark(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos12] = 1;
@@ -985,9 +1033,10 @@ val_t icode___icode_base___IAbort___texts(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IAbort___texts;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:205 */
+  /* icode/icode_base.nit:205 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAbort____texts(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -1007,9 +1056,10 @@ val_t icode___icode_base___IAbort___module_location(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IAbort___module_location;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:208 */
+  /* icode/icode_base.nit:208 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAbort____module_location(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -1030,15 +1080,16 @@ void icode___icode_base___IAbort___init(val_t p0, val_t p1, val_t p2, int* init_
   fra.me.meth = LOCATE_icode___icode_base___IAbort___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:212 */
+  /* icode/icode_base.nit:212 */
   ATTR_icode___icode_base___IAbort____texts(fra.me.REG[0]) = fra.me.REG[1];
-  /* ./icode//icode_base.nit:213 */
+  /* icode/icode_base.nit:213 */
   ATTR_icode___icode_base___IAbort____module_location(fra.me.REG[0]) = fra.me.REG[2];
   stack_frame_head = fra.me.prev;
   init_table[itpos13] = 1;
@@ -1054,9 +1105,10 @@ val_t icode___icode_base___IAbsCall___property(val_t p0){
   fra.me.meth = LOCATE_icode___icode_base___IAbsCall___property;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:222 */
+  /* icode/icode_base.nit:222 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAbsCall____property(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -1066,6 +1118,48 @@ val_t icode___icode_base___IAbsCall___property(val_t p0){
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+val_t icode___icode_base___IAbsCall___is_explicit_from_extern(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_icode___icode_base;
+  fra.me.line = 225;
+  fra.me.meth = LOCATE_icode___icode_base___IAbsCall___is_explicit_from_extern;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  /* icode/icode_base.nit:225 */
+  REGB0 = TAG_Bool(ATTR_icode___icode_base___IAbsCall_____atis_explicit_from_extern(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "@is_explicit_from_extern", LOCATE_icode___icode_base, 225);
+  }
+  REGB0 = ATTR_icode___icode_base___IAbsCall_____atis_explicit_from_extern(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+void icode___icode_base___IAbsCall___is_explicit_from_extern__eq(val_t p0, val_t p1){
+  struct {struct stack_frame_t me;} fra;
+  val_t REGB0;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_icode___icode_base;
+  fra.me.line = 225;
+  fra.me.meth = LOCATE_icode___icode_base___IAbsCall___is_explicit_from_extern__eq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
+  fra.me.REG[0] = NIT_NULL;
+  fra.me.REG[0] = p0;
+  REGB0 = p1;
+  /* icode/icode_base.nit:225 */
+  ATTR_icode___icode_base___IAbsCall_____atis_explicit_from_extern(fra.me.REG[0]) = REGB0;
+  stack_frame_head = fra.me.prev;
+  return;
+}
 void icode___icode_base___IAbsCall___init(val_t p0, val_t p1, val_t p2, int* init_table){
   int itpos14 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_icode___icode_base___IAbsCall].i;
   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
@@ -1073,10 +1167,11 @@ void icode___icode_base___IAbsCall___init(val_t p0, val_t p1, val_t p2, int* ini
   if (init_table[itpos14]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 225;
+  fra.me.line = 228;
   fra.me.meth = LOCATE_icode___icode_base___IAbsCall___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1084,11 +1179,11 @@ void icode___icode_base___IAbsCall___init(val_t p0, val_t p1, val_t p2, int* ini
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:225 */
+  /* icode/icode_base.nit:228 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:227 */
+  /* icode/icode_base.nit:230 */
   CALL_icode___icode_base___ICodeN___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:228 */
+  /* icode/icode_base.nit:231 */
   ATTR_icode___icode_base___IAbsCall____property(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos14] = 1;
@@ -1101,17 +1196,18 @@ void icode___icode_base___ICall___init(val_t p0, val_t p1, val_t p2, int* init_t
   if (init_table[itpos15]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 236;
+  fra.me.line = 239;
   fra.me.meth = LOCATE_icode___icode_base___ICall___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:236 */
+  /* icode/icode_base.nit:239 */
   CALL_icode___icode_base___IAbsCall___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos15] = 1;
@@ -1124,17 +1220,18 @@ void icode___icode_base___ISuper___init(val_t p0, val_t p1, val_t p2, int* init_
   if (init_table[itpos16]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 243;
+  fra.me.line = 246;
   fra.me.meth = LOCATE_icode___icode_base___ISuper___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:243 */
