Makefile: use `--no-stacktrace` on c_src/nitg to deal with the -lunwind issue on...

[nit.git] / c_src / parser.sep.4.c

diff --git a/c_src/parser.sep.4.c b/c_src/parser.sep.4.c
index ebdc448..d786549 100644 (file)
--- a/c_src/parser.sep.4.c
+++ b/c_src/parser.sep.4.c
@@ -1,993 +1,597 @@
 #include "parser.sep.0.h"
-/* method parser#ReduceAction67#action for (self: ReduceAction67, Parser) */
-void parser__ReduceAction67__action(val* self, val* p0) {
+/* method parser#ReduceAction74#action for (self: ReduceAction74, Parser) */
+void parser__ReduceAction74__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var7 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var_pvisibilitynode2 /* var pvisibilitynode2: nullable Object */;
-short int var8 /* : Bool */;
+val* var9 /* : Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
+val* var10 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var_pdocnode2 /* var pdocnode2: nullable Object */;
+short int var12 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwimportnode3 /* var tkwimportnode3: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
-val* var_pmodulenamenode4 /* var pmodulenamenode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_pannotationsnode5 /* var pannotationsnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-val* var18 /* : AStdImport */;
-val* var_pimportnode1 /* var pimportnode1: nullable AStdImport */;
-long var19 /* : Int */;
-long var20 /* : Int */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : AStdClassdef */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var31 /* : Int */;
+long var32 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var1;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
-var_pvisibilitynode2 = var_nodearraylist2;
-/* <var_pvisibilitynode2:nullable Object> isa nullable AVisibility */
-cltype = type_nullable_parser_nodes__AVisibility.color;
-idtype = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode2 == NULL) {
-var8 = 1;
-} else {
-if(cltype >= var_pvisibilitynode2->type->table_size) {
-var8 = 0;
-} else {
-var8 = var_pvisibilitynode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var8) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4330);
-exit(1);
-}
-var_tkwimportnode3 = var_nodearraylist3;
-/* <var_tkwimportnode3:nullable Object> isa nullable TKwimport */
-cltype10 = type_nullable_parser_nodes__TKwimport.color;
-idtype11 = type_nullable_parser_nodes__TKwimport.id;
-if(var_tkwimportnode3 == NULL) {
-var9 = 1;
-} else {
-if(cltype10 >= var_tkwimportnode3->type->table_size) {
-var9 = 0;
-} else {
-var9 = var_tkwimportnode3->type->type_table[cltype10] == idtype11;
-}
-}
-if (!var9) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4332);
-exit(1);
-}
-var_pmodulenamenode4 = var_nodearraylist5;
-/* <var_pmodulenamenode4:nullable Object> isa nullable AModuleName */
-cltype13 = type_nullable_parser_nodes__AModuleName.color;
-idtype14 = type_nullable_parser_nodes__AModuleName.id;
-if(var_pmodulenamenode4 == NULL) {
+var_nodearraylist2 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var8;
+var9 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
+var_listnode7 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode10 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode11 = var11;
+var_pdocnode2 = var_nodearraylist1;
+/* <var_pdocnode2:nullable Object> isa nullable ADoc */
+cltype = type_nullable_parser_nodes__ADoc.color;
+idtype = type_nullable_parser_nodes__ADoc.id;
+if(var_pdocnode2 == NULL) {
 var12 = 1;
 } else {
-if(cltype13 >= var_pmodulenamenode4->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var12 = 0;
 } else {
-var12 = var_pmodulenamenode4->type->type_table[cltype13] == idtype14;
+var12 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4334);
-exit(1);
-}
-var_pannotationsnode5 = var_nodearraylist6;
-/* <var_pannotationsnode5:nullable Object> isa nullable AAnnotations */
-cltype16 = type_nullable_parser_nodes__AAnnotations.color;
-idtype17 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode5 == NULL) {
-var15 = 1;
-} else {
-if(cltype16 >= var_pannotationsnode5->type->table_size) {
-var15 = 0;
-} else {
-var15 = var_pannotationsnode5->type->type_table[cltype16] == idtype17;
-}
-}
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4336);
-exit(1);
-}
-var18 = NEW_parser_nodes__AStdImport(&type_parser_nodes__AStdImport);
-((void (*)(val*, val*, val*, val*, val*))(var18->class->vft[COLOR_parser_prod__AStdImport__init_astdimport]))(var18, var_pvisibilitynode2, var_tkwimportnode3, var_pmodulenamenode4, var_pannotationsnode5) /* init_astdimport on <var18:AStdImport>*/;
-CHECK_NEW_parser_nodes__AStdImport(var18);
-var_pimportnode1 = var18;
-var_node_list = var_pimportnode1;
-var19 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction67> */
-var20 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var19) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var20, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
-}
-/* method parser#ReduceAction67#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction67__action(val* self, val* p0) {
-parser__ReduceAction67__action(self, p0);
-RET_LABEL:;
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4230);
+show_backtrace(1);
 }
-/* method parser#ReduceAction68#action for (self: ReduceAction68, Parser) */
-void parser__ReduceAction68__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var6 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var_pvisibilitynode2 /* var pvisibilitynode2: nullable Object */;
-short int var7 /* : Bool */;
-int cltype;
-int idtype;
-val* var_tkwimportnode3 /* var tkwimportnode3: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-val* var_tkwendnode4 /* var tkwendnode4: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-val* var14 /* : ANoImport */;
-val* var_pimportnode1 /* var pimportnode1: nullable ANoImport */;
-long var15 /* : Int */;
-long var16 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var1;
-var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
-var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
-var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
-var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
-var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
-var_pvisibilitynode2 = var_nodearraylist2;
-/* <var_pvisibilitynode2:nullable Object> isa nullable AVisibility */
-cltype = type_nullable_parser_nodes__AVisibility.color;
-idtype = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode2 == NULL) {
-var7 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype14 = type_nullable_parser_nodes__TKwredef.color;
+idtype15 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var13 = 1;
 } else {
-if(cltype >= var_pvisibilitynode2->type->table_size) {
-var7 = 0;
+if(cltype14 >= var_tkwredefnode3->type->table_size) {
+var13 = 0;
 } else {
-var7 = var_pvisibilitynode2->type->type_table[cltype] == idtype;
+var13 = var_tkwredefnode3->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var7) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4359);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4232);
+show_backtrace(1);
 }
-var_tkwimportnode3 = var_nodearraylist3;
-/* <var_tkwimportnode3:nullable Object> isa nullable TKwimport */
-cltype9 = type_nullable_parser_nodes__TKwimport.color;
-idtype10 = type_nullable_parser_nodes__TKwimport.id;
-if(var_tkwimportnode3 == NULL) {
-var8 = 1;
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype17 = type_nullable_parser_nodes__AVisibility.color;
+idtype18 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var16 = 1;
 } else {
-if(cltype9 >= var_tkwimportnode3->type->table_size) {
-var8 = 0;
+if(cltype17 >= var_pvisibilitynode4->type->table_size) {
+var16 = 0;
 } else {
-var8 = var_tkwimportnode3->type->type_table[cltype9] == idtype10;
+var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var8) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4361);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4234);
+show_backtrace(1);
 }
-var_tkwendnode4 = var_nodearraylist5;
-/* <var_tkwendnode4:nullable Object> isa nullable TKwend */
-cltype12 = type_nullable_parser_nodes__TKwend.color;
-idtype13 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode4 == NULL) {
-var11 = 1;
+var_pclasskindnode5 = var_nodearraylist4;
+/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
+cltype20 = type_nullable_parser_nodes__AClasskind.color;
+idtype21 = type_nullable_parser_nodes__AClasskind.id;
+if(var_pclasskindnode5 == NULL) {
+var19 = 1;
 } else {
-if(cltype12 >= var_tkwendnode4->type->table_size) {
-var11 = 0;
+if(cltype20 >= var_pclasskindnode5->type->table_size) {
+var19 = 0;
 } else {
-var11 = var_tkwendnode4->type->type_table[cltype12] == idtype13;
-}
-}
-if (!var11) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4363);
-exit(1);
+var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
 }
-var14 = NEW_parser_nodes__ANoImport(&type_parser_nodes__ANoImport);
-((void (*)(val*, val*, val*, val*))(var14->class->vft[COLOR_parser_prod__ANoImport__init_anoimport]))(var14, var_pvisibilitynode2, var_tkwimportnode3, var_tkwendnode4) /* init_anoimport on <var14:ANoImport>*/;
-CHECK_NEW_parser_nodes__ANoImport(var14);
-var_pimportnode1 = var14;
-var_node_list = var_pimportnode1;
-var15 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction68> */
-var16 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var15) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var16, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
 }
-/* method parser#ReduceAction68#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction68__action(val* self, val* p0) {
-parser__ReduceAction68__action(self, p0);
-RET_LABEL:;
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4236);
+show_backtrace(1);
 }
-/* method parser#ReduceAction69#action for (self: ReduceAction69, Parser) */
-void parser__ReduceAction69__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var2 /* : Array[Object] */;
-val* var_listnode3 /* var listnode3: Array[Object] */;
-val* var_ppropdefnode2 /* var ppropdefnode2: nullable Object */;
-short int var3 /* : Bool */;
-int cltype;
-int idtype;
-val* var4 /* : null */;
-short int var5 /* : Bool */;
-val* var6 /* : AMainClassdef */;
-val* var_pclassdefnode1 /* var pclassdefnode1: nullable AMainClassdef */;
-long var7 /* : Int */;
-long var8 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var1;
-var2 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var2->class->vft[COLOR_array__Array__init]))(var2) /* init on <var2:Array[Object]>*/;
-CHECK_NEW_array__Array(var2);
-var_listnode3 = var2;
-var_ppropdefnode2 = var_nodearraylist1;
-/* <var_ppropdefnode2:nullable Object> isa nullable APropdef */
-cltype = type_nullable_parser_nodes__APropdef.color;
-idtype = type_nullable_parser_nodes__APropdef.id;
-if(var_ppropdefnode2 == NULL) {
-var3 = 1;
+var_tclassidnode6 = var_nodearraylist6;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype23 = type_nullable_parser_nodes__TClassid.color;
+idtype24 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
+var22 = 1;
 } else {
-if(cltype >= var_ppropdefnode2->type->table_size) {
-var3 = 0;
+if(cltype23 >= var_tclassidnode6->type->table_size) {
+var22 = 0;
 } else {
-var3 = var_ppropdefnode2->type->type_table[cltype] == idtype;
+var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var3) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4381);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4238);
+show_backtrace(1);
 }
-var4 = NULL;
-if (var_ppropdefnode2 == NULL) {
-var5 = 0; /* is null */
+var_tkwendnode12 = var_nodearraylist8;
+/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
+cltype26 = type_nullable_parser_nodes__TKwend.color;
