doc: update Makefile to run nitdoc with extended options

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

diff --git a/c_src/standard___collection___abstract_collection._sep.c b/c_src/standard___collection___abstract_collection._sep.c
index 038e34f..258ae9d 100644 (file)
--- a/c_src/standard___collection___abstract_collection._sep.c
+++ b/c_src/standard___collection___abstract_collection._sep.c
@@ -1,5 +1,6 @@
 /* This C file is generated by NIT to compile module standard___collection___abstract_collection. */
 #include "standard___collection___abstract_collection._sep.h"
+static const char LOCATE_standard___collection___abstract_collection___Collection___iterator[] = "abstract_collection::Collection::iterator";
 val_t standard___collection___abstract_collection___Collection___iterator(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -9,11 +10,13 @@ val_t standard___collection___abstract_collection___Collection___iterator(val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___iterator;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:42 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:42 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 42);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___iterate[] = "abstract_collection::Collection::iterate";
 void standard___collection___abstract_collection___Collection___iterate(val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -25,28 +28,29 @@ void standard___collection___abstract_collection___Collection___iterate(val_t p0
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___iterate;
   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.closure_ctx = closctx_param;
   fra.me.closure_funs = CREG;
   fra.me.REG[0] = p0;
   CREG[0] = clos_fun0;
-  /* ./../lib/standard//collection//abstract_collection.nit:49 */
+  /* ../lib/standard/collection/abstract_collection.nit:49 */
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
-  /* ./../lib/standard//collection//abstract_collection.nit:50 */
+  /* ../lib/standard/collection/abstract_collection.nit:50 */
   while(1) {
     REGB0 = CALL_standard___collection___abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
     if (UNTAG_Bool(REGB0)) {
-      /* ./../lib/standard//collection//abstract_collection.nit:51 */
+      /* ../lib/standard/collection/abstract_collection.nit:51 */
       fra.me.REG[1] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
       ((void (*)(struct stack_frame_t *, val_t))(CREG[0]))(closctx_param, fra.me.REG[1]);
       if (closctx_param->has_broke) {
         goto label1;
       }
-      /* ./../lib/standard//collection//abstract_collection.nit:52 */
+      /* ../lib/standard/collection/abstract_collection.nit:52 */
       CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
     } else {
-      /* ./../lib/standard//collection//abstract_collection.nit:50 */
+      /* ../lib/standard/collection/abstract_collection.nit:50 */
       goto label2;
     }
   }
@@ -55,6 +59,7 @@ void standard___collection___abstract_collection___Collection___iterate(val_t p0
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___is_empty[] = "abstract_collection::Collection::is_empty";
 val_t standard___collection___abstract_collection___Collection___is_empty(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -64,11 +69,13 @@ val_t standard___collection___abstract_collection___Collection___is_empty(val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___is_empty;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:56 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:56 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 56);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___length[] = "abstract_collection::Collection::length";
 val_t standard___collection___abstract_collection___Collection___length(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -78,11 +85,13 @@ val_t standard___collection___abstract_collection___Collection___length(val_t p0
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___length;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:59 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:59 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 59);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___has[] = "abstract_collection::Collection::has";
 val_t standard___collection___abstract_collection___Collection___has(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -92,11 +101,13 @@ val_t standard___collection___abstract_collection___Collection___has(val_t p0, v
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___has;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:62 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:62 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 62);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___has_only[] = "abstract_collection::Collection::has_only";
 val_t standard___collection___abstract_collection___Collection___has_only(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -106,11 +117,13 @@ val_t standard___collection___abstract_collection___Collection___has_only(val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___has_only;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:66 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:66 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 66);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___count[] = "abstract_collection::Collection::count";
 val_t standard___collection___abstract_collection___Collection___count(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -120,11 +133,13 @@ val_t standard___collection___abstract_collection___Collection___count(val_t p0,
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___count;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:71 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:71 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 71);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Collection___first[] = "abstract_collection::Collection::first";
 val_t standard___collection___abstract_collection___Collection___first(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -134,11 +149,13 @@ val_t standard___collection___abstract_collection___Collection___first(val_t p0)
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Collection___first;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:75 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:75 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 75);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___is_empty[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::is_empty)";
 val_t standard___collection___abstract_collection___NaiveCollection___is_empty(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -151,17 +168,18 @@ val_t standard___collection___abstract_collection___NaiveCollection___is_empty(v
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___is_empty;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:83 */
+  /* ../lib/standard/collection/abstract_collection.nit:83 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[0])(fra.me.REG[0]);
   REGB1 = TAG_Int(0);
   REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
   if (UNTAG_Bool(REGB2)) {
   } else {
-    /* ./../lib/standard//kernel.nit:210 */
+    /* ../lib/standard/kernel.nit:230 */
     REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ./../lib/standard//collection//abstract_collection.nit:83 */
+    /* ../lib/standard/collection/abstract_collection.nit:83 */
     REGB2 = REGB1;
   }
   goto label1;
@@ -169,6 +187,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___is_empty(v
   stack_frame_head = fra.me.prev;
   return REGB2;
 }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___length[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::length)";
 val_t standard___collection___abstract_collection___NaiveCollection___length(val_t p0){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -179,14 +198,15 @@ val_t standard___collection___abstract_collection___NaiveCollection___length(val
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___length;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:87 */
+  /* ../lib/standard/collection/abstract_collection.nit:87 */
   REGB0 = TAG_Int(0);
   fra.me.REG[1] = REGB0;
   CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___collection___abstract_collection___NaiveCollection___length_1));
-  /* ./../lib/standard//collection//abstract_collection.nit:89 */
+  /* ../lib/standard/collection/abstract_collection.nit:89 */
   REGB0 = fra.me.REG[1];
   goto label2;
   label2: while(0);
@@ -198,26 +218,28 @@ val_t standard___collection___abstract_collection___NaiveCollection___length(val
     val_t REGB0;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:88 */
+    /* ../lib/standard/collection/abstract_collection.nit:88 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___length;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
     fra.me.REG[0] = p0;
     CREG[0] = clos_fun0;
     REGB0 = TAG_Int(1);
-    /* ./../lib/standard//kernel.nit:218 */
+    /* ../lib/standard/kernel.nit:238 */
     REGB0 = TAG_Int(UNTAG_Int(closctx->REG[1])+UNTAG_Int(REGB0));
-    /* ./../lib/standard//collection//abstract_collection.nit:88 */
+    /* ../lib/standard/collection/abstract_collection.nit:88 */
     closctx->REG[1] = REGB0;
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___has[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::has)";
 val_t standard___collection___abstract_collection___NaiveCollection___has(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -228,6 +250,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___has;
   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;
@@ -237,8 +260,8 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
     case 0: break;
     case 1: (&(fra.me))->has_broke = 0; goto label3;
   }
-  /* ./../lib/standard//collection//abstract_collection.nit:95 */
-  REGB0 = TAG_Bool(false);
+  /* ../lib/standard/collection/abstract_collection.nit:95 */
+  REGB0 = TAG_Bool(0);
   fra.me.REG[0] = REGB0;
   goto label3;
   label3: while(0);
@@ -251,13 +274,14 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
     val_t REGB1;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:94 */
+    /* ../lib/standard/collection/abstract_collection.nit:94 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___has;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
@@ -268,7 +292,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
     } else {
       REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
       if (UNTAG_Bool(REGB1)) {
-        REGB1 = TAG_Bool(false);
+        REGB1 = TAG_Bool(0);
         REGB0 = REGB1;
       } else {
         REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], closctx->REG[1]);
@@ -276,7 +300,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
       }
     }
     if (UNTAG_Bool(REGB0)) {
-      REGB0 = TAG_Bool(true);
+      REGB0 = TAG_Bool(1);
       closctx->REG[0] = REGB0;
       closctx->has_broke = 1;
       goto label2;
@@ -285,6 +309,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has(val_t