+  /* icode/icode_base.nit:246 */
   CALL_icode___icode_base___IAbsCall___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos16] = 1;
@@ -1146,17 +1243,18 @@ val_t icode___icode_base___INew___stype(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 255;
+  fra.me.line = 258;
   fra.me.meth = LOCATE_icode___icode_base___INew___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:255 */
+  /* icode/icode_base.nit:258 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___INew____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 255);
+    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 258);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___INew____stype(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1169,10 +1267,11 @@ void icode___icode_base___INew___init(val_t p0, val_t p1, val_t p2, val_t p3, in
   if (init_table[itpos17]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 257;
+  fra.me.line = 260;
   fra.me.meth = LOCATE_icode___icode_base___INew___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 5;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1182,11 +1281,11 @@ void icode___icode_base___INew___init(val_t p0, val_t p1, val_t p2, val_t p3, in
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
   fra.me.REG[3] = p3;
-  /* ./icode//icode_base.nit:257 */
+  /* icode/icode_base.nit:260 */
   fra.me.REG[4] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:259 */
+  /* icode/icode_base.nit:262 */
   CALL_icode___icode_base___IAbsCall___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], fra.me.REG[3], init_table);
-  /* ./icode//icode_base.nit:260 */
+  /* icode/icode_base.nit:263 */
   ATTR_icode___icode_base___INew____stype(fra.me.REG[4]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos17] = 1;
@@ -1198,17 +1297,18 @@ val_t icode___icode_base___IAllocateInstance___stype(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 269;
+  fra.me.line = 272;
   fra.me.meth = LOCATE_icode___icode_base___IAllocateInstance___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:269 */
+  /* icode/icode_base.nit:272 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAllocateInstance____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 269);
+    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 272);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IAllocateInstance____stype(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1221,15 +1321,16 @@ void icode___icode_base___IAllocateInstance___init(val_t p0, val_t p1, int* init
   if (init_table[itpos18]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 271;
+  fra.me.line = 274;
   fra.me.meth = LOCATE_icode___icode_base___IAllocateInstance___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:273 */
+  /* icode/icode_base.nit:276 */
   ATTR_icode___icode_base___IAllocateInstance____stype(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos18] = 1;
@@ -1242,17 +1343,18 @@ void icode___icode_base___IStaticCall___init(val_t p0, val_t p1, val_t p2, int*
   if (init_table[itpos19]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 280;
+  fra.me.line = 283;
   fra.me.meth = LOCATE_icode___icode_base___IStaticCall___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:280 */
+  /* icode/icode_base.nit:283 */
   CALL_icode___icode_base___IAbsCall___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos19] = 1;
@@ -1264,17 +1366,18 @@ val_t icode___icode_base___ICheckInstance___stype(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 286;
+  fra.me.line = 289;
   fra.me.meth = LOCATE_icode___icode_base___ICheckInstance___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:286 */
+  /* icode/icode_base.nit:289 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICheckInstance____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 286);
+    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 289);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___ICheckInstance____stype(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1287,10 +1390,11 @@ void icode___icode_base___ICheckInstance___init(val_t p0, val_t p1, val_t p2, in
   if (init_table[itpos20]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 288;
+  fra.me.line = 291;
   fra.me.meth = LOCATE_icode___icode_base___ICheckInstance___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1298,11 +1402,11 @@ void icode___icode_base___ICheckInstance___init(val_t p0, val_t p1, val_t p2, in
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:288 */
+  /* icode/icode_base.nit:291 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:290 */
+  /* icode/icode_base.nit:293 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:291 */
+  /* icode/icode_base.nit:294 */
   ATTR_icode___icode_base___ICheckInstance____stype(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos20] = 1;
@@ -1314,17 +1418,18 @@ val_t icode___icode_base___IInitAttributes___stype(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 298;