+idtype27 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode12 == NULL) {
+var25 = 1;
 } else {
-var5 = 1; /* arg is null and recv is not */
-}
-if (var5){
-((void (*)(val*, val*))(var_listnode3->class->vft[COLOR_abstract_collection__SimpleCollection__add]))(var_listnode3, var_ppropdefnode2) /* add on <var_listnode3:Array[Object]>*/;
+if(cltype26 >= var_tkwendnode12->type->table_size) {
+var25 = 0;
 } else {
+var25 = var_tkwendnode12->type->type_table[cltype26] == idtype27;
 }
-var6 = NEW_parser_nodes__AMainClassdef(&type_parser_nodes__AMainClassdef);
-((void (*)(val*, val*))(var6->class->vft[COLOR_parser_prod__AMainClassdef__init_amainclassdef]))(var6, var_listnode3) /* init_amainclassdef on <var6:AMainClassdef>*/;
-CHECK_NEW_parser_nodes__AMainClassdef(var6);
-var_pclassdefnode1 = var6;
-var_node_list = var_pclassdefnode1;
-var7 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction69> */
-var8 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var7) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var8, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
 }
-/* method parser#ReduceAction69#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction69__action(val* self, val* p0) {
-parser__ReduceAction69__action(self, p0);
-RET_LABEL:;
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4240);
+show_backtrace(1);
 }
-/* method parser#ReduceAction70#action for (self: ReduceAction70, Parser) */
-void parser__ReduceAction70__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var2 /* : null */;
-long var3 /* : Int */;
-long var4 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var1;
-var2 = NULL;
-var_node_list = var2;
-var3 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction70> */
-var4 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var3) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var4, var_node_list) /* push on <var_p:Parser>*/;
+var28 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var29 = NULL;
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var29, var30, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var28:AStdClassdef>*/;
+var_pclassdefnode1 = var28;
+var_node_list = var_pclassdefnode1;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction74> */
+var32 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var31) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var32, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction70#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction70__action(val* self, val* p0) {
-parser__ReduceAction70__action(self, p0);
+/* method parser#ReduceAction74#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction74__action(val* self, val* p0) {
+parser__ReduceAction74__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction71#action for (self: ReduceAction71, Parser) */
-void parser__ReduceAction71__action(val* self, val* p0) {
+/* method parser#ReduceAction75#action for (self: ReduceAction75, Parser) */
+void parser__ReduceAction75__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var_pexprnode3 /* var pexprnode3: nullable Object */;
-short int var3 /* : Bool */;
-int cltype;
-int idtype;
-val* var4 /* : AMainMethPropdef */;
-val* var5 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AMainMethPropdef */;
-long var6 /* : Int */;
-long var7 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var1;
-var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var2;
-var_pexprnode3 = var_nodearraylist2;
-/* <var_pexprnode3:nullable Object> isa nullable AExpr */
-cltype = type_nullable_parser_nodes__AExpr.color;
-idtype = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode3 == NULL) {
-var3 = 1;
-} else {
-if(cltype >= var_pexprnode3->type->table_size) {
-var3 = 0;
-} else {
-var3 = var_pexprnode3->type->type_table[cltype] == idtype;
-}
-}
-if (!var3) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4410);
-exit(1);
-}
-var4 = NEW_parser_nodes__AMainMethPropdef(&type_parser_nodes__AMainMethPropdef);
-var5 = NULL;
-((void (*)(val*, val*, val*))(var4->class->vft[COLOR_parser_prod__AMainMethPropdef__init_amainmethpropdef]))(var4, var5, var_pexprnode3) /* init_amainmethpropdef on <var4:AMainMethPropdef>*/;
-CHECK_NEW_parser_nodes__AMainMethPropdef(var4);
-var_ppropdefnode1 = var4;
-var_node_list = var_ppropdefnode1;
-var6 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction71> */
-var7 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var6) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var7, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
-}
-/* method parser#ReduceAction71#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction71__action(val* self, val* p0) {
-parser__ReduceAction71__action(self, p0);
-RET_LABEL:;
-}
-/* method parser#ReduceAction73#action for (self: ReduceAction73, Parser) */
-void parser__ReduceAction73__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var7 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var8 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var9 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var10 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var11 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var12 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var24 /* : AStdClassdef */;
-val* var25 /* : null */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AStdClassdef */;
 val* var26 /* : null */;
 val* var27 /* : null */;
+val* var28 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var28 /* : Int */;
 long var29 /* : Int */;
+long var30 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var1;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
-var8 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var8->class->vft[COLOR_array__Array__init]))(var8) /* init on <var8:Array[Object]>*/;
-CHECK_NEW_array__Array(var8);
-var_listnode7 = var8;
+var_nodearraylist2 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var8;
 var9 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
-var_listnode10 = var9;
+var_listnode7 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode11 = var10;
+var_listnode10 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode11 = var11;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var11 = 1;
+var12 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
+var12 = 0;
 } else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
+var12 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4435);
-exit(1);
+if (!var12) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4275);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype13 = type_nullable_parser_nodes__AVisibility.color;
-idtype14 = type_nullable_parser_nodes__AVisibility.id;
+cltype14 = type_nullable_parser_nodes__AVisibility.color;
+idtype15 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var12 = 1;
+var13 = 1;
 } else {
-if(cltype13 >= var_pvisibilitynode4->type->table_size) {
-var12 = 0;
+if(cltype14 >= var_pvisibilitynode4->type->table_size) {
+var13 = 0;
 } else {
-var12 = var_pvisibilitynode4->type->type_table[cltype13] == idtype14;
+var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4437);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4277);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype16 = type_nullable_parser_nodes__AClasskind.color;
-idtype17 = type_nullable_parser_nodes__AClasskind.id;
+cltype17 = type_nullable_parser_nodes__AClasskind.color;
+idtype18 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var15 = 1;
+var16 = 1;
 } else {
-if(cltype16 >= var_pclasskindnode5->type->table_size) {
-var15 = 0;
+if(cltype17 >= var_pclasskindnode5->type->table_size) {
+var16 = 0;
 } else {
-var15 = var_pclasskindnode5->type->type_table[cltype16] == idtype17;
+var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4439);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4279);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist5;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype19 = type_nullable_parser_nodes__TClassid.color;
-idtype20 = type_nullable_parser_nodes__TClassid.id;
+cltype20 = type_nullable_parser_nodes__TClassid.color;
+idtype21 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var18 = 1;
+var19 = 1;
 } else {
-if(cltype19 >= var_tclassidnode6->type->table_size) {
-var18 = 0;
+if(cltype20 >= var_tclassidnode6->type->table_size) {
+var19 = 0;
 } else {
-var18 = var_tclassidnode6->type->type_table[cltype19] == idtype20;
+var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4441);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4281);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist7;
+var_tkwendnode12 = var_nodearraylist8;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype22 = type_nullable_parser_nodes__TKwend.color;
-idtype23 = type_nullable_parser_nodes__TKwend.id;
+cltype23 = type_nullable_parser_nodes__TKwend.color;
+idtype24 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var21 = 1;
+var22 = 1;
 } else {
-if(cltype22 >= var_tkwendnode12->type->table_size) {
-var21 = 0;
+if(cltype23 >= var_tkwendnode12->type->table_size) {
+var22 = 0;
 } else {
-var21 = var_tkwendnode12->type->type_table[cltype22] == idtype23;
+var22 = var_tkwendnode12->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4443);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4283);
+show_backtrace(1);
 }
-var24 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var25 = NULL;
+var25 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var26 = NULL;
 var27 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var24, var_pdocnode2, var25, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var26, var27, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var24:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var24);
-var_pclassdefnode1 = var24;
+var28 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var25, var_pdocnode2, var26, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var27, var28, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var25:AStdClassdef>*/;
+var_pclassdefnode1 = var25;
 var_node_list = var_pclassdefnode1;
-var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction73> */
-var29 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var28) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var29, var_node_list) /* push on <var_p:Parser>*/;
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction75> */
+var30 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var29) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var30, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction73#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction73__action(val* self, val* p0) {
-parser__ReduceAction73__action(self, p0);
+/* method parser#ReduceAction75#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction75__action(val* self, val* p0) {
+parser__ReduceAction75__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction74#action for (self: ReduceAction74, Parser) */
-void parser__ReduceAction74__action(val* self, val* p0) {
+/* method parser#ReduceAction76#action for (self: ReduceAction76, Parser) */
+void parser__ReduceAction76__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var8 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var9 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var10 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var11 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var12 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var12 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : AStdClassdef */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var26 /* : AStdClassdef */;
+val* var27 /* : null */;
+val* var28 /* : null */;
 val* var29 /* : null */;