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___has_only[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::has_only)";
 val_t standard___collection___abstract_collection___NaiveCollection___has_only(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -295,6 +320,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___has_only;
   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;
@@ -304,8 +330,8 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
     case 0: break;
     case 1: (&(fra.me))->has_broke = 0; goto label3;
   }
-  /* ./../lib/standard//collection//abstract_collection.nit:101 */
-  REGB0 = TAG_Bool(true);
+  /* ../lib/standard/collection/abstract_collection.nit:101 */
+  REGB0 = TAG_Bool(1);
   fra.me.REG[0] = REGB0;
   goto label3;
   label3: while(0);
@@ -318,13 +344,14 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
     val_t REGB1;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:100 */
+    /* ../lib/standard/collection/abstract_collection.nit:100 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___has_only;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
@@ -335,7 +362,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
     } else {
       REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
       if (UNTAG_Bool(REGB1)) {
-        REGB1 = TAG_Bool(false);
+        REGB1 = TAG_Bool(0);
         REGB0 = REGB1;
       } else {
         REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], closctx->REG[1]);
@@ -344,7 +371,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
     }
     REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
     if (UNTAG_Bool(REGB0)) {
-      REGB0 = TAG_Bool(false);
+      REGB0 = TAG_Bool(0);
       closctx->REG[0] = REGB0;
       closctx->has_broke = 1;
       goto label2;
@@ -353,6 +380,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___has_only(v
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___count[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::count)";
 val_t standard___collection___abstract_collection___NaiveCollection___count(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
   val_t REGB0;
@@ -363,16 +391,17 @@ val_t standard___collection___abstract_collection___NaiveCollection___count(val_
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___count;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:106 */
+  /* ../lib/standard/collection/abstract_collection.nit:106 */
   REGB0 = TAG_Int(0);
   fra.me.REG[2] = REGB0;
   CALL_standard___collection___abstract_collection___Collection___iterate(fra.me.REG[0])(fra.me.REG[0], (&(fra.me)), ((fun_t)OC_standard___collection___abstract_collection___NaiveCollection___count_1));
-  /* ./../lib/standard//collection//abstract_collection.nit:108 */
+  /* ../lib/standard/collection/abstract_collection.nit:108 */
   REGB0 = fra.me.REG[2];
   goto label2;
   label2: while(0);
@@ -385,13 +414,14 @@ val_t standard___collection___abstract_collection___NaiveCollection___count(val_
     val_t REGB1;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:107 */
+    /* ../lib/standard/collection/abstract_collection.nit:107 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___count;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
@@ -402,7 +432,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___count(val_
     } else {
       REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
       if (UNTAG_Bool(REGB1)) {
-        REGB1 = TAG_Bool(false);
+        REGB1 = TAG_Bool(0);
         REGB0 = REGB1;
       } else {
         REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], closctx->REG[1]);
@@ -411,14 +441,15 @@ val_t standard___collection___abstract_collection___NaiveCollection___count(val_
     }
     if (UNTAG_Bool(REGB0)) {
       REGB0 = TAG_Int(1);
-      /* ./../lib/standard//kernel.nit:218 */
+      /* ../lib/standard/kernel.nit:238 */
       REGB0 = TAG_Int(UNTAG_Int(closctx->REG[2])+UNTAG_Int(REGB0));
-      /* ./../lib/standard//collection//abstract_collection.nit:107 */
+      /* ../lib/standard/collection/abstract_collection.nit:107 */
       closctx->REG[2] = REGB0;
     }
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___NaiveCollection___first[] = "abstract_collection::NaiveCollection::(abstract_collection::Collection::first)";
 val_t standard___collection___abstract_collection___NaiveCollection___first(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -431,9 +462,10 @@ val_t standard___collection___abstract_collection___NaiveCollection___first(val_
   fra.me.meth = LOCATE_standard___collection___abstract_collection___NaiveCollection___first;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:113 */
+  /* ../lib/standard/collection/abstract_collection.nit:113 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[0])(fra.me.REG[0]);
   REGB1 = TAG_Int(0);
   REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
@@ -441,14 +473,14 @@ val_t standard___collection___abstract_collection___NaiveCollection___first(val_
   } else {
     nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
   }
-  /* ./../lib/standard//kernel.nit:217 */
+  /* ../lib/standard/kernel.nit:237 */
   REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ./../lib/standard//collection//abstract_collection.nit:113 */
+  /* ../lib/standard/collection/abstract_collection.nit:113 */
   if (UNTAG_Bool(REGB1)) {
   } else {
     nit_abort("Assert failed", NULL, LOCATE_standard___collection___abstract_collection, 113);
   }
-  /* ./../lib/standard//collection//abstract_collection.nit:114 */
+  /* ../lib/standard/collection/abstract_collection.nit:114 */
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
   goto label1;
@@ -456,6 +488,7 @@ val_t standard___collection___abstract_collection___NaiveCollection___first(val_
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Iterator___item[] = "abstract_collection::Iterator::item";
 val_t standard___collection___abstract_collection___Iterator___item(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -465,11 +498,13 @@ val_t standard___collection___abstract_collection___Iterator___item(val_t p0){
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Iterator___item;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:121 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:121 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 121);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Iterator___next[] = "abstract_collection::Iterator::next";
 void standard___collection___abstract_collection___Iterator___next(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -479,11 +514,13 @@ void standard___collection___abstract_collection___Iterator___next(val_t p0){
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Iterator___next;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:125 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:125 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 125);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Iterator___is_ok[] = "abstract_collection::Iterator::is_ok";
 val_t standard___collection___abstract_collection___Iterator___is_ok(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -493,11 +530,13 @@ val_t standard___collection___abstract_collection___Iterator___is_ok(val_t p0){
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Iterator___is_ok;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:129 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:129 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 129);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___first[] = "abstract_collection::Container::(abstract_collection::Collection::first)";
 val_t standard___collection___abstract_collection___Container___first(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -507,15 +546,17 @@ val_t standard___collection___abstract_collection___Container___first(val_t p0){
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___first;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:137 */
+  /* ../lib/standard/collection/abstract_collection.nit:137 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]);
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___is_empty[] = "abstract_collection::Container::(abstract_collection::Collection::is_empty)";
 val_t standard___collection___abstract_collection___Container___is_empty(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -526,15 +567,17 @@ val_t standard___collection___abstract_collection___Container___is_empty(val_t p
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___is_empty;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:139 */
-  REGB0 = TAG_Bool(false);
+  /* ../lib/standard/collection/abstract_collection.nit:139 */
+  REGB0 = TAG_Bool(0);
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___length[] = "abstract_collection::Container::(abstract_collection::Collection::length)";
 val_t standard___collection___abstract_collection___Container___length(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -545,15 +588,17 @@ val_t standard___collection___abstract_collection___Container___length(val_t p0)
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___length;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:141 */
+  /* ../lib/standard/collection/abstract_collection.nit:141 */
   REGB0 = TAG_Int(1);
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___has[] = "abstract_collection::Container::(abstract_collection::Collection::has)";
 val_t standard___collection___abstract_collection___Container___has(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -565,18 +610,19 @@ val_t standard___collection___abstract_collection___Container___has(val_t p0, va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___has;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:143 */
+  /* ../lib/standard/collection/abstract_collection.nit:143 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]);
   REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[0],fra.me.REG[1]));
   if (UNTAG_Bool(REGB0)) {
   } else {
     REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
     if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(false);
+      REGB1 = TAG_Bool(0);
       REGB0 = REGB1;
     } else {
       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
@@ -588,6 +634,7 @@ val_t standard___collection___abstract_collection___Container___has(val_t p0, va
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___has_only[] = "abstract_collection::Container::(abstract_collection::Collection::has_only)";
 val_t standard___collection___abstract_collection___Container___has_only(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -599,18 +646,19 @@ val_t standard___collection___abstract_collection___Container___has_only(val_t p
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___has_only;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:145 */
+  /* ../lib/standard/collection/abstract_collection.nit:145 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]);
   REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[0],fra.me.REG[1]));
   if (UNTAG_Bool(REGB0)) {
   } else {
     REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