+  fra.me.line = 301;
   fra.me.meth = LOCATE_icode___icode_base___IInitAttributes___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:298 */
+  /* icode/icode_base.nit:301 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IInitAttributes____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 298);
+    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 301);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IInitAttributes____stype(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1337,10 +1442,11 @@ void icode___icode_base___IInitAttributes___init(val_t p0, val_t p1, val_t p2, i
   if (init_table[itpos21]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 300;
+  fra.me.line = 303;
   fra.me.meth = LOCATE_icode___icode_base___IInitAttributes___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1348,11 +1454,11 @@ void icode___icode_base___IInitAttributes___init(val_t p0, val_t p1, val_t p2, i
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:300 */
+  /* icode/icode_base.nit:303 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:302 */
+  /* icode/icode_base.nit:305 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:303 */
+  /* icode/icode_base.nit:306 */
   ATTR_icode___icode_base___IInitAttributes____stype(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos21] = 1;
@@ -1364,17 +1470,18 @@ val_t icode___icode_base___IClosCall___closure_decl(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 311;
+  fra.me.line = 314;
   fra.me.meth = LOCATE_icode___icode_base___IClosCall___closure_decl;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:311 */
+  /* icode/icode_base.nit:314 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IClosCall____closure_decl(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_closure_decl", LOCATE_icode___icode_base, 311);
+    nit_abort("Uninitialized attribute %s", "_closure_decl", LOCATE_icode___icode_base, 314);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IClosCall____closure_decl(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1385,13 +1492,14 @@ val_t icode___icode_base___IClosCall___break_seq(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 314;
+  fra.me.line = 317;
   fra.me.meth = LOCATE_icode___icode_base___IClosCall___break_seq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:314 */
+  /* icode/icode_base.nit:317 */
   fra.me.REG[0] = ATTR_icode___icode_base___IClosCall____break_seq(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
@@ -1401,15 +1509,16 @@ void icode___icode_base___IClosCall___break_seq__eq(val_t p0, val_t p1){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 314;
+  fra.me.line = 317;
   fra.me.meth = LOCATE_icode___icode_base___IClosCall___break_seq__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:314 */
+  /* icode/icode_base.nit:317 */
   ATTR_icode___icode_base___IClosCall____break_seq(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
@@ -1421,10 +1530,11 @@ void icode___icode_base___IClosCall___init(val_t p0, val_t p1, val_t p2, int* in
   if (init_table[itpos22]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 317;
+  fra.me.line = 320;
   fra.me.meth = LOCATE_icode___icode_base___IClosCall___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1432,11 +1542,11 @@ void icode___icode_base___IClosCall___init(val_t p0, val_t p1, val_t p2, int* in
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:317 */
+  /* icode/icode_base.nit:320 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:319 */
+  /* icode/icode_base.nit:322 */
   CALL_icode___icode_base___ICodeN___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:320 */
+  /* icode/icode_base.nit:323 */
   ATTR_icode___icode_base___IClosCall____closure_decl(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos22] = 1;
@@ -1448,17 +1558,18 @@ val_t icode___icode_base___INative___method(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 329;
+  fra.me.line = 332;
   fra.me.meth = LOCATE_icode___icode_base___INative___method;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:329 */
+  /* icode/icode_base.nit:332 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___INative____method(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_method", LOCATE_icode___icode_base, 329);
+    nit_abort("Uninitialized attribute %s", "_method", LOCATE_icode___icode_base, 332);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___INative____method(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1474,10 +1585,11 @@ void icode___icode_base___INative___init(val_t p0, val_t p1, val_t p2, int* init
   if (init_table[itpos23]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 332;
+  fra.me.line = 335;
   fra.me.meth = LOCATE_icode___icode_base___INative___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 5;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1486,39 +1598,39 @@ void icode___icode_base___INative___init(val_t p0, val_t p1, val_t p2, int* init
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:332 */