-val* var30 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var30 /* : Int */;
 long var31 /* : Int */;
-long var32 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
+var_nodearraylist3 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
-var9 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
-var_listnode7 = var9;
+var_nodearraylist2 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode10 = var10;
+var_listnode7 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode11 = var11;
+var_listnode10 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode11 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var12 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var12 = 0;
-} else {
-var12 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4478);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype14 = type_nullable_parser_nodes__TKwredef.color;
-idtype15 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
 var13 = 1;
 } else {
-if(cltype14 >= var_tkwredefnode3->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var13 = 0;
 } else {
-var13 = var_tkwredefnode3->type->type_table[cltype14] == idtype15;
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4480);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4319);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype17 = type_nullable_parser_nodes__AVisibility.color;
-idtype18 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var16 = 1;
+var14 = 1;
 } else {
-if(cltype17 >= var_pvisibilitynode4->type->table_size) {
-var16 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4482);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4321);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype20 = type_nullable_parser_nodes__AClasskind.color;
-idtype21 = type_nullable_parser_nodes__AClasskind.id;
+cltype18 = type_nullable_parser_nodes__AClasskind.color;
+idtype19 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var19 = 1;
+var17 = 1;
 } else {
-if(cltype20 >= var_pclasskindnode5->type->table_size) {
-var19 = 0;
+if(cltype18 >= var_pclasskindnode5->type->table_size) {
+var17 = 0;
 } else {
-var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
+var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4484);
-exit(1);
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4323);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype23 = type_nullable_parser_nodes__TClassid.color;
-idtype24 = type_nullable_parser_nodes__TClassid.id;
+cltype21 = type_nullable_parser_nodes__TClassid.color;
+idtype22 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var22 = 1;
+var20 = 1;
 } else {
-if(cltype23 >= var_tclassidnode6->type->table_size) {
-var22 = 0;
+if(cltype21 >= var_tclassidnode6->type->table_size) {
+var20 = 0;
 } else {
-var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
+var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4486);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4325);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist8;
+var_tkwendnode12 = var_nodearraylist9;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype26 = type_nullable_parser_nodes__TKwend.color;
-idtype27 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode12 == NULL) {
-var25 = 1;
-} else {
-if(cltype26 >= var_tkwendnode12->type->table_size) {
-var25 = 0;
-} else {
-var25 = var_tkwendnode12->type->type_table[cltype26] == idtype27;
-}
-}
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4488);
-exit(1);
-}
-var28 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var29 = NULL;
-var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var29, var30, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var28:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var28);
-var_pclassdefnode1 = var28;
-var_node_list = var_pclassdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction74> */
-var32 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var31) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var32, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
-}
-/* method parser#ReduceAction74#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction74__action(val* self, val* p0) {
-parser__ReduceAction74__action(self, p0);
-RET_LABEL:;
-}
-/* method parser#ReduceAction75#action for (self: ReduceAction75, Parser) */
-void parser__ReduceAction75__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var8 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var9 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
-val* var10 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
-val* var11 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
-val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var12 /* : Bool */;
-int cltype;
-int idtype;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AStdClassdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var29 /* : Int */;
-long var30 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var1;
-var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
-var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
-var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
-var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
-var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
-var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
-var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
-var9 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
-var_listnode7 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode10 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode11 = var11;
-var_pdocnode2 = var_nodearraylist1;
-/* <var_pdocnode2:nullable Object> isa nullable ADoc */
-cltype = type_nullable_parser_nodes__ADoc.color;
-idtype = type_nullable_parser_nodes__ADoc.id;
-if(var_pdocnode2 == NULL) {
-var12 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var12 = 0;
-} else {
-var12 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4523);
-exit(1);
-}
-var_pvisibilitynode4 = var_nodearraylist2;
-/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode4 == NULL) {
-var13 = 1;
-} else {
-if(cltype14 >= var_pvisibilitynode4->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
-}
-}
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4525);
-exit(1);
-}
-var_pclasskindnode5 = var_nodearraylist3;
-/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype17 = type_nullable_parser_nodes__AClasskind.color;
-idtype18 = type_nullable_parser_nodes__AClasskind.id;
-if(var_pclasskindnode5 == NULL) {
-var16 = 1;
-} else {
-if(cltype17 >= var_pclasskindnode5->type->table_size) {
-var16 = 0;
-} else {
-var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
-}
-}
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4527);
-exit(1);
-}
-var_tclassidnode6 = var_nodearraylist6;
-/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype20 = type_nullable_parser_nodes__TClassid.color;
-idtype21 = type_nullable_parser_nodes__TClassid.id;
-if(var_tclassidnode6 == NULL) {
-var19 = 1;
-} else {
-if(cltype20 >= var_tclassidnode6->type->table_size) {
-var19 = 0;
-} else {
-var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
-}
-}
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4529);
-exit(1);
-}
-var_tkwendnode12 = var_nodearraylist8;
-/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype23 = type_nullable_parser_nodes__TKwend.color;
-idtype24 = type_nullable_parser_nodes__TKwend.id;
+cltype24 = type_nullable_parser_nodes__TKwend.color;
+idtype25 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var22 = 1;
+var23 = 1;
 } else {
-if(cltype23 >= var_tkwendnode12->type->table_size) {
-var22 = 0;
+if(cltype24 >= var_tkwendnode12->type->table_size) {
+var23 = 0;
 } else {
-var22 = var_tkwendnode12->type->type_table[cltype23] == idtype24;
+var23 = var_tkwendnode12->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4531);
-exit(1);
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4327);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var26 = NULL;
+var26 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var27 = NULL;
 var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var25, var_pdocnode2, var26, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var27, var28, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var25:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var25);
-var_pclassdefnode1 = var25;
+var29 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var26->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var26, var_pdocnode2, var27, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var28, var29, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var26:AStdClassdef>*/;
+var_pclassdefnode1 = var26;
 var_node_list = var_pclassdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction75> */
-var30 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var29) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var30, var_node_list) /* push on <var_p:Parser>*/;
+var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction76> */
+var31 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var30) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var31, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction75#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction75__action(val* self, val* p0) {
-parser__ReduceAction75__action(self, p0);
+/* method parser#ReduceAction76#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction76__action(val* self, val* p0) {
+parser__ReduceAction76__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction76#action for (self: ReduceAction76, Parser) */
-void parser__ReduceAction76__action(val* self, val* p0) {
+/* method parser#ReduceAction78#action for (self: ReduceAction78, Parser) */
+void parser__ReduceAction78__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
@@ -1019,29 +623,32 @@ val* var_pdocnode2 /* var pdocnode2: nullable Object */;
 short int var13 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
 short int var14 /* : Bool */;
 int cltype15;
 int idtype16;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
 short int var23 /* : Bool */;
 int cltype24;
 int idtype25;
-val* var26 /* : AStdClassdef */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var29 /* : null */;
+val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AStdClassdef */;
+val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var30 /* : Int */;
-long var31 /* : Int */;
+long var32 /* : Int */;
+long var33 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
@@ -1065,15 +672,12 @@ var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode7 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode10 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode11 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -1089,220 +693,27 @@ var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4567);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4363);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
-/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode4 == NULL) {
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype15 = type_nullable_parser_nodes__TKwredef.color;
+idtype16 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
 var14 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+if(cltype15 >= var_tkwredefnode3->type->table_size) {
 var14 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4569);
-exit(1);
-}
-var_pclasskindnode5 = var_nodearraylist3;
-/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype18 = type_nullable_parser_nodes__AClasskind.color;
-idtype19 = type_nullable_parser_nodes__AClasskind.id;
-if(var_pclasskindnode5 == NULL) {
-var17 = 1;
-} else {
-if(cltype18 >= var_pclasskindnode5->type->table_size) {
-var17 = 0;
-} else {
-var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
-}
-}