     if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(false);
+      REGB1 = TAG_Bool(0);
       REGB0 = REGB1;
     } else {
       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
@@ -622,6 +670,7 @@ val_t standard___collection___abstract_collection___Container___has_only(val_t p
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___count[] = "abstract_collection::Container::(abstract_collection::Collection::count)";
 val_t standard___collection___abstract_collection___Container___count(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -633,18 +682,19 @@ val_t standard___collection___abstract_collection___Container___count(val_t p0,
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___count;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:149 */
+  /* ../lib/standard/collection/abstract_collection.nit:149 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]);
   REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[0],fra.me.REG[1]));
   if (UNTAG_Bool(REGB0)) {
   } else {
     REGB1 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
     if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(false);
+      REGB1 = TAG_Bool(0);
       REGB0 = REGB1;
     } else {
       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
@@ -652,11 +702,11 @@ val_t standard___collection___abstract_collection___Container___count(val_t p0,
     }
   }
   if (UNTAG_Bool(REGB0)) {
-    /* ./../lib/standard//collection//abstract_collection.nit:150 */
+    /* ../lib/standard/collection/abstract_collection.nit:150 */
     REGB0 = TAG_Int(1);
     goto label1;
   } else {
-    /* ./../lib/standard//collection//abstract_collection.nit:152 */
+    /* ../lib/standard/collection/abstract_collection.nit:152 */
     REGB1 = TAG_Int(0);
     REGB0 = REGB1;
     goto label1;
@@ -665,6 +715,7 @@ val_t standard___collection___abstract_collection___Container___count(val_t p0,
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___iterator[] = "abstract_collection::Container::(abstract_collection::Collection::iterator)";
 val_t standard___collection___abstract_collection___Container___iterator(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -674,15 +725,17 @@ val_t standard___collection___abstract_collection___Container___iterator(val_t p
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___iterator;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:156 */
+  /* ../lib/standard/collection/abstract_collection.nit:156 */
   fra.me.REG[0] = NEW_ContainerIterator_standard___collection___abstract_collection___ContainerIterator___init(fra.me.REG[0]);
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___init[] = "abstract_collection::Container::init";
 void standard___collection___abstract_collection___Container___init(val_t p0, val_t p1, int* init_table){
   int itpos0 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___Container].i;
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
@@ -694,16 +747,18 @@ void standard___collection___abstract_collection___Container___init(val_t p0, va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___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;
-  /* ./../lib/standard//collection//abstract_collection.nit:159 */
+  /* ../lib/standard/collection/abstract_collection.nit:159 */
   ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos0] = 1;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___item[] = "abstract_collection::Container::item";
 val_t standard___collection___abstract_collection___Container___item(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -713,13 +768,15 @@ val_t standard___collection___abstract_collection___Container___item(val_t p0){
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___item;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:161 */
+  /* ../lib/standard/collection/abstract_collection.nit:161 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Container___item__eq[] = "abstract_collection::Container::item=";
 void standard___collection___abstract_collection___Container___item__eq(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
@@ -729,15 +786,17 @@ void standard___collection___abstract_collection___Container___item__eq(val_t p0
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Container___item__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;
-  /* ./../lib/standard//collection//abstract_collection.nit:161 */
+  /* ../lib/standard/collection/abstract_collection.nit:161 */
   ATTR_standard___collection___abstract_collection___Container____item(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___ContainerIterator___item[] = "abstract_collection::ContainerIterator::(abstract_collection::Iterator::item)";
 val_t standard___collection___abstract_collection___ContainerIterator___item(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -748,9 +807,10 @@ val_t standard___collection___abstract_collection___ContainerIterator___item(val
   fra.me.meth = LOCATE_standard___collection___abstract_collection___ContainerIterator___item;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:168 */
+  /* ../lib/standard/collection/abstract_collection.nit:168 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___ContainerIterator____container(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -763,6 +823,7 @@ val_t standard___collection___abstract_collection___ContainerIterator___item(val
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___ContainerIterator___next[] = "abstract_collection::ContainerIterator::(abstract_collection::Iterator::next)";
 void standard___collection___abstract_collection___ContainerIterator___next(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -773,14 +834,16 @@ void standard___collection___abstract_collection___ContainerIterator___next(val_
   fra.me.meth = LOCATE_standard___collection___abstract_collection___ContainerIterator___next;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:170 */
-  REGB0 = TAG_Bool(false);
+  /* ../lib/standard/collection/abstract_collection.nit:170 */
+  REGB0 = TAG_Bool(0);
   ATTR_standard___collection___abstract_collection___ContainerIterator____is_ok(fra.me.REG[0]) = REGB0;
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___ContainerIterator___init[] = "abstract_collection::ContainerIterator::init";
 void standard___collection___abstract_collection___ContainerIterator___init(val_t p0, val_t p1, int* init_table){
   int itpos1 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___ContainerIterator].i;
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
@@ -792,16 +855,18 @@ void standard___collection___abstract_collection___ContainerIterator___init(val_
   fra.me.meth = LOCATE_standard___collection___abstract_collection___ContainerIterator___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;
-  /* ./../lib/standard//collection//abstract_collection.nit:172 */
+  /* ../lib/standard/collection/abstract_collection.nit:172 */
   ATTR_standard___collection___abstract_collection___ContainerIterator____container(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   init_table[itpos1] = 1;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___ContainerIterator___is_ok[] = "abstract_collection::ContainerIterator::(abstract_collection::Iterator::is_ok)";
 val_t standard___collection___abstract_collection___ContainerIterator___is_ok(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -812,9 +877,10 @@ val_t standard___collection___abstract_collection___ContainerIterator___is_ok(va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___ContainerIterator___is_ok;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:174 */
+  /* ../lib/standard/collection/abstract_collection.nit:174 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___ContainerIterator____is_ok(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
@@ -824,6 +890,7 @@ val_t standard___collection___abstract_collection___ContainerIterator___is_ok(va
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___RemovableCollection___clear[] = "abstract_collection::RemovableCollection::clear";
 void standard___collection___abstract_collection___RemovableCollection___clear(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -833,11 +900,13 @@ void standard___collection___abstract_collection___RemovableCollection___clear(v
   fra.me.meth = LOCATE_standard___collection___abstract_collection___RemovableCollection___clear;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:182 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:182 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 182);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___RemovableCollection___remove[] = "abstract_collection::RemovableCollection::remove";
 void standard___collection___abstract_collection___RemovableCollection___remove(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -847,11 +916,13 @@ void standard___collection___abstract_collection___RemovableCollection___remove(
   fra.me.meth = LOCATE_standard___collection___abstract_collection___RemovableCollection___remove;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:185 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:185 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 185);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___RemovableCollection___remove_all[] = "abstract_collection::RemovableCollection::remove_all";
 void standard___collection___abstract_collection___RemovableCollection___remove_all(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -862,11 +933,12 @@ void standard___collection___abstract_collection___RemovableCollection___remove_
   fra.me.meth = LOCATE_standard___collection___abstract_collection___RemovableCollection___remove_all;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:189 */
+  /* ../lib/standard/collection/abstract_collection.nit:189 */
   while(1) {
     REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
     if (UNTAG_Bool(REGB0)) {
@@ -879,6 +951,7 @@ void standard___collection___abstract_collection___RemovableCollection___remove_
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___SimpleCollection___add[] = "abstract_collection::SimpleCollection::add";
 void standard___collection___abstract_collection___SimpleCollection___add(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -888,11 +961,13 @@ void standard___collection___abstract_collection___SimpleCollection___add(val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SimpleCollection___add;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:195 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:195 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 195);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___SimpleCollection___add_all[] = "abstract_collection::SimpleCollection::add_all";
 void standard___collection___abstract_collection___SimpleCollection___add_all(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
@@ -902,6 +977,7 @@ void standard___collection___abstract_collection___SimpleCollection___add_all(va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SimpleCollection___add_all;
   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;