+  /* icode/icode_base.nit:335 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:335 */
+  /* icode/icode_base.nit:338 */
   REGB0 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
-    nit_abort("Reciever is null", NULL, LOCATE_icode___icode_base, 335);
+    nit_abort("Reciever is null", NULL, LOCATE_icode___icode_base, 338);
   }
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[2])(fra.me.REG[2]);
   fra.me.REG[4] = CALL_metamodel___static_type___MMLocalProperty___signature(fra.me.REG[1])(fra.me.REG[1]);
   REGB1 = TAG_Bool(fra.me.REG[4]==NIT_NULL);
   if (UNTAG_Bool(REGB1)) {
-    nit_abort("Reciever is null", NULL, LOCATE_icode___icode_base, 335);
+    nit_abort("Reciever is null", NULL, LOCATE_icode___icode_base, 338);
   }
   REGB1 = CALL_metamodel___static_type___MMSignature___arity(fra.me.REG[4])(fra.me.REG[4]);
   REGB2 = TAG_Int(1);
-  /* ./../lib/standard//kernel.nit:218 */
+  /* ../lib/standard/kernel.nit:235 */
   REGB2 = TAG_Int(UNTAG_Int(REGB1)+UNTAG_Int(REGB2));
-  /* ./icode//icode_base.nit:335 */
+  /* icode/icode_base.nit:338 */
   REGB1 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB2));
   if (UNTAG_Bool(REGB1)) {
   } else {
-    /* ./../lib/standard//kernel.nit:210 */
+    /* ../lib/standard/kernel.nit:227 */
     REGB2 = TAG_Bool((REGB0)==(REGB2));
-    /* ./icode//icode_base.nit:335 */
+    /* icode/icode_base.nit:338 */
     REGB1 = REGB2;
   }
   if (UNTAG_Bool(REGB1)) {
   } else {
-    nit_abort("Assert failed", NULL, LOCATE_icode___icode_base, 335);
+    nit_abort("Assert failed", NULL, LOCATE_icode___icode_base, 338);
   }
-  /* ./icode//icode_base.nit:337 */
+  /* icode/icode_base.nit:340 */
   CALL_icode___icode_base___ICodeN___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:338 */
+  /* icode/icode_base.nit:341 */
   ATTR_icode___icode_base___INative____method(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos23] = 1;
@@ -1530,17 +1642,18 @@ val_t icode___icode_base___INative___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 341;
+  fra.me.line = 344;
   fra.me.meth = LOCATE_icode___icode_base___INative___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:341 */
+  /* icode/icode_base.nit:344 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___INative____is_pure(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_is_pure", LOCATE_icode___icode_base, 341);
+    nit_abort("Uninitialized attribute %s", "_is_pure", LOCATE_icode___icode_base, 344);
   }
   REGB0 = ATTR_icode___icode_base___INative____is_pure(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1552,14 +1665,15 @@ void icode___icode_base___INative___is_pure__eq(val_t p0, val_t p1){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 341;
+  fra.me.line = 344;
   fra.me.meth = LOCATE_icode___icode_base___INative___is_pure__eq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
   REGB0 = p1;
-  /* ./icode//icode_base.nit:341 */
+  /* icode/icode_base.nit:344 */
   ATTR_icode___icode_base___INative____is_pure(fra.me.REG[0]) = REGB0;
   stack_frame_head = fra.me.prev;
   return;
@@ -1570,17 +1684,18 @@ val_t icode___icode_base___IIntValue___value(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 347;
+  fra.me.line = 350;
   fra.me.meth = LOCATE_icode___icode_base___IIntValue___value;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:347 */
+  /* icode/icode_base.nit:350 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IIntValue____value(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 347);
+    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 350);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IIntValue____value(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1593,15 +1708,16 @@ void icode___icode_base___IIntValue___init(val_t p0, val_t p1, int* init_table){
   if (init_table[itpos24]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 350;
+  fra.me.line = 353;
   fra.me.meth = LOCATE_icode___icode_base___IIntValue___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:350 */
+  /* icode/icode_base.nit:353 */
   ATTR_icode___icode_base___IIntValue____value(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos24] = 1;
@@ -1613,13 +1729,14 @@ val_t icode___icode_base___IIntValue___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 352;
+  fra.me.line = 355;
   fra.me.meth = LOCATE_icode___icode_base___IIntValue___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:352 */
+  /* icode/icode_base.nit:355 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1632,17 +1749,18 @@ val_t icode___icode_base___IBoolValue___value(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 358;
+  fra.me.line = 361;
   fra.me.meth = LOCATE_icode___icode_base___IBoolValue___value;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:358 */
+  /* icode/icode_base.nit:361 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IBoolValue____value(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 358);