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4571);
-exit(1);
-}
-var_tclassidnode6 = var_nodearraylist7;
-/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype21 = type_nullable_parser_nodes__TClassid.color;
-idtype22 = type_nullable_parser_nodes__TClassid.id;
-if(var_tclassidnode6 == NULL) {
-var20 = 1;
-} else {
-if(cltype21 >= var_tclassidnode6->type->table_size) {
-var20 = 0;
-} else {
-var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
-}
-}
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4573);
-exit(1);
-}
-var_tkwendnode12 = var_nodearraylist9;
-/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype24 = type_nullable_parser_nodes__TKwend.color;
-idtype25 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode12 == NULL) {
-var23 = 1;
-} else {
-if(cltype24 >= var_tkwendnode12->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_tkwendnode12->type->type_table[cltype24] == idtype25;
-}
-}
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4575);
-exit(1);
-}
-var26 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var27 = NULL;
-var28 = NULL;
-var29 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var26->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var26, var_pdocnode2, var27, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var28, var29, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var26:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var26);
-var_pclassdefnode1 = var26;
-var_node_list = var_pclassdefnode1;
-var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction76> */
-var31 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var30) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var31, var_node_list) /* push on <var_p:Parser>*/;
-RET_LABEL:;
-}
-/* method parser#ReduceAction76#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction76__action(val* self, val* p0) {
-parser__ReduceAction76__action(self, p0);
-RET_LABEL:;
-}
-/* method parser#ReduceAction78#action for (self: ReduceAction78, Parser) */
-void parser__ReduceAction78__action(val* self, val* p0) {
-val* var_p /* var p: Parser */;
-val* var /* : null */;
-val* var_node_list /* var node_list: nullable Object */;
-val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
-val* var11 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
-val* var12 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
-val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
-int cltype;
-int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AStdClassdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var32 /* : Int */;
-long var33 /* : Int */;
-var_p = p0;
-var = NULL;
-var_node_list = var;
-var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
-var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
-var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
-var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
-var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
-var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
-var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
-var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
-var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode7 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode10 = var11;
-var12 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode11 = var12;
-var_pdocnode2 = var_nodearraylist1;
-/* <var_pdocnode2:nullable Object> isa nullable ADoc */
-cltype = type_nullable_parser_nodes__ADoc.color;
-idtype = type_nullable_parser_nodes__ADoc.id;
-if(var_pdocnode2 == NULL) {
-var13 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4611);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype15 = type_nullable_parser_nodes__TKwredef.color;
-idtype16 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
-var14 = 1;
-} else {
-if(cltype15 >= var_tkwredefnode3->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
-}
-}
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4613);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4365);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -1318,8 +729,9 @@ var17 = var_pvisibilitynode4->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4615);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4367);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -1335,8 +747,9 @@ var20 = var_pclasskindnode5->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4617);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4369);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -1352,8 +765,9 @@ var23 = var_tclassidnode6->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4619);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4371);
+show_backtrace(1);
 }
 var_tkwendnode12 = var_nodearraylist9;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
@@ -1369,14 +783,14 @@ var26 = var_tkwendnode12->type->type_table[cltype27] == idtype28;
 }
 }
 if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4621);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4373);
+show_backtrace(1);
 }
 var29 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var30 = NULL;
 var31 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var29, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var30, var31, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var29:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var29);
 var_pclassdefnode1 = var29;
 var_node_list = var_pclassdefnode1;
 var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction78> */
@@ -1475,15 +889,12 @@ var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode10 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode11 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -1499,8 +910,9 @@ var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4658);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4410);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -1516,8 +928,9 @@ var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4660);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4412);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -1533,8 +946,9 @@ var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4662);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4414);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -1550,8 +964,9 @@ var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4664);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4416);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -1567,8 +982,9 @@ var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4666);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4418);
+show_backtrace(1);
 }
 var_tkwendnode12 = var_nodearraylist10;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
@@ -1584,14 +1000,14 @@ var27 = var_tkwendnode12->type->type_table[cltype28] == idtype29;
 }
 }
 if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4668);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4420);
+show_backtrace(1);
 }
 var30 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var31 = NULL;
 var32 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var30, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var31, var32, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var30:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var30);
 var_pclassdefnode1 = var30;
 var_node_list = var_pclassdefnode1;
 var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction79> */
@@ -1684,15 +1100,12 @@ var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var8;
 var9 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
 var_listnode8 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode11 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode12 = var11;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -1708,8 +1121,9 @@ var12 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4703);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4455);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -1725,8 +1139,9 @@ var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4705);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4457);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -1742,8 +1157,9 @@ var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4707);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4459);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist5;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -1759,8 +1175,9 @@ var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4709);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4461);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist6;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -1776,8 +1193,9 @@ var22 = var_listnode7->type->type_table[cltype23] == idtype24;
 }
 }
 if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4711);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4463);
+show_backtrace(1);
 }
 var25 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction81>*/;
 var_listnode8 = var25;
@@ -1795,15 +1213,15 @@ var26 = var_tkwendnode13->type->type_table[cltype27] == idtype28;
 }
 }
 if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4714);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4466);
+show_backtrace(1);
 }
 var29 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var30 = NULL;
 var31 = NULL;
 var32 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var29, var_pdocnode2, var30, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var31, var32, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var29:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var29);
 var_pclassdefnode1 = var29;
 var_node_list = var_pclassdefnode1;
 var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction81> */
@@ -1903,15 +1321,12 @@ var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode8 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode11 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode12 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -1927,8 +1342,9 @@ var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4750);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4502);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -1944,8 +1360,9 @@ var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4752);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4504);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -1961,8 +1378,9 @@ var17 = var_pvisibilitynode4->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4754);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4506);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -1978,8 +1396,9 @@ var20 = var_pclasskindnode5->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4756);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4508);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -1995,8 +1414,9 @@ var23 = var_tclassidnode6->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4758);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4510);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist7;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -2012,8 +1432,9 @@ var26 = var_listnode7->type->type_table[cltype27] == idtype28;
 }
 }
 if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4760);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4512);
+show_backtrace(1);
 }
 var29 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction82>*/;
 var_listnode8 = var29;
@@ -2031,14 +1452,14 @@ var30 = var_tkwendnode13->type->type_table[cltype31] == idtype32;
 }
 }
 if (!var30) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4763);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4515);
+show_backtrace(1);
 }
 var33 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var34 = NULL;