@@ -914,13 +990,14 @@ void standard___collection___abstract_collection___SimpleCollection___add_all(va
     struct {struct stack_frame_t me;} fra;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:200 */
+    /* ../lib/standard/collection/abstract_collection.nit:200 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___SimpleCollection___add_all;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
@@ -930,6 +1007,7 @@ void standard___collection___abstract_collection___SimpleCollection___add_all(va
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___Set___has_only[] = "abstract_collection::Set::(abstract_collection::Collection::has_only)";
 val_t standard___collection___abstract_collection___Set___has_only(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -943,45 +1021,46 @@ val_t standard___collection___abstract_collection___Set___has_only(val_t p0, val
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Set___has_only;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:217 */
+  /* ../lib/standard/collection/abstract_collection.nit:217 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[0])(fra.me.REG[0]);
-  /* ./../lib/standard//collection//abstract_collection.nit:218 */
+  /* ../lib/standard/collection/abstract_collection.nit:218 */
   REGB1 = TAG_Int(1);
   REGB2 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
   if (UNTAG_Bool(REGB2)) {
   } else {
-    /* ./../lib/standard//kernel.nit:210 */
+    /* ../lib/standard/kernel.nit:230 */
     REGB1 = TAG_Bool((REGB0)==(REGB1));
-    /* ./../lib/standard//collection//abstract_collection.nit:218 */
+    /* ../lib/standard/collection/abstract_collection.nit:218 */
     REGB2 = REGB1;
   }
   if (UNTAG_Bool(REGB2)) {
-    /* ./../lib/standard//collection//abstract_collection.nit:219 */
+    /* ../lib/standard/collection/abstract_collection.nit:219 */
     REGB2 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
     goto label1;
   } else {
-    /* ./../lib/standard//collection//abstract_collection.nit:220 */
+    /* ../lib/standard/collection/abstract_collection.nit:220 */
     REGB1 = TAG_Int(0);
     REGB3 = TAG_Bool(IS_EQUAL_OO(REGB0,REGB1));
     if (UNTAG_Bool(REGB3)) {
     } else {
-      /* ./../lib/standard//kernel.nit:210 */
+      /* ../lib/standard/kernel.nit:230 */
       REGB1 = TAG_Bool((REGB0)==(REGB1));
-      /* ./../lib/standard//collection//abstract_collection.nit:220 */
+      /* ../lib/standard/collection/abstract_collection.nit:220 */
       REGB3 = REGB1;
     }
     if (UNTAG_Bool(REGB3)) {
-      /* ./../lib/standard//collection//abstract_collection.nit:221 */
-      REGB3 = TAG_Bool(true);
+      /* ../lib/standard/collection/abstract_collection.nit:221 */
+      REGB3 = TAG_Bool(1);
       REGB2 = REGB3;
       goto label1;
     } else {
-      /* ./../lib/standard//collection//abstract_collection.nit:223 */
-      REGB3 = TAG_Bool(false);
+      /* ../lib/standard/collection/abstract_collection.nit:223 */
+      REGB3 = TAG_Bool(0);
       REGB2 = REGB3;
       goto label1;
     }
@@ -990,6 +1069,7 @@ val_t standard___collection___abstract_collection___Set___has_only(val_t p0, val
   stack_frame_head = fra.me.prev;
   return REGB2;
 }
+static const char LOCATE_standard___collection___abstract_collection___Set___count[] = "abstract_collection::Set::(abstract_collection::Collection::count)";
 val_t standard___collection___abstract_collection___Set___count(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -1001,18 +1081,19 @@ val_t standard___collection___abstract_collection___Set___count(val_t p0, val_t
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Set___count;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:230 */
+  /* ../lib/standard/collection/abstract_collection.nit:230 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
   if (UNTAG_Bool(REGB0)) {
-    /* ./../lib/standard//collection//abstract_collection.nit:231 */
+    /* ../lib/standard/collection/abstract_collection.nit:231 */
     REGB0 = TAG_Int(1);
     goto label1;
   } else {
-    /* ./../lib/standard//collection//abstract_collection.nit:233 */
+    /* ../lib/standard/collection/abstract_collection.nit:233 */
     REGB1 = TAG_Int(0);
     REGB0 = REGB1;
     goto label1;
@@ -1021,6 +1102,7 @@ val_t standard___collection___abstract_collection___Set___count(val_t p0, val_t
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___Set___remove_all[] = "abstract_collection::Set::(abstract_collection::RemovableCollection::remove_all)";
 void standard___collection___abstract_collection___Set___remove_all(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
@@ -1030,15 +1112,17 @@ void standard___collection___abstract_collection___Set___remove_all(val_t p0, va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Set___remove_all;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:238 */
+  /* ../lib/standard/collection/abstract_collection.nit:238 */
   CALL_standard___collection___abstract_collection___RemovableCollection___remove(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___MapRead_____bra[] = "abstract_collection::MapRead::[]";
 val_t standard___collection___abstract_collection___MapRead_____bra(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -1048,25 +1132,37 @@ val_t standard___collection___abstract_collection___MapRead_____bra(val_t p0, va
   fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead_____bra;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:243 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:243 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 243);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___MapRead___has_key[] = "abstract_collection::MapRead::has_key";
 val_t standard___collection___abstract_collection___MapRead___has_key(val_t p0, val_t p1){
-  struct {struct stack_frame_t me;} fra;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t REGB0;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
   fra.me.line = 246;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___has_key;
   fra.me.has_broke = 0;
-  fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:246 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 246);
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:247 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapRead___keys(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = CALL_standard___collection___abstract_collection___Collection___has(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
+  goto label1;
+  label1: while(0);
   stack_frame_head = fra.me.prev;
-  return NIT_NULL;
+  return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___MapRead___iterator[] = "abstract_collection::MapRead::iterator";
 val_t standard___collection___abstract_collection___MapRead___iterator(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
@@ -1076,69 +1172,169 @@ val_t standard___collection___abstract_collection___MapRead___iterator(val_t p0)
   fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___iterator;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:249 */
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:249 */
   nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 249);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
-void standard___collection___abstract_collection___Map_____braeq(val_t p0, val_t p1, val_t p2){
+static const char LOCATE_standard___collection___abstract_collection___MapRead___iterate[] = "abstract_collection::MapRead::iterate";
+void standard___collection___abstract_collection___MapRead___iterate(val_t p0, struct stack_frame_t *closctx_param, fun_t clos_fun0){
+  struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
+  val_t REGB0;
+  fun_t CREG[1];
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 252;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___iterate;
+  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.closure_ctx = closctx_param;
+  fra.me.closure_funs = CREG;
+  fra.me.REG[0] = p0;
+  CREG[0] = clos_fun0;
+  /* ../lib/standard/collection/abstract_collection.nit:256 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapRead___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  /* ../lib/standard/collection/abstract_collection.nit:257 */
+  while(1) {
+    REGB0 = CALL_standard___collection___abstract_collection___MapIterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+    if (UNTAG_Bool(REGB0)) {
+      /* ../lib/standard/collection/abstract_collection.nit:258 */
+      fra.me.REG[1] = CALL_standard___collection___abstract_collection___MapIterator___key(fra.me.REG[0])(fra.me.REG[0]);
+      fra.me.REG[2] = CALL_standard___collection___abstract_collection___MapIterator___item(fra.me.REG[0])(fra.me.REG[0]);
+      ((void (*)(struct stack_frame_t *, val_t, val_t))(CREG[0]))(closctx_param, fra.me.REG[1], fra.me.REG[2]);
+      if (closctx_param->has_broke) {
+        goto label1;
+      }
+      /* ../lib/standard/collection/abstract_collection.nit:259 */
+      CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[0])(fra.me.REG[0]);
+    } else {
+      /* ../lib/standard/collection/abstract_collection.nit:257 */
+      goto label2;
+    }
+  }
+  label2: while(0);
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapRead___values[] = "abstract_collection::MapRead::values";
+val_t standard___collection___abstract_collection___MapRead___values(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 267;
-  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map_____braeq;
+  fra.me.line = 263;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___values;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:267 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 267);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:263 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 263);
   stack_frame_head = fra.me.prev;
-  return;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapRead___keys[] = "abstract_collection::MapRead::keys";
+val_t standard___collection___abstract_collection___MapRead___keys(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 268;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___keys;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:268 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 268);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapRead___is_empty[] = "abstract_collection::MapRead::is_empty";
+val_t standard___collection___abstract_collection___MapRead___is_empty(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 273;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___is_empty;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:273 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 273);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
 }
-void standard___collection___abstract_collection___Map___remove_at(val_t p0, val_t p1){
+static const char LOCATE_standard___collection___abstract_collection___MapRead___length[] = "abstract_collection::MapRead::length";
+val_t standard___collection___abstract_collection___MapRead___length(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 270;
-  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map___remove_at;