+    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 361);
   }
   REGB0 = ATTR_icode___icode_base___IBoolValue____value(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1656,14 +1774,15 @@ void icode___icode_base___IBoolValue___init(val_t p0, val_t p1, int* init_table)
   if (init_table[itpos25]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 361;
+  fra.me.line = 364;
   fra.me.meth = LOCATE_icode___icode_base___IBoolValue___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
   REGB0 = p1;
-  /* ./icode//icode_base.nit:361 */
+  /* icode/icode_base.nit:364 */
   ATTR_icode___icode_base___IBoolValue____value(fra.me.REG[0]) = REGB0;
   stack_frame_head = fra.me.prev;
   init_table[itpos25] = 1;
@@ -1675,13 +1794,14 @@ val_t icode___icode_base___IBoolValue___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 363;
+  fra.me.line = 366;
   fra.me.meth = LOCATE_icode___icode_base___IBoolValue___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:363 */
+  /* icode/icode_base.nit:366 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1694,17 +1814,18 @@ val_t icode___icode_base___IStringValue___value(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 369;
+  fra.me.line = 372;
   fra.me.meth = LOCATE_icode___icode_base___IStringValue___value;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:369 */
+  /* icode/icode_base.nit:372 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IStringValue____value(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 369);
+    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 372);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IStringValue____value(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1717,15 +1838,16 @@ void icode___icode_base___IStringValue___init(val_t p0, val_t p1, int* init_tabl
   if (init_table[itpos26]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 372;
+  fra.me.line = 375;
   fra.me.meth = LOCATE_icode___icode_base___IStringValue___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:372 */
+  /* icode/icode_base.nit:375 */
   ATTR_icode___icode_base___IStringValue____value(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos26] = 1;
@@ -1737,13 +1859,14 @@ val_t icode___icode_base___IStringValue___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 374;
+  fra.me.line = 377;
   fra.me.meth = LOCATE_icode___icode_base___IStringValue___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:374 */
+  /* icode/icode_base.nit:377 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1756,17 +1879,18 @@ val_t icode___icode_base___IFloatValue___value(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 380;
+  fra.me.line = 383;
   fra.me.meth = LOCATE_icode___icode_base___IFloatValue___value;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:380 */
+  /* icode/icode_base.nit:383 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IFloatValue____value(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 380);
+    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 383);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IFloatValue____value(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1779,15 +1903,16 @@ void icode___icode_base___IFloatValue___init(val_t p0, val_t p1, int* init_table
   if (init_table[itpos27]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 383;
+  fra.me.line = 386;
   fra.me.meth = LOCATE_icode___icode_base___IFloatValue___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:383 */
+  /* icode/icode_base.nit:386 */
   ATTR_icode___icode_base___IFloatValue____value(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos27] = 1;
@@ -1799,13 +1924,14 @@ val_t icode___icode_base___IFloatValue___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 385;
+  fra.me.line = 388;
   fra.me.meth = LOCATE_icode___icode_base___IFloatValue___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:385 */
+  /* icode/icode_base.nit:388 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1818,17 +1944,18 @@ val_t icode___icode_base___ICharValue___value(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 391;
+  fra.me.line = 394;
   fra.me.meth = LOCATE_icode___icode_base___ICharValue___value;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:391 */
+  /* icode/icode_base.nit:394 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ICharValue____value(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 391);
+    nit_abort("Uninitialized attribute %s", "_value", LOCATE_icode___icode_base, 394);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___ICharValue____value(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1841,15 +1968,16 @@ void icode___icode_base___ICharValue___init(val_t p0, val_t p1, int* init_table)
   if (init_table[itpos28]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 394;
+  fra.me.line = 397;
   fra.me.meth = LOCATE_icode___icode_base___ICharValue___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:394 */
+  /* icode/icode_base.nit:397 */