 var35 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var33, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var34, var35, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var33:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var33);
 var_pclassdefnode1 = var33;
 var_node_list = var_pclassdefnode1;
 var36 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction82> */
@@ -2135,15 +1556,12 @@ var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode8 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode11 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode12 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -2159,8 +1577,9 @@ var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4799);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4551);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -2176,8 +1595,9 @@ var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4801);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4553);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -2193,8 +1613,9 @@ var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4803);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4555);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -2210,8 +1631,9 @@ var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4805);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4557);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist7;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -2227,8 +1649,9 @@ var23 = var_listnode7->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4807);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4559);
+show_backtrace(1);
 }
 var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction83>*/;
 var_listnode8 = var26;
@@ -2246,15 +1669,15 @@ var27 = var_tkwendnode13->type->type_table[cltype28] == idtype29;
 }
 }
 if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4810);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4562);
+show_backtrace(1);
 }
 var30 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var31 = NULL;
 var32 = NULL;
 var33 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var30, var_pdocnode2, var31, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var32, var33, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var30:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var30);
 var_pclassdefnode1 = var30;
 var_node_list = var_pclassdefnode1;
 var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction83> */
@@ -2355,15 +1778,12 @@ var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode8 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode11 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode12 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -2379,8 +1799,9 @@ var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4847);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4599);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -2396,8 +1817,9 @@ var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4849);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4601);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -2413,8 +1835,9 @@ var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4851);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4603);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -2430,8 +1853,9 @@ var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4853);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4605);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -2447,8 +1871,9 @@ var24 = var_listnode7->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4855);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4607);
+show_backtrace(1);
 }
 var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction84>*/;
 var_listnode8 = var27;
@@ -2466,15 +1891,15 @@ var28 = var_tkwendnode13->type->type_table[cltype29] == idtype30;
 }
 }
 if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4858);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4610);
+show_backtrace(1);
 }
 var31 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var32 = NULL;
 var33 = NULL;
 var34 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var31->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var31, var_pdocnode2, var32, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var33, var34, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var31:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var31);
 var_pclassdefnode1 = var31;
 var_node_list = var_pclassdefnode1;
 var35 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction84> */
@@ -2578,15 +2003,12 @@ var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode8 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode11 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode12 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -2602,8 +2024,9 @@ var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4895);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4647);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -2619,8 +2042,9 @@ var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4897);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4649);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -2636,8 +2060,9 @@ var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4899);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4651);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -2653,8 +2078,9 @@ var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4901);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4653);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -2670,8 +2096,9 @@ var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4903);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4655);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -2687,8 +2114,9 @@ var27 = var_listnode7->type->type_table[cltype28] == idtype29;
 }
 }
 if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4905);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4657);
+show_backtrace(1);
 }
 var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction86>*/;
 var_listnode8 = var30;
@@ -2706,14 +2134,14 @@ var31 = var_tkwendnode13->type->type_table[cltype32] == idtype33;
 }
 }
 if (!var31) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4908);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4660);
+show_backtrace(1);
 }
 var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var35 = NULL;
 var36 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var35, var36, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var34:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var34);
 var_pclassdefnode1 = var34;
 var_node_list = var_pclassdefnode1;
 var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction86> */
@@ -2821,15 +2249,12 @@ var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode8 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode11 = var13;
 var14 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
 var_listnode12 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -2845,8 +2270,9 @@ var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4946);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4698);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -2862,8 +2288,9 @@ var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4948);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4700);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -2879,8 +2306,9 @@ var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4950);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4702);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -2896,8 +2324,9 @@ var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
 if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4952);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4704);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -2913,8 +2342,9 @@ var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
 if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4954);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4706);
+show_backtrace(1);
 }
 var_listnode7 = var_nodearraylist9;
 /* <var_listnode7:nullable Object> isa Array[Object] */
@@ -2930,8 +2360,9 @@ var28 = var_listnode7->type->type_table[cltype29] == idtype30;
 }
 }
 if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4956);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4708);
+show_backtrace(1);
 }
 var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction87>*/;
 var_listnode8 = var31;
@@ -2949,14 +2380,14 @@ var32 = var_tkwendnode13->type->type_table[cltype33] == idtype34;
 }
 }
 if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4959);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4711);
+show_backtrace(1);
 }
 var35 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var36 = NULL;
 var37 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var35->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var35, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var36, var37, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var35:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var35);
 var_pclassdefnode1 = var35;
 var_node_list = var_pclassdefnode1;
 var38 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction87> */
@@ -3055,15 +2486,12 @@ var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var8;
 var9 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
 var_listnode7 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode15 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode16 = var11;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -3079,8 +2507,9 @@ var12 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4994);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4746);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -3096,8 +2525,9 @@ var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4996);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4748);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -3113,8 +2543,9 @@ var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 4998);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4750);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist5;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -3130,12 +2561,12 @@ var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5000);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4752);
+show_backtrace(1);
 }
 var22 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var22->class->vft[COLOR_array__Array__init]))(var22) /* init on <var22:Array[Object]>*/;
-CHECK_NEW_array__Array(var22);
 var_listnode12 = var22;
 var_listnode11 = var_nodearraylist6;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -3151,8 +2582,9 @@ var23 = var_listnode11->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5003);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4755);
+show_backtrace(1);
 }
 var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction89>*/;
 var_listnode12 = var26;
@@ -3161,7 +2593,6 @@ var28 = NULL;
 var29 = NULL;
 var30 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var27, var28, var29, var_listnode12, var30) /* init_aannotations on <var27:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var27);
 var_pannotationsnode8 = var27;
 var_tkwendnode17 = var_nodearraylist8;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -3177,14 +2608,14 @@ var31 = var_tkwendnode17->type->type_table[cltype32] == idtype33;
 }
 }
 if (!var31) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5012);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4764);
+show_backtrace(1);
 }
 var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var35 = NULL;