+  fra.me.line = 276;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapRead___length;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:270 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 270);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:276 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 276);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___Map_____braeq[] = "abstract_collection::Map::[]=";
+void standard___collection___abstract_collection___Map_____braeq(val_t p0, val_t p1, val_t p2){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 304;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map_____braeq;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:304 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 304);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Map___recover_with[] = "abstract_collection::Map::recover_with";
 void standard___collection___abstract_collection___Map___recover_with(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[3];} fra;
   val_t REGB0;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 273;
+  fra.me.line = 307;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Map___recover_with;
   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;
   fra.me.REG[3] = NIT_NULL;
   fra.me.REG[0] = p0;
   fra.me.REG[1] = p1;
-  /* ./../lib/standard//collection//abstract_collection.nit:277 */
-  fra.me.REG[1] = CALL_standard___collection___abstract_collection___Collection___iterator(fra.me.REG[1])(fra.me.REG[1]);
-  /* ./../lib/standard//collection//abstract_collection.nit:278 */
+  /* ../lib/standard/collection/abstract_collection.nit:311 */
+  fra.me.REG[1] = CALL_standard___collection___abstract_collection___MapRead___iterator(fra.me.REG[1])(fra.me.REG[1]);
+  /* ../lib/standard/collection/abstract_collection.nit:312 */
   while(1) {
-    REGB0 = CALL_standard___collection___abstract_collection___Iterator___is_ok(fra.me.REG[1])(fra.me.REG[1]);
+    REGB0 = CALL_standard___collection___abstract_collection___MapIterator___is_ok(fra.me.REG[1])(fra.me.REG[1]);
     if (UNTAG_Bool(REGB0)) {
-      /* ./../lib/standard//collection//abstract_collection.nit:279 */
+      /* ../lib/standard/collection/abstract_collection.nit:313 */
       fra.me.REG[2] = CALL_standard___collection___abstract_collection___MapIterator___key(fra.me.REG[1])(fra.me.REG[1]);
-      fra.me.REG[3] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[1])(fra.me.REG[1]);
+      fra.me.REG[3] = CALL_standard___collection___abstract_collection___MapIterator___item(fra.me.REG[1])(fra.me.REG[1]);
       CALL_standard___collection___abstract_collection___Map_____braeq(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[2], fra.me.REG[3]);
-      /* ./../lib/standard//collection//abstract_collection.nit:280 */
-      CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[1])(fra.me.REG[1]);
+      /* ../lib/standard/collection/abstract_collection.nit:314 */
+      CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[1])(fra.me.REG[1]);
     } else {
-      /* ./../lib/standard//collection//abstract_collection.nit:278 */
+      /* ../lib/standard/collection/abstract_collection.nit:312 */
       goto label1;
     }
   }
@@ -1146,40 +1342,396 @@ void standard___collection___abstract_collection___Map___recover_with(val_t p0,
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Map___clear[] = "abstract_collection::Map::clear";
+void standard___collection___abstract_collection___Map___clear(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 318;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map___clear;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:318 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 318);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___Map___values[] = "abstract_collection::Map::(abstract_collection::MapRead::values)";
+val_t standard___collection___abstract_collection___Map___values(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 321;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map___values;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:321 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 321);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___Map___keys[] = "abstract_collection::Map::(abstract_collection::MapRead::keys)";
+val_t standard___collection___abstract_collection___Map___keys(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 323;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___Map___keys;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:323 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 323);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapIterator___item[] = "abstract_collection::MapIterator::item";
+val_t standard___collection___abstract_collection___MapIterator___item(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 328;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapIterator___item;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:328 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 328);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapIterator___key[] = "abstract_collection::MapIterator::key";
 val_t standard___collection___abstract_collection___MapIterator___key(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 288;
+  fra.me.line = 332;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___MapIterator___key;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:288 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 288);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:332 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 332);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___MapIterator___next[] = "abstract_collection::MapIterator::next";
+void standard___collection___abstract_collection___MapIterator___next(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 336;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapIterator___next;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:336 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 336);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapIterator___is_ok[] = "abstract_collection::MapIterator::is_ok";
+val_t standard___collection___abstract_collection___MapIterator___is_ok(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 340;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapIterator___is_ok;
+  fra.me.has_broke = 0;
+  fra.me.REG_size = 0;
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:340 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 340);
+  stack_frame_head = fra.me.prev;
+  return NIT_NULL;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___iterator[] = "abstract_collection::MapKeysIterator::iterator";
+val_t standard___collection___abstract_collection___MapKeysIterator___iterator(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_standard___collection___abstract_collection;
+  fra.me.line = 350;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___iterator;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:350 */
+  REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___MapKeysIterator_____atiterator(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "@iterator", LOCATE_standard___collection___abstract_collection, 350);
+  }
+  fra.me.REG[0] = ATTR_standard___collection___abstract_collection___MapKeysIterator_____atiterator(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___iterator__eq[] = "abstract_collection::MapKeysIterator::iterator=";
+void standard___collection___abstract_collection___MapKeysIterator___iterator__eq(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 350;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___iterator__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;
+  /* ../lib/standard/collection/abstract_collection.nit:350 */
+  ATTR_standard___collection___abstract_collection___MapKeysIterator_____atiterator(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___is_ok[] = "abstract_collection::MapKeysIterator::(abstract_collection::Iterator::is_ok)";
+val_t standard___collection___abstract_collection___MapKeysIterator___is_ok(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_standard___collection___abstract_collection;
+  fra.me.line = 353;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___is_ok;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:353 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapKeysIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = CALL_standard___collection___abstract_collection___MapIterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___next[] = "abstract_collection::MapKeysIterator::(abstract_collection::Iterator::next)";
+void standard___collection___abstract_collection___MapKeysIterator___next(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 354;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___next;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:354 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapKeysIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___item[] = "abstract_collection::MapKeysIterator::(abstract_collection::Iterator::item)";
+val_t standard___collection___abstract_collection___MapKeysIterator___item(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 355;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___item;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:355 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapKeysIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapIterator___key(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+static const char LOCATE_standard___collection___abstract_collection___MapKeysIterator___init[] = "abstract_collection::MapKeysIterator::init";
+void standard___collection___abstract_collection___MapKeysIterator___init(val_t p0, val_t p1, int* init_table){
+  int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___MapKeysIterator].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  if (init_table[itpos2]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 0;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapKeysIterator___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;
+  ATTR_standard___collection___abstract_collection___MapKeysIterator_____atiterator(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos2] = 1;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___iterator[] = "abstract_collection::MapValuesIterator::iterator";
+val_t standard___collection___abstract_collection___MapValuesIterator___iterator(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_standard___collection___abstract_collection;
+  fra.me.line = 361;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___iterator;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:361 */
+  REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___MapValuesIterator_____atiterator(fra.me.REG[0])!=NIT_NULL);
+  if (UNTAG_Bool(REGB0)) {
+  } else {
+    nit_abort("Uninitialized attribute %s", "@iterator", LOCATE_standard___collection___abstract_collection, 361);
+  }
+  fra.me.REG[0] = ATTR_standard___collection___abstract_collection___MapValuesIterator_____atiterator(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___iterator__eq[] = "abstract_collection::MapValuesIterator::iterator=";