   ATTR_icode___icode_base___ICharValue____value(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos28] = 1;
@@ -1861,13 +1989,14 @@ val_t icode___icode_base___ICharValue___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 396;
+  fra.me.line = 399;
   fra.me.meth = LOCATE_icode___icode_base___ICharValue___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:396 */
+  /* icode/icode_base.nit:399 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1881,10 +2010,11 @@ void icode___icode_base___IMove___init(val_t p0, val_t p1, val_t p2, int* init_t
   if (init_table[itpos29]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 404;
+  fra.me.line = 407;
   fra.me.meth = LOCATE_icode___icode_base___IMove___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1892,11 +2022,11 @@ void icode___icode_base___IMove___init(val_t p0, val_t p1, val_t p2, int* init_t
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:404 */
+  /* icode/icode_base.nit:407 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:406 */
+  /* icode/icode_base.nit:409 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:407 */
+  /* icode/icode_base.nit:410 */
   ATTR_icode___icode_base___ICode____result(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos29] = 1;
@@ -1908,13 +2038,14 @@ val_t icode___icode_base___IMove___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 410;
+  fra.me.line = 413;
   fra.me.meth = LOCATE_icode___icode_base___IMove___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:410 */
+  /* icode/icode_base.nit:413 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1927,17 +2058,18 @@ val_t icode___icode_base___IAttrRead___property(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 417;
+  fra.me.line = 420;
   fra.me.meth = LOCATE_icode___icode_base___IAttrRead___property;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:417 */
+  /* icode/icode_base.nit:420 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAttrRead____property(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 417);
+    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 420);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IAttrRead____property(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -1950,10 +2082,11 @@ void icode___icode_base___IAttrRead___init(val_t p0, val_t p1, val_t p2, int* in
   if (init_table[itpos30]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 420;
+  fra.me.line = 423;
   fra.me.meth = LOCATE_icode___icode_base___IAttrRead___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -1961,11 +2094,11 @@ void icode___icode_base___IAttrRead___init(val_t p0, val_t p1, val_t p2, int* in
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:420 */
+  /* icode/icode_base.nit:423 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:422 */
+  /* icode/icode_base.nit:425 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:423 */
+  /* icode/icode_base.nit:426 */
   ATTR_icode___icode_base___IAttrRead____property(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos30] = 1;
@@ -1977,13 +2110,14 @@ val_t icode___icode_base___IAttrRead___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 426;
+  fra.me.line = 429;
   fra.me.meth = LOCATE_icode___icode_base___IAttrRead___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:426 */
+  /* icode/icode_base.nit:429 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -1996,17 +2130,18 @@ val_t icode___icode_base___IAttrWrite___property(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 433;
+  fra.me.line = 436;
   fra.me.meth = LOCATE_icode___icode_base___IAttrWrite___property;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:433 */
+  /* icode/icode_base.nit:436 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAttrWrite____property(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 433);
+    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 436);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IAttrWrite____property(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -2019,10 +2154,11 @@ void icode___icode_base___IAttrWrite___init(val_t p0, val_t p1, val_t p2, val_t
   if (init_table[itpos31]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 436;
+  fra.me.line = 439;
   fra.me.meth = LOCATE_icode___icode_base___IAttrWrite___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 5;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -2032,11 +2168,11 @@ void icode___icode_base___IAttrWrite___init(val_t p0, val_t p1, val_t p2, val_t
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
   fra.me.REG[3] = p3;
-  /* ./icode//icode_base.nit:436 */
+  /* icode/icode_base.nit:439 */
   fra.me.REG[4] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:438 */
+  /* icode/icode_base.nit:441 */
   CALL_icode___icode_base___ICode2___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], fra.me.REG[3], init_table);
-  /* ./icode//icode_base.nit:439 */
+  /* icode/icode_base.nit:442 */