 var36 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var35, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var36, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var34:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var34);
 var_pclassdefnode1 = var34;
 var_node_list = var_pclassdefnode1;
 var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction89> */
@@ -3290,15 +2721,12 @@ var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode7 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode15 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode16 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -3314,8 +2742,9 @@ var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5048);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4800);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -3331,8 +2760,9 @@ var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5050);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4802);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -3348,8 +2778,9 @@ var17 = var_pvisibilitynode4->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5052);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4804);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -3365,8 +2796,9 @@ var20 = var_pclasskindnode5->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5054);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4806);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -3382,12 +2814,12 @@ var23 = var_tclassidnode6->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5056);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4808);
+show_backtrace(1);
 }
 var26 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var26->class->vft[COLOR_array__Array__init]))(var26) /* init on <var26:Array[Object]>*/;
-CHECK_NEW_array__Array(var26);
 var_listnode12 = var26;
 var_listnode11 = var_nodearraylist7;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -3403,8 +2835,9 @@ var27 = var_listnode11->type->type_table[cltype28] == idtype29;
 }
 }
 if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5059);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4811);
+show_backtrace(1);
 }
 var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction90>*/;
 var_listnode12 = var30;
@@ -3413,7 +2846,6 @@ var32 = NULL;
 var33 = NULL;
 var34 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var31->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var31, var32, var33, var_listnode12, var34) /* init_aannotations on <var31:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var31);
 var_pannotationsnode8 = var31;
 var_tkwendnode17 = var_nodearraylist9;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -3429,13 +2861,13 @@ var35 = var_tkwendnode17->type->type_table[cltype36] == idtype37;
 }
 }
 if (!var35) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5068);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4820);
+show_backtrace(1);
 }
 var38 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var39 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var38, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var39, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var38:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var38);
 var_pclassdefnode1 = var38;
 var_node_list = var_pclassdefnode1;
 var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction90> */
@@ -3538,15 +2970,12 @@ var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /
 var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
 var_listnode7 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode15 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode16 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -3562,8 +2991,9 @@ var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5104);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4856);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -3579,8 +3009,9 @@ var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5106);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4858);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -3596,8 +3027,9 @@ var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5108);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4860);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -3613,12 +3045,12 @@ var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5110);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4862);
+show_backtrace(1);
 }
 var23 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var23->class->vft[COLOR_array__Array__init]))(var23) /* init on <var23:Array[Object]>*/;
-CHECK_NEW_array__Array(var23);
 var_listnode12 = var23;
 var_listnode11 = var_nodearraylist7;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -3634,8 +3066,9 @@ var24 = var_listnode11->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5113);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4865);
+show_backtrace(1);
 }
 var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction91>*/;
 var_listnode12 = var27;
@@ -3644,7 +3077,6 @@ var29 = NULL;
 var30 = NULL;
 var31 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var28, var29, var30, var_listnode12, var31) /* init_aannotations on <var28:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var28);
 var_pannotationsnode8 = var28;
 var_tkwendnode17 = var_nodearraylist9;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -3660,14 +3092,14 @@ var32 = var_tkwendnode17->type->type_table[cltype33] == idtype34;
 }
 }
 if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5122);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4874);
+show_backtrace(1);
 }
 var35 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var36 = NULL;
 var37 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var35->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var35, var_pdocnode2, var36, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var37, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var35:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var35);
 var_pclassdefnode1 = var35;
 var_node_list = var_pclassdefnode1;
 var38 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction91> */
@@ -3774,15 +3206,12 @@ var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode15 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode16 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -3798,8 +3227,9 @@ var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5159);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4911);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -3815,8 +3245,9 @@ var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5161);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4913);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -3832,8 +3263,9 @@ var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5163);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4915);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -3849,12 +3281,12 @@ var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5165);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4917);
+show_backtrace(1);
 }
 var24 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var24->class->vft[COLOR_array__Array__init]))(var24) /* init on <var24:Array[Object]>*/;
-CHECK_NEW_array__Array(var24);
 var_listnode12 = var24;
 var_listnode11 = var_nodearraylist8;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -3870,8 +3302,9 @@ var25 = var_listnode11->type->type_table[cltype26] == idtype27;
 }
 }
 if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5168);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4920);
+show_backtrace(1);
 }
 var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction92>*/;
 var_listnode12 = var28;
@@ -3880,7 +3313,6 @@ var30 = NULL;
 var31 = NULL;
 var32 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var29, var30, var31, var_listnode12, var32) /* init_aannotations on <var29:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var29);
 var_pannotationsnode8 = var29;
 var_tkwendnode17 = var_nodearraylist10;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -3896,14 +3328,14 @@ var33 = var_tkwendnode17->type->type_table[cltype34] == idtype35;
 }
 }
 if (!var33) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5177);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4929);
+show_backtrace(1);
 }
 var36 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var37 = NULL;
 var38 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var36->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var36, var_pdocnode2, var37, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var38, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var36:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var36);
 var_pclassdefnode1 = var36;
 var_node_list = var_pclassdefnode1;
 var39 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction92> */
@@ -4013,15 +3445,12 @@ var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
 var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode15 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode16 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -4037,8 +3466,9 @@ var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5214);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4966);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -4054,8 +3484,9 @@ var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5216);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4968);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -4071,8 +3502,9 @@ var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5218);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4970);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -4088,8 +3520,9 @@ var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5220);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4972);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -4105,12 +3538,12 @@ var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5222);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4974);
+show_backtrace(1);
 }
 var27 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var27->class->vft[COLOR_array__Array__init]))(var27) /* init on <var27:Array[Object]>*/;
-CHECK_NEW_array__Array(var27);
 var_listnode12 = var27;
 var_listnode11 = var_nodearraylist8;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -4126,8 +3559,9 @@ var28 = var_listnode11->type->type_table[cltype29] == idtype30;
 }
 }
 if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5225);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4977);
+show_backtrace(1);
 }
 var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction94>*/;
 var_listnode12 = var31;
@@ -4136,7 +3570,6 @@ var33 = NULL;
 var34 = NULL;
 var35 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var32, var33, var34, var_listnode12, var35) /* init_aannotations on <var32:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var32);
 var_pannotationsnode8 = var32;
 var_tkwendnode17 = var_nodearraylist10;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -4152,13 +3585,13 @@ var36 = var_tkwendnode17->type->type_table[cltype37] == idtype38;
 }
 }
 if (!var36) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5234);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 4986);
+show_backtrace(1);
 }
 var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var40 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var40, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var39:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var39);
 var_pclassdefnode1 = var39;
 var_node_list = var_pclassdefnode1;
 var41 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction94> */
@@ -4272,15 +3705,12 @@ var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p)