+void standard___collection___abstract_collection___MapValuesIterator___iterator__eq(val_t p0, val_t p1){
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 361;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___iterator__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;
+  /* ../lib/standard/collection/abstract_collection.nit:361 */
+  ATTR_standard___collection___abstract_collection___MapValuesIterator_____atiterator(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___is_ok[] = "abstract_collection::MapValuesIterator::(abstract_collection::Iterator::is_ok)";
+val_t standard___collection___abstract_collection___MapValuesIterator___is_ok(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_standard___collection___abstract_collection;
+  fra.me.line = 364;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___is_ok;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:364 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapValuesIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  REGB0 = CALL_standard___collection___abstract_collection___MapIterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return REGB0;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___next[] = "abstract_collection::MapValuesIterator::(abstract_collection::Iterator::next)";
+void standard___collection___abstract_collection___MapValuesIterator___next(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 365;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___next;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:365 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapValuesIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  CALL_standard___collection___abstract_collection___MapIterator___next(fra.me.REG[0])(fra.me.REG[0]);
+  stack_frame_head = fra.me.prev;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___item[] = "abstract_collection::MapValuesIterator::(abstract_collection::Iterator::item)";
+val_t standard___collection___abstract_collection___MapValuesIterator___item(val_t p0){
+  struct {struct stack_frame_t me;} fra;
+  val_t tmp;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 366;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___item;
+  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;
+  /* ../lib/standard/collection/abstract_collection.nit:366 */
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapValuesIterator___iterator(fra.me.REG[0])(fra.me.REG[0]);
+  fra.me.REG[0] = CALL_standard___collection___abstract_collection___MapIterator___item(fra.me.REG[0])(fra.me.REG[0]);
+  goto label1;
+  label1: while(0);
+  stack_frame_head = fra.me.prev;
+  return fra.me.REG[0];
+}
+static const char LOCATE_standard___collection___abstract_collection___MapValuesIterator___init[] = "abstract_collection::MapValuesIterator::init";
+void standard___collection___abstract_collection___MapValuesIterator___init(val_t p0, val_t p1, int* init_table){
+  int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___MapValuesIterator].i;
+  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
+  val_t tmp;
+  if (init_table[itpos3]) return;
+  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
+  fra.me.file = LOCATE_standard___collection___abstract_collection;
+  fra.me.line = 0;
+  fra.me.meth = LOCATE_standard___collection___abstract_collection___MapValuesIterator___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;
+  ATTR_standard___collection___abstract_collection___MapValuesIterator_____atiterator(fra.me.REG[0]) = fra.me.REG[1];
+  stack_frame_head = fra.me.prev;
+  init_table[itpos3] = 1;
+  return;
+}
+static const char LOCATE_standard___collection___abstract_collection___SequenceRead___first[] = "abstract_collection::SequenceRead::(abstract_collection::Collection::first)";
 val_t standard___collection___abstract_collection___SequenceRead___first(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_standard___collection___abstract_collection;
-  fra.me.line = 299;
+  fra.me.line = 373;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SequenceRead___first;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:303 */
+  /* ../lib/standard/collection/abstract_collection.nit:377 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
   REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Assert %s  failed", "'not_empty'", LOCATE_standard___collection___abstract_collection, 303);
+    nit_abort("Assert '%s' failed", "not_empty", LOCATE_standard___collection___abstract_collection, 377);
   }
-  /* ./../lib/standard//collection//abstract_collection.nit:304 */
+  /* ../lib/standard/collection/abstract_collection.nit:378 */
   REGB0 = TAG_Int(0);
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB0);
   goto label1;
@@ -1187,20 +1739,23 @@ val_t standard___collection___abstract_collection___SequenceRead___first(val_t p
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___SequenceRead_____bra[] = "abstract_collection::SequenceRead::[]";
 val_t standard___collection___abstract_collection___SequenceRead_____bra(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 307;
+  fra.me.line = 381;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SequenceRead_____bra;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:307 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 307);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:381 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 381);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___SequenceRead___last[] = "abstract_collection::SequenceRead::last";
 val_t standard___collection___abstract_collection___SequenceRead___last(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t REGB0;
@@ -1208,31 +1763,33 @@ val_t standard___collection___abstract_collection___SequenceRead___last(val_t p0
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 309;
+  fra.me.line = 386;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SequenceRead___last;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:313 */
+  /* ../lib/standard/collection/abstract_collection.nit:390 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___is_empty(fra.me.REG[0])(fra.me.REG[0]);
   REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Assert %s  failed", "'not_empty'", LOCATE_standard___collection___abstract_collection, 313);
+    nit_abort("Assert '%s' failed", "not_empty", LOCATE_standard___collection___abstract_collection, 390);
   }
-  /* ./../lib/standard//collection//abstract_collection.nit:314 */
+  /* ../lib/standard/collection/abstract_collection.nit:391 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[0])(fra.me.REG[0]);
   REGB1 = TAG_Int(1);
-  /* ./../lib/standard//kernel.nit:220 */
+  /* ../lib/standard/kernel.nit:240 */
   REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
-  /* ./../lib/standard//collection//abstract_collection.nit:314 */
+  /* ../lib/standard/collection/abstract_collection.nit:391 */
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___SequenceRead_____bra(fra.me.REG[0])(fra.me.REG[0], REGB1);
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___SequenceRead___index_of[] = "abstract_collection::SequenceRead::index_of";
 val_t standard___collection___abstract_collection___SequenceRead___index_of(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
   val_t REGB0;
@@ -1240,29 +1797,30 @@ val_t standard___collection___abstract_collection___SequenceRead___index_of(val_
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 317;
+  fra.me.line = 394;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SequenceRead___index_of;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:321 */
+  /* ../lib/standard/collection/abstract_collection.nit:399 */
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Collection___iterator(fra.me.REG[0])(fra.me.REG[0]);
-  /* ./../lib/standard//collection//abstract_collection.nit:322 */
+  /* ../lib/standard/collection/abstract_collection.nit:400 */
   while(1) {
     REGB0 = CALL_standard___collection___abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
     if (UNTAG_Bool(REGB0)) {
-      /* ./../lib/standard//collection//abstract_collection.nit:323 */
+      /* ../lib/standard/collection/abstract_collection.nit:401 */
       fra.me.REG[2] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
       REGB0 = TAG_Bool(IS_EQUAL_NN(fra.me.REG[2],fra.me.REG[1]));
       if (UNTAG_Bool(REGB0)) {
       } else {
         REGB1 = TAG_Bool(fra.me.REG[2]==NIT_NULL);
         if (UNTAG_Bool(REGB1)) {
-          REGB1 = TAG_Bool(false);
+          REGB1 = TAG_Bool(0);
           REGB0 = REGB1;
         } else {
           REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[2])(fra.me.REG[2], fra.me.REG[1]);
@@ -1273,59 +1831,64 @@ val_t standard___collection___abstract_collection___SequenceRead___index_of(val_
         REGB0 = CALL_standard___collection___abstract_collection___IndexedIterator___index(fra.me.REG[0])(fra.me.REG[0]);
         goto label1;
       }
-      /* ./../lib/standard//collection//abstract_collection.nit:324 */
+      /* ../lib/standard/collection/abstract_collection.nit:402 */
       CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
     } else {
-      /* ./../lib/standard//collection//abstract_collection.nit:322 */
+      /* ../lib/standard/collection/abstract_collection.nit:400 */
       goto label2;
     }
   }
   label2: while(0);
-  /* ./../lib/standard//collection//abstract_collection.nit:326 */
+  /* ../lib/standard/collection/abstract_collection.nit:404 */
   REGB1 = TAG_Int(1);
-  /* ./../lib/standard//kernel.nit:219 */
+  /* ../lib/standard/kernel.nit:239 */
   REGB1 = TAG_Int(-UNTAG_Int(REGB1));
-  /* ./../lib/standard//collection//abstract_collection.nit:326 */
+  /* ../lib/standard/collection/abstract_collection.nit:404 */
   REGB0 = REGB1;
   goto label1;
   label1: while(0);
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___SequenceRead___iterator[] = "abstract_collection::SequenceRead::(abstract_collection::Collection::iterator)";
 val_t standard___collection___abstract_collection___SequenceRead___iterator(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 329;
+  fra.me.line = 407;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___SequenceRead___iterator;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:329 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 329);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:407 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 407);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___first__eq[] = "abstract_collection::Sequence::first=";
 void standard___collection___abstract_collection___Sequence___first__eq(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 337;
+  fra.me.line = 416;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___first__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;
-  /* ./../lib/standard//collection//abstract_collection.nit:340 */
+  /* ../lib/standard/collection/abstract_collection.nit:419 */
   REGB0 = TAG_Int(0);
   CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB0, fra.me.REG[1]);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___last__eq[] = "abstract_collection::Sequence::last=";
 void standard___collection___abstract_collection___Sequence___last__eq(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -1334,82 +1897,89 @@ void standard___collection___abstract_collection___Sequence___last__eq(val_t p0,
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 342;
+  fra.me.line = 421;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___last__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;
-  /* ./../lib/standard//collection//abstract_collection.nit:346 */
+  /* ../lib/standard/collection/abstract_collection.nit:425 */
   REGB0 = CALL_standard___collection___abstract_collection___Collection___length(fra.me.REG[0])(fra.me.REG[0]);
-  /* ./../lib/standard//collection//abstract_collection.nit:347 */
+  /* ../lib/standard/collection/abstract_collection.nit:426 */
   REGB1 = TAG_Int(0);
   REGB2 = TAG_Bool(VAL_ISA(REGB1, VTCOLOR_standard___kernel___Comparable___OTHER(REGB0), VTID_standard___kernel___Comparable___OTHER(REGB0))) /*cast OTHER*/;
   if (UNTAG_Bool(REGB2)) {
   } else {
     nit_abort("Cast failed", NULL, LOCATE_standard___kernel, 0);
   }
-  /* ./../lib/standard//kernel.nit:217 */
+  /* ../lib/standard/kernel.nit:237 */
   REGB1 = TAG_Bool(UNTAG_Int(REGB0)>UNTAG_Int(REGB1));
-  /* ./../lib/standard//collection//abstract_collection.nit:347 */
+  /* ../lib/standard/collection/abstract_collection.nit:426 */
   if (UNTAG_Bool(REGB1)) {
-    /* ./../lib/standard//collection//abstract_collection.nit:348 */
+    /* ../lib/standard/collection/abstract_collection.nit:427 */
     REGB1 = TAG_Int(1);
-    /* ./../lib/standard//kernel.nit:220 */
+    /* ../lib/standard/kernel.nit:240 */
     REGB1 = TAG_Int(UNTAG_Int(REGB0)-UNTAG_Int(REGB1));
-    /* ./../lib/standard//collection//abstract_collection.nit:348 */
+    /* ../lib/standard/collection/abstract_collection.nit:427 */
     CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB1, fra.me.REG[1]);
   } else {
-    /* ./../lib/standard//collection//abstract_collection.nit:350 */
+    /* ../lib/standard/collection/abstract_collection.nit:429 */
     REGB1 = TAG_Int(0);
     CALL_standard___collection___abstract_collection___Sequence_____braeq(fra.me.REG[0])(fra.me.REG[0], REGB1, fra.me.REG[1]);
   }
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___add[] = "abstract_collection::Sequence::(abstract_collection::SimpleCollection::add)";
 void standard___collection___abstract_collection___Sequence___add(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 354;
+  fra.me.line = 433;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___add;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:355 */
+  /* ../lib/standard/collection/abstract_collection.nit:434 */
   CALL_standard___collection___abstract_collection___Sequence___push(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___push[] = "abstract_collection::Sequence::push";
 void standard___collection___abstract_collection___Sequence___push(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 357;
+  fra.me.line = 436;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___push;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:357 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 357);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:436 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 436);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___append[] = "abstract_collection::Sequence::append";
 void standard___collection___abstract_collection___Sequence___append(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 360;
+  fra.me.line = 439;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___append;
   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;
@@ -1422,13 +1992,14 @@ void standard___collection___abstract_collection___Sequence___append(val_t p0, v
     struct {struct stack_frame_t me;} fra;
     fun_t CREG[1];
     val_t tmp;
-    /* ./../lib/standard//collection//abstract_collection.nit:361 */
+    /* ../lib/standard/collection/abstract_collection.nit:440 */
     fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
     fra.me.file = LOCATE_standard___collection___abstract_collection;
     fra.me.line = 0;
     fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___append;
     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.closure_ctx = closctx_param;
     fra.me.closure_funs = CREG;
@@ -1438,104 +2009,119 @@ void standard___collection___abstract_collection___Sequence___append(val_t p0, v
     stack_frame_head = fra.me.prev;
     return;
   }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___pop[] = "abstract_collection::Sequence::pop";
 val_t standard___collection___abstract_collection___Sequence___pop(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 363;
+  fra.me.line = 442;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___pop;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:363 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 363);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:442 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 442);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___unshift[] = "abstract_collection::Sequence::unshift";
 void standard___collection___abstract_collection___Sequence___unshift(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 366;
+  fra.me.line = 445;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___unshift;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:366 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 366);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:445 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 445);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___shift[] = "abstract_collection::Sequence::shift";
 val_t standard___collection___abstract_collection___Sequence___shift(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 369;
+  fra.me.line = 448;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___shift;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:369 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 369);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:448 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 448);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence_____braeq[] = "abstract_collection::Sequence::[]=";
 void standard___collection___abstract_collection___Sequence_____braeq(val_t p0, val_t p1, val_t p2){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 373;
+  fra.me.line = 452;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence_____braeq;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:373 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 373);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:452 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 452);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Sequence___remove_at[] = "abstract_collection::Sequence::remove_at";
 void standard___collection___abstract_collection___Sequence___remove_at(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 376;
+  fra.me.line = 455;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Sequence___remove_at;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:376 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 376);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:455 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 455);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___IndexedIterator___index[] = "abstract_collection::IndexedIterator::index";
 val_t standard___collection___abstract_collection___IndexedIterator___index(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 383;
+  fra.me.line = 462;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___IndexedIterator___index;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:383 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 383);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:462 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 462);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMap___couple_at[] = "abstract_collection::CoupleMap::couple_at";
 val_t standard___collection___abstract_collection___CoupleMap___couple_at(val_t p0, val_t p1){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 390;
+  fra.me.line = 469;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMap___couple_at;
   fra.me.has_broke = 0;
   fra.me.REG_size = 0;
-  /* ./../lib/standard//collection//abstract_collection.nit:390 */
-  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 390);
+  fra.me.nitni_local_ref_head = NULL;
+  /* ../lib/standard/collection/abstract_collection.nit:469 */
+  nit_abort("Deferred method called", NULL, LOCATE_standard___collection___abstract_collection, 469);
   stack_frame_head = fra.me.prev;
   return NIT_NULL;
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMap_____bra[] = "abstract_collection::CoupleMap::(abstract_collection::MapRead::[])";
 val_t standard___collection___abstract_collection___CoupleMap_____bra(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t REGB0;
@@ -1543,23 +2129,24 @@ val_t standard___collection___abstract_collection___CoupleMap_____bra(val_t p0,
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 394;
+  fra.me.line = 473;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMap_____bra;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:396 */
+  /* ../lib/standard/collection/abstract_collection.nit:475 */
   fra.me.REG[1] = CALL_standard___collection___abstract_collection___CoupleMap___couple_at(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
-  /* ./../lib/standard//collection//abstract_collection.nit:397 */
+  /* ../lib/standard/collection/abstract_collection.nit:476 */
   REGB0 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
     REGB1 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
     if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(false);
+      REGB1 = TAG_Bool(0);
       REGB0 = REGB1;
     } else {
       REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[1])(fra.me.REG[1], NIT_NULL);
@@ -1567,13 +2154,13 @@ val_t standard___collection___abstract_collection___CoupleMap_____bra(val_t p0,
     }
   }
   if (UNTAG_Bool(REGB0)) {
-    /* ./../lib/standard//collection//abstract_collection.nit:398 */
-    nit_abort("Aborted", NULL, LOCATE_standard___collection___abstract_collection, 398);
+    /* ../lib/standard/collection/abstract_collection.nit:477 */
+    nit_abort("Aborted", NULL, LOCATE_standard___collection___abstract_collection, 477);
   } else {
-    /* ./../lib/standard//collection//abstract_collection.nit:400 */
+    /* ../lib/standard/collection/abstract_collection.nit:479 */
     REGB0 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
     if (UNTAG_Bool(REGB0)) {
-      nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 400);
+      nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 479);
     }
     fra.me.REG[1] = CALL_standard___collection___abstract_collection___Couple___second(fra.me.REG[1])(fra.me.REG[1]);
     goto label1;
@@ -1582,64 +2169,31 @@ val_t standard___collection___abstract_collection___CoupleMap_____bra(val_t p0,