   ATTR_icode___icode_base___IAttrWrite____property(fra.me.REG[4]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos31] = 1;
@@ -2048,17 +2184,18 @@ val_t icode___icode_base___IAttrIsset___property(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 448;
+  fra.me.line = 451;
   fra.me.meth = LOCATE_icode___icode_base___IAttrIsset___property;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:448 */
+  /* icode/icode_base.nit:451 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IAttrIsset____property(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 448);
+    nit_abort("Uninitialized attribute %s", "_property", LOCATE_icode___icode_base, 451);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IAttrIsset____property(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -2071,10 +2208,11 @@ void icode___icode_base___IAttrIsset___init(val_t p0, val_t p1, val_t p2, int* i
   if (init_table[itpos32]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 451;
+  fra.me.line = 454;
   fra.me.meth = LOCATE_icode___icode_base___IAttrIsset___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 4;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -2082,11 +2220,11 @@ void icode___icode_base___IAttrIsset___init(val_t p0, val_t p1, val_t p2, int* i
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:451 */
+  /* icode/icode_base.nit:454 */
   fra.me.REG[3] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:453 */
+  /* icode/icode_base.nit:456 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:454 */
+  /* icode/icode_base.nit:457 */
   ATTR_icode___icode_base___IAttrIsset____property(fra.me.REG[3]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos32] = 1;
@@ -2098,13 +2236,14 @@ val_t icode___icode_base___IAttrIsset___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 457;
+  fra.me.line = 460;
   fra.me.meth = LOCATE_icode___icode_base___IAttrIsset___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:457 */
+  /* icode/icode_base.nit:460 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -2117,17 +2256,18 @@ val_t icode___icode_base___ITypeCheck___stype(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 465;
+  fra.me.line = 468;
   fra.me.meth = LOCATE_icode___icode_base___ITypeCheck___stype;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:465 */
+  /* icode/icode_base.nit:468 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___ITypeCheck____stype(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 465);
+    nit_abort("Uninitialized attribute %s", "_stype", LOCATE_icode___icode_base, 468);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___ITypeCheck____stype(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -2140,10 +2280,11 @@ void icode___icode_base___ITypeCheck___init(val_t p0, val_t p1, val_t p2, val_t
   if (init_table[itpos33]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 468;
+  fra.me.line = 471;
   fra.me.meth = LOCATE_icode___icode_base___ITypeCheck___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 5;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
@@ -2153,11 +2294,11 @@ void icode___icode_base___ITypeCheck___init(val_t p0, val_t p1, val_t p2, val_t
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
   fra.me.REG[3] = p3;
-  /* ./icode//icode_base.nit:468 */
+  /* icode/icode_base.nit:471 */
   fra.me.REG[4] = fra.me.REG[0];
-  /* ./icode//icode_base.nit:470 */
+  /* icode/icode_base.nit:473 */
   CALL_icode___icode_base___ICode2___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
-  /* ./icode//icode_base.nit:471 */
+  /* icode/icode_base.nit:474 */
   ATTR_icode___icode_base___ITypeCheck____stype(fra.me.REG[4]) = fra.me.REG[3];
   stack_frame_head = fra.me.prev;
   init_table[itpos33] = 1;
@@ -2169,13 +2310,14 @@ val_t icode___icode_base___ITypeCheck___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 474;
+  fra.me.line = 477;
   fra.me.meth = LOCATE_icode___icode_base___ITypeCheck___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:474 */
+  /* icode/icode_base.nit:477 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -2189,17 +2331,18 @@ void icode___icode_base___IIs___init(val_t p0, val_t p1, val_t p2, int* init_tab
   if (init_table[itpos34]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 481;
+  fra.me.line = 484;
   fra.me.meth = LOCATE_icode___icode_base___IIs___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 3;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[2] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
   fra.me.REG[2] = p2;
-  /* ./icode//icode_base.nit:483 */
+  /* icode/icode_base.nit:486 */
   CALL_icode___icode_base___ICode2___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], fra.me.REG[2], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos34] = 1;
@@ -2211,13 +2354,14 @@ val_t icode___icode_base___IIs___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 486;
+  fra.me.line = 489;
   fra.me.meth = LOCATE_icode___icode_base___IIs___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:486 */