 var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
 var_listnode7 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
 var_listnode15 = var13;
 var14 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
 var_listnode16 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
@@ -4296,8 +3726,9 @@ var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5272);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5024);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
@@ -4313,8 +3744,9 @@ var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5274);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5026);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
@@ -4330,8 +3762,9 @@ var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5276);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5028);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
@@ -4347,8 +3780,9 @@ var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
 if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5278);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5030);
+show_backtrace(1);
 }
 var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
@@ -4364,12 +3798,12 @@ var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
 if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5280);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5032);
+show_backtrace(1);
 }
 var28 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var28->class->vft[COLOR_array__Array__init]))(var28) /* init on <var28:Array[Object]>*/;
-CHECK_NEW_array__Array(var28);
 var_listnode12 = var28;
 var_listnode11 = var_nodearraylist9;
 /* <var_listnode11:nullable Object> isa Array[Object] */
@@ -4385,8 +3819,9 @@ var29 = var_listnode11->type->type_table[cltype30] == idtype31;
 }
 }
 if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5283);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5035);
+show_backtrace(1);
 }
 var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction95>*/;
 var_listnode12 = var32;
@@ -4395,7 +3830,6 @@ var34 = NULL;
 var35 = NULL;
 var36 = NULL;
 ((void (*)(val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var33, var34, var35, var_listnode12, var36) /* init_aannotations on <var33:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var33);
 var_pannotationsnode8 = var33;
 var_tkwendnode17 = var_nodearraylist11;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
@@ -4411,4027 +3845,4599 @@ var37 = var_tkwendnode17->type->type_table[cltype38] == idtype39;
 }
 }
 if (!var37) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5292);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5044);
+show_backtrace(1);
 }
 var40 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var41 = NULL;
 ((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var40->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var40, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var41, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var40:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var40);
 var_pclassdefnode1 = var40;
 var_node_list = var_pclassdefnode1;
-var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction95> */
-var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
+var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction95> */
+var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
+RET_LABEL:;
+}
+/* method parser#ReduceAction95#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction95__action(val* self, val* p0) {
+parser__ReduceAction95__action(self, p0);
+RET_LABEL:;
+}
+/* method parser#ReduceAction97#action for (self: ReduceAction97, Parser) */
+void parser__ReduceAction97__action(val* self, val* p0) {
+val* var_p /* var p: Parser */;
+val* var /* : null */;
+val* var_node_list /* var node_list: nullable Object */;
+val* var1 /* : nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var2 /* : nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var3 /* : nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var4 /* : nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var5 /* : nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var6 /* : nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var7 /* : nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var8 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var9 /* : nullable Object */;
+val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var10 /* : Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var12 /* : Array[Object] */;
+val* var_listnode17 /* var listnode17: Array[Object] */;
+val* var_pdocnode2 /* var pdocnode2: nullable Object */;
+short int var13 /* : Bool */;
+int cltype;
+int idtype;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_listnode7 /* var listnode7: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var26 /* : Array[Object] */;
+val* var27 /* : Array[Object] */;
+val* var_listnode13 /* var listnode13: Array[Object] */;
+val* var_listnode12 /* var listnode12: nullable Object */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+val* var31 /* : Array[Object] */;
+val* var32 /* : AAnnotations */;
+val* var33 /* : null */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
+val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+val* var39 /* : AStdClassdef */;
+val* var40 /* : null */;
+val* var41 /* : null */;
+val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var42 /* : Int */;
+long var43 /* : Int */;
+var_p = p0;
+var = NULL;
+var_node_list = var;
+var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist9 = var1;
+var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist8 = var2;
+var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist7 = var3;
+var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist6 = var4;
+var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist5 = var5;
+var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist4 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist3 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist2 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode8 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode16 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode17 = var12;
+var_pdocnode2 = var_nodearraylist1;
+/* <var_pdocnode2:nullable Object> isa nullable ADoc */
+cltype = type_nullable_parser_nodes__ADoc.color;
+idtype = type_nullable_parser_nodes__ADoc.id;
+if(var_pdocnode2 == NULL) {
+var13 = 1;
+} else {
+if(cltype >= var_pdocnode2->type->table_size) {
+var13 = 0;
+} else {
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
+}
+}
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5080);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var14 = 1;
+} else {
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
+} else {
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+}
+}
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5082);
+show_backtrace(1);
+}
+var_pclasskindnode5 = var_nodearraylist3;
+/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
+cltype18 = type_nullable_parser_nodes__AClasskind.color;
+idtype19 = type_nullable_parser_nodes__AClasskind.id;
+if(var_pclasskindnode5 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_pclasskindnode5->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5084);
+show_backtrace(1);
+}
+var_tclassidnode6 = var_nodearraylist5;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype21 = type_nullable_parser_nodes__TClassid.color;
+idtype22 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_tclassidnode6->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5086);
+show_backtrace(1);
+}
+var_listnode7 = var_nodearraylist6;
+/* <var_listnode7:nullable Object> isa Array[Object] */
+cltype24 = type_array__Arraykernel__Object.color;
+idtype25 = type_array__Arraykernel__Object.id;
+if(var_listnode7 == NULL) {
+var23 = 0;
+} else {
+if(cltype24 >= var_listnode7->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_listnode7->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5088);
+show_backtrace(1);
+}
+var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction97>*/;
+var_listnode8 = var26;
+var27 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var27->class->vft[COLOR_array__Array__init]))(var27) /* init on <var27:Array[Object]>*/;
+var_listnode13 = var27;
+var_listnode12 = var_nodearraylist7;
+/* <var_listnode12:nullable Object> isa Array[Object] */
+cltype29 = type_array__Arraykernel__Object.color;
+idtype30 = type_array__Arraykernel__Object.id;
+if(var_listnode12 == NULL) {
+var28 = 0;
+} else {
+if(cltype29 >= var_listnode12->type->table_size) {
+var28 = 0;
+} else {
+var28 = var_listnode12->type->type_table[cltype29] == idtype30;
+}
+}
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5092);
+show_backtrace(1);
+}
+var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction97>*/;
+var_listnode13 = var31;
+var32 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var33 = NULL;
+var34 = NULL;
+var35 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var32, var33, var34, var_listnode13, var35) /* init_aannotations on <var32:AAnnotations>*/;
+var_pannotationsnode9 = var32;
+var_tkwendnode18 = var_nodearraylist9;
+/* <var_tkwendnode18:nullable Object> isa nullable TKwend */
+cltype37 = type_nullable_parser_nodes__TKwend.color;
+idtype38 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode18 == NULL) {
+var36 = 1;
+} else {
+if(cltype37 >= var_tkwendnode18->type->table_size) {
+var36 = 0;
+} else {
+var36 = var_tkwendnode18->type->type_table[cltype37] == idtype38;
+}
+}
+if (!var36) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5101);
+show_backtrace(1);
+}
+var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var40 = NULL;
+var41 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var40, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var41, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var39:AStdClassdef>*/;
+var_pclassdefnode1 = var39;
+var_node_list = var_pclassdefnode1;
+var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction97> */
+var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
+RET_LABEL:;
+}
+/* method parser#ReduceAction97#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction97__action(val* self, val* p0) {
+parser__ReduceAction97__action(self, p0);
+RET_LABEL:;
+}
+/* method parser#ReduceAction98#action for (self: ReduceAction98, Parser) */
+void parser__ReduceAction98__action(val* self, val* p0) {
+val* var_p /* var p: Parser */;
+val* var /* : null */;
+val* var_node_list /* var node_list: nullable Object */;
+val* var1 /* : nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var2 /* : nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var3 /* : nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var4 /* : nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var5 /* : nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var6 /* : nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var7 /* : nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var8 /* : nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
+val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var11 /* : Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
+val* var12 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var13 /* : Array[Object] */;
+val* var_listnode17 /* var listnode17: Array[Object] */;
+val* var_pdocnode2 /* var pdocnode2: nullable Object */;
+short int var14 /* : Bool */;
+int cltype;
+int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var_listnode7 /* var listnode7: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
+val* var30 /* : Array[Object] */;
+val* var31 /* : Array[Object] */;
+val* var_listnode13 /* var listnode13: Array[Object] */;
+val* var_listnode12 /* var listnode12: nullable Object */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
+val* var35 /* : Array[Object] */;
+val* var36 /* : AAnnotations */;
+val* var37 /* : null */;
+val* var38 /* : null */;
+val* var39 /* : null */;
+val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
+val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
+short int var40 /* : Bool */;
+int cltype41;
+int idtype42;
+val* var43 /* : AStdClassdef */;
+val* var44 /* : null */;
+val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var45 /* : Int */;
+long var46 /* : Int */;
+var_p = p0;
+var = NULL;
+var_node_list = var;
+var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist10 = var1;
+var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist9 = var2;
+var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist8 = var3;
+var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist7 = var4;
+var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist6 = var5;
+var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist5 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist4 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist3 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode8 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode16 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode17 = var13;
+var_pdocnode2 = var_nodearraylist1;
+/* <var_pdocnode2:nullable Object> isa nullable ADoc */
+cltype = type_nullable_parser_nodes__ADoc.color;
+idtype = type_nullable_parser_nodes__ADoc.id;
+if(var_pdocnode2 == NULL) {
+var14 = 1;
+} else {
+if(cltype >= var_pdocnode2->type->table_size) {
+var14 = 0;
+} else {
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
+}
+}
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5138);
+show_backtrace(1);
+}
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var15 = 1;
+} else {
+if(cltype16 >= var_tkwredefnode3->type->table_size) {
+var15 = 0;
+} else {
+var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+}
+}
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5140);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var18 = 1;
+} else {
+if(cltype19 >= var_pvisibilitynode4->type->table_size) {
+var18 = 0;
+} else {
+var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
+}
+}
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5142);
+show_backtrace(1);
+}
+var_pclasskindnode5 = var_nodearraylist4;
+/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
+cltype22 = type_nullable_parser_nodes__AClasskind.color;
+idtype23 = type_nullable_parser_nodes__AClasskind.id;
+if(var_pclasskindnode5 == NULL) {
+var21 = 1;
+} else {
+if(cltype22 >= var_pclasskindnode5->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
+}
+}
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5144);
+show_backtrace(1);
+}
+var_tclassidnode6 = var_nodearraylist6;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype25 = type_nullable_parser_nodes__TClassid.color;
+idtype26 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
+var24 = 1;
+} else {
+if(cltype25 >= var_tclassidnode6->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
+}
+}
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5146);
+show_backtrace(1);
+}
+var_listnode7 = var_nodearraylist7;
+/* <var_listnode7:nullable Object> isa Array[Object] */
+cltype28 = type_array__Arraykernel__Object.color;
+idtype29 = type_array__Arraykernel__Object.id;
+if(var_listnode7 == NULL) {
+var27 = 0;
+} else {
+if(cltype28 >= var_listnode7->type->table_size) {
+var27 = 0;
+} else {
+var27 = var_listnode7->type->type_table[cltype28] == idtype29;
+}
+}
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5148);
+show_backtrace(1);
+}
+var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction98>*/;
+var_listnode8 = var30;
+var31 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var31->class->vft[COLOR_array__Array__init]))(var31) /* init on <var31:Array[Object]>*/;
+var_listnode13 = var31;
+var_listnode12 = var_nodearraylist8;
+/* <var_listnode12:nullable Object> isa Array[Object] */
+cltype33 = type_array__Arraykernel__Object.color;
+idtype34 = type_array__Arraykernel__Object.id;
+if(var_listnode12 == NULL) {
+var32 = 0;
+} else {
+if(cltype33 >= var_listnode12->type->table_size) {
+var32 = 0;
+} else {
+var32 = var_listnode12->type->type_table[cltype33] == idtype34;
+}
+}
+if (!var32) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5152);
+show_backtrace(1);
+}
+var35 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction98>*/;
+var_listnode13 = var35;
+var36 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var37 = NULL;
+var38 = NULL;
+var39 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var36->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var36, var37, var38, var_listnode13, var39) /* init_aannotations on <var36:AAnnotations>*/;
+var_pannotationsnode9 = var36;
+var_tkwendnode18 = var_nodearraylist10;
+/* <var_tkwendnode18:nullable Object> isa nullable TKwend */
+cltype41 = type_nullable_parser_nodes__TKwend.color;
+idtype42 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode18 == NULL) {
+var40 = 1;
+} else {
+if(cltype41 >= var_tkwendnode18->type->table_size) {
+var40 = 0;
+} else {
+var40 = var_tkwendnode18->type->type_table[cltype41] == idtype42;
+}
+}
+if (!var40) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5161);
+show_backtrace(1);
+}
+var43 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var44 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var43->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var43, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var44, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var43:AStdClassdef>*/;
+var_pclassdefnode1 = var43;
+var_node_list = var_pclassdefnode1;
+var45 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction98> */
+var46 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var45) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var46, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction95#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction95__action(val* self, val* p0) {
-parser__ReduceAction95__action(self, p0);
+/* method parser#ReduceAction98#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction98__action(val* self, val* p0) {
+parser__ReduceAction98__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction97#action for (self: ReduceAction97, Parser) */
-void parser__ReduceAction97__action(val* self, val* p0) {
+/* method parser#ReduceAction99#action for (self: ReduceAction99, Parser) */
+void parser__ReduceAction99__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var13 /* : Array[Object] */;
 val* var_listnode17 /* var listnode17: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var26 /* : Array[Object] */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
 val* var27 /* : Array[Object] */;
+val* var28 /* : Array[Object] */;
 val* var_listnode13 /* var listnode13: Array[Object] */;
 val* var_listnode12 /* var listnode12: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var31 /* : Array[Object] */;
-val* var32 /* : AAnnotations */;
-val* var33 /* : null */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+val* var32 /* : Array[Object] */;
+val* var33 /* : AAnnotations */;
 val* var34 /* : null */;
 val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
 val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-val* var39 /* : AStdClassdef */;
-val* var40 /* : null */;
+short int var37 /* : Bool */;
+int cltype38;
+int idtype39;
+val* var40 /* : AStdClassdef */;
 val* var41 /* : null */;
+val* var42 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var42 /* : Int */;
 long var43 /* : Int */;
+long var44 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode8 = var10;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode16 = var11;
+var_listnode8 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode17 = var12;
+var_listnode16 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode17 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var13 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
+var14 = 0;
 } else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5328);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5198);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
-var14 = 0;
+if(cltype16 >= var_pvisibilitynode4->type->table_size) {
+var15 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5330);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5200);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype18 = type_nullable_parser_nodes__AClasskind.color;
-idtype19 = type_nullable_parser_nodes__AClasskind.id;
+cltype19 = type_nullable_parser_nodes__AClasskind.color;
+idtype20 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var17 = 1;
+var18 = 1;
 } else {
-if(cltype18 >= var_pclasskindnode5->type->table_size) {
-var17 = 0;
+if(cltype19 >= var_pclasskindnode5->type->table_size) {
+var18 = 0;
 } else {
-var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
+var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5332);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5202);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist5;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype21 = type_nullable_parser_nodes__TClassid.color;
-idtype22 = type_nullable_parser_nodes__TClassid.id;
+cltype22 = type_nullable_parser_nodes__TClassid.color;
+idtype23 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var20 = 1;
+var21 = 1;
 } else {
-if(cltype21 >= var_tclassidnode6->type->table_size) {
-var20 = 0;
+if(cltype22 >= var_tclassidnode6->type->table_size) {
+var21 = 0;
 } else {
-var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
+var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5334);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5204);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist6;
+var_listnode7 = var_nodearraylist7;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype24 = type_array__Arraykernel__Object.color;
-idtype25 = type_array__Arraykernel__Object.id;
+cltype25 = type_array__Arraykernel__Object.color;
+idtype26 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var23 = 0;
+var24 = 0;
 } else {
-if(cltype24 >= var_listnode7->type->table_size) {
-var23 = 0;
+if(cltype25 >= var_listnode7->type->table_size) {
+var24 = 0;
 } else {
-var23 = var_listnode7->type->type_table[cltype24] == idtype25;
+var24 = var_listnode7->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5336);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5206);
+show_backtrace(1);
 }
-var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction97>*/;
-var_listnode8 = var26;
-var27 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var27->class->vft[COLOR_array__Array__init]))(var27) /* init on <var27:Array[Object]>*/;
-CHECK_NEW_array__Array(var27);
-var_listnode13 = var27;
-var_listnode12 = var_nodearraylist7;
+var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction99>*/;
+var_listnode8 = var27;
+var28 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var28->class->vft[COLOR_array__Array__init]))(var28) /* init on <var28:Array[Object]>*/;
+var_listnode13 = var28;
+var_listnode12 = var_nodearraylist8;
 /* <var_listnode12:nullable Object> isa Array[Object] */
-cltype29 = type_array__Arraykernel__Object.color;
-idtype30 = type_array__Arraykernel__Object.id;
+cltype30 = type_array__Arraykernel__Object.color;
+idtype31 = type_array__Arraykernel__Object.id;
 if(var_listnode12 == NULL) {
-var28 = 0;
+var29 = 0;
 } else {
-if(cltype29 >= var_listnode12->type->table_size) {
-var28 = 0;
+if(cltype30 >= var_listnode12->type->table_size) {
+var29 = 0;
 } else {
-var28 = var