   stack_frame_head = fra.me.prev;
   return fra.me.REG[1];
 }
-val_t standard___collection___abstract_collection___CoupleMap___has_key(val_t p0, val_t p1){
-  struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
-  val_t REGB0;
-  val_t REGB1;
-  val_t tmp;
-  fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
-  fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 404;
-  fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMap___has_key;
-  fra.me.has_broke = 0;
-  fra.me.REG_size = 2;
-  fra.me.REG[0] = NIT_NULL;
-  fra.me.REG[1] = NIT_NULL;
-  fra.me.REG[0] = p0;
-  fra.me.REG[1] = p1;
-  /* ./../lib/standard//collection//abstract_collection.nit:404 */
-  fra.me.REG[1] = CALL_standard___collection___abstract_collection___CoupleMap___couple_at(fra.me.REG[0])(fra.me.REG[0], fra.me.REG[1]);
-  REGB0 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-  if (UNTAG_Bool(REGB0)) {
-  } else {
-    REGB1 = TAG_Bool(fra.me.REG[1]==NIT_NULL);
-    if (UNTAG_Bool(REGB1)) {
-      REGB1 = TAG_Bool(false);
-      REGB0 = REGB1;
-    } else {
-      REGB1 = CALL_standard___kernel___Object_____eqeq(fra.me.REG[1])(fra.me.REG[1], NIT_NULL);
-      REGB0 = REGB1;
-    }
-  }
-  REGB0 = TAG_Bool(!UNTAG_Bool(REGB0));
-  goto label1;
-  label1: while(0);
-  stack_frame_head = fra.me.prev;
-  return REGB0;
-}
+static const char LOCATE_standard___collection___abstract_collection___CoupleMapIterator___item[] = "abstract_collection::CoupleMapIterator::(abstract_collection::MapIterator::item)";
 val_t standard___collection___abstract_collection___CoupleMapIterator___item(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_standard___collection___abstract_collection;
-  fra.me.line = 412;
+  fra.me.line = 489;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMapIterator___item;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:412 */
+  /* ../lib/standard/collection/abstract_collection.nit:489 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 412);
+    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 489);
   }
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0]);
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
   REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
-    nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 412);
+    nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 489);
   }
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Couple___second(fra.me.REG[0])(fra.me.REG[0]);
   goto label1;
@@ -1647,29 +2201,31 @@ val_t standard___collection___abstract_collection___CoupleMapIterator___item(val
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMapIterator___key[] = "abstract_collection::CoupleMapIterator::(abstract_collection::MapIterator::key)";
 val_t standard___collection___abstract_collection___CoupleMapIterator___key(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_standard___collection___abstract_collection;
-  fra.me.line = 416;
+  fra.me.line = 493;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMapIterator___key;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:416 */
+  /* ../lib/standard/collection/abstract_collection.nit:493 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 416);
+    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 493);
   }
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0]);
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Iterator___item(fra.me.REG[0])(fra.me.REG[0]);
   REGB0 = TAG_Bool(fra.me.REG[0]==NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
-    nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 416);
+    nit_abort("Reciever is null", NULL, LOCATE_standard___collection___abstract_collection, 493);
   }
   fra.me.REG[0] = CALL_standard___collection___abstract_collection___Couple___first(fra.me.REG[0])(fra.me.REG[0]);
   goto label1;
@@ -1677,23 +2233,25 @@ val_t standard___collection___abstract_collection___CoupleMapIterator___key(val_
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMapIterator___is_ok[] = "abstract_collection::CoupleMapIterator::(abstract_collection::MapIterator::is_ok)";
 val_t standard___collection___abstract_collection___CoupleMapIterator___is_ok(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_standard___collection___abstract_collection;
-  fra.me.line = 418;
+  fra.me.line = 495;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMapIterator___is_ok;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:418 */
+  /* ../lib/standard/collection/abstract_collection.nit:495 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 418);
+    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 495);
   }
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0]);
   REGB0 = CALL_standard___collection___abstract_collection___Iterator___is_ok(fra.me.REG[0])(fra.me.REG[0]);
@@ -1702,140 +2260,154 @@ val_t standard___collection___abstract_collection___CoupleMapIterator___is_ok(va
   stack_frame_head = fra.me.prev;
   return REGB0;
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMapIterator___next[] = "abstract_collection::CoupleMapIterator::(abstract_collection::MapIterator::next)";
 void standard___collection___abstract_collection___CoupleMapIterator___next(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_standard___collection___abstract_collection;
-  fra.me.line = 420;
+  fra.me.line = 497;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMapIterator___next;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:422 */
+  /* ../lib/standard/collection/abstract_collection.nit:499 */
   REGB0 = TAG_Bool(ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0])!=NIT_NULL);
   if (UNTAG_Bool(REGB0)) {
   } else {
-    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 422);
+    nit_abort("Uninitialized attribute %s", "_iter", LOCATE_standard___collection___abstract_collection, 499);
   }
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0]);
   CALL_standard___collection___abstract_collection___Iterator___next(fra.me.REG[0])(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___CoupleMapIterator___init[] = "abstract_collection::CoupleMapIterator::init";
 void standard___collection___abstract_collection___CoupleMapIterator___init(val_t p0, val_t p1, int* init_table){
-  int itpos2 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___CoupleMapIterator].i;
+  int itpos4 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___CoupleMapIterator].i;
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
-  if (init_table[itpos2]) return;
+  if (init_table[itpos4]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 427;
+  fra.me.line = 504;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___CoupleMapIterator___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;
-  /* ./../lib/standard//collection//abstract_collection.nit:427 */
+  /* ../lib/standard/collection/abstract_collection.nit:504 */
   ATTR_standard___collection___abstract_collection___CoupleMapIterator____iter(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
-  init_table[itpos2] = 1;
+  init_table[itpos4] = 1;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Couple___first[] = "abstract_collection::Couple::first";
 val_t standard___collection___abstract_collection___Couple___first(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 435;
+  fra.me.line = 512;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Couple___first;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:435 */
+  /* ../lib/standard/collection/abstract_collection.nit:512 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Couple____first(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Couple___first__eq[] = "abstract_collection::Couple::first=";
 void standard___collection___abstract_collection___Couple___first__eq(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 435;
+  fra.me.line = 512;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Couple___first__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;
-  /* ./../lib/standard//collection//abstract_collection.nit:435 */
+  /* ../lib/standard/collection/abstract_collection.nit:512 */
   ATTR_standard___collection___abstract_collection___Couple____first(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Couple___second[] = "abstract_collection::Couple::second";
 val_t standard___collection___abstract_collection___Couple___second(val_t p0){
   struct {struct stack_frame_t me;} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 438;
+  fra.me.line = 515;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Couple___second;
   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;
-  /* ./../lib/standard//collection//abstract_collection.nit:438 */
+  /* ../lib/standard/collection/abstract_collection.nit:515 */
   fra.me.REG[0] = ATTR_standard___collection___abstract_collection___Couple____second(fra.me.REG[0]);
   stack_frame_head = fra.me.prev;
   return fra.me.REG[0];
 }
+static const char LOCATE_standard___collection___abstract_collection___Couple___second__eq[] = "abstract_collection::Couple::second=";
 void standard___collection___abstract_collection___Couple___second__eq(val_t p0, val_t p1){
   struct {struct stack_frame_t me; val_t MORE_REG[1];} fra;
   val_t tmp;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 438;
+  fra.me.line = 515;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Couple___second__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;
-  /* ./../lib/standard//collection//abstract_collection.nit:438 */
+  /* ../lib/standard/collection/abstract_collection.nit:515 */
   ATTR_standard___collection___abstract_collection___Couple____second(fra.me.REG[0]) = fra.me.REG[1];
   stack_frame_head = fra.me.prev;
   return;
 }
+static const char LOCATE_standard___collection___abstract_collection___Couple___init[] = "abstract_collection::Couple::init";
 void standard___collection___abstract_collection___Couple___init(val_t p0, val_t p1, val_t p2, int* init_table){
-  int itpos3 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___Couple].i;
+  int itpos5 = VAL2OBJ(p0)->vft[INIT_TABLE_POS_standard___collection___abstract_collection___Couple].i;
   struct {struct stack_frame_t me; val_t MORE_REG[2];} fra;
   val_t tmp;
-  if (init_table[itpos3]) return;
+  if (init_table[itpos5]) return;
   fra.me.prev = stack_frame_head; stack_frame_head = &fra.me;
   fra.me.file = LOCATE_standard___collection___abstract_collection;
-  fra.me.line = 441;
+  fra.me.line = 518;
   fra.me.meth = LOCATE_standard___collection___abstract_collection___Couple___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;
-  /* ./../lib/standard//collection//abstract_collection.nit:444 */
+  /* ../lib/standard/collection/abstract_collection.nit:521 */
   ATTR_standard___collection___abstract_collection___Couple____first(fra.me.REG[0]) = fra.me.REG[1];
-  /* ./../lib/standard//collection//abstract_collection.nit:445 */
+  /* ../lib/standard/collection/abstract_collection.nit:522 */
   ATTR_standard___collection___abstract_collection___Couple____second(fra.me.REG[0]) = fra.me.REG[2];
   stack_frame_head = fra.me.prev;
-  init_table[itpos3] = 1;
+  init_table[itpos5] = 1;
   return;
 }