+  /* icode/icode_base.nit:489 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -2231,15 +2375,16 @@ void icode___icode_base___INot___init(val_t p0, val_t p1, int* init_table){
   if (init_table[itpos35]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 493;
+  fra.me.line = 496;
   fra.me.meth = LOCATE_icode___icode_base___INot___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:495 */
+  /* icode/icode_base.nit:498 */
   CALL_icode___icode_base___ICode1___init(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1], init_table);
   stack_frame_head = fra.me.prev;
   init_table[itpos35] = 1;
@@ -2251,13 +2396,14 @@ val_t icode___icode_base___INot___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 498;
+  fra.me.line = 501;
   fra.me.meth = LOCATE_icode___icode_base___INot___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:498 */
+  /* icode/icode_base.nit:501 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -2270,17 +2416,18 @@ val_t icode___icode_base___IOnce___body(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 505;
+  fra.me.line = 508;
   fra.me.meth = LOCATE_icode___icode_base___IOnce___body;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:505 */
+  /* icode/icode_base.nit:508 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IOnce____body(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_body", LOCATE_icode___icode_base, 505);
+    nit_abort("Uninitialized attribute %s", "_body", LOCATE_icode___icode_base, 508);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IOnce____body(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -2293,10 +2440,11 @@ void icode___icode_base___IOnce___init(val_t p0, int* init_table){
   if (init_table[itpos36]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 506;
+  fra.me.line = 509;
   fra.me.meth = LOCATE_icode___icode_base___IOnce___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
   stack_frame_head = fra.me.prev;
@@ -2309,17 +2457,18 @@ val_t icode___icode_base___IHasClos___closure_decl(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 512;
+  fra.me.line = 515;
   fra.me.meth = LOCATE_icode___icode_base___IHasClos___closure_decl;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:512 */
+  /* icode/icode_base.nit:515 */
   REGB0 = TAG_Bool(ATTR_icode___icode_base___IHasClos____closure_decl(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_closure_decl", LOCATE_icode___icode_base, 512);
+    nit_abort("Uninitialized attribute %s", "_closure_decl", LOCATE_icode___icode_base, 515);
   }
   fra.me.REG[0] = ATTR_icode___icode_base___IHasClos____closure_decl(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
@@ -2332,15 +2481,16 @@ void icode___icode_base___IHasClos___init(val_t p0, val_t p1, int* init_table){
   if (init_table[itpos37]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 515;
+  fra.me.line = 518;
   fra.me.meth = LOCATE_icode___icode_base___IHasClos___init;
   fra.me.has_broke = 0;
   fra.me.REG_size = 2;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[1] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./icode//icode_base.nit:517 */
+  /* icode/icode_base.nit:520 */
   ATTR_icode___icode_base___IHasClos____closure_decl(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos37] = 1;
@@ -2352,13 +2502,14 @@ val_t icode___icode_base___IHasClos___is_pure(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 520;
+  fra.me.line = 523;
   fra.me.meth = LOCATE_icode___icode_base___IHasClos___is_pure;
   fra.me.has_broke = 0;
   fra.me.REG_size = 1;
+  fra.me.nitni_local_ref_head = NULL;
   fra.me.REG[0] = NIT_NULL;
   fra.me.REG[0] = p0;
-  /* ./icode//icode_base.nit:520 */
+  /* icode/icode_base.nit:523 */
   REGB0 = TAG_Bool(true);
   goto label1;
   label1: while(0);
@@ -2370,12 +2521,13 @@ val_t icode___icode_base___MMAttribute___iroutine(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 526;
+  fra.me.line = 529;
   fra.me.meth = LOCATE_icode___icode_base___MMAttribute___iroutine;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./icode//icode_base.nit:526 */
-  nit_abort("Deferred method called", NULL, LOCATE_icode___icode_base, 526);
+  fra.me.nitni_local_ref_head = NULL;
+  /* icode/icode_base.nit:529 */
+  nit_abort("Deferred method called", NULL, LOCATE_icode___icode_base, 529);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
@@ -2384,12 +2536,13 @@ val_t icode___icode_base___MMMethod___iroutine(val_t p0){
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_icode___icode_base;
-  fra.me.line = 532;
+  fra.me.line = 535;
   fra.me.meth = LOCATE_icode___icode_base___MMMethod___iroutine;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./icode//icode_base.nit:532 */
-  nit_abort("Deferred method called", NULL, LOCATE_icode___icode_base, 532);
+  fra.me.nitni_local_ref_head = NULL;
+  /* icode/icode_base.nit:535 */
+  nit_abort("Deferred method called", NULL, LOCATE_icode___icode_base, 535);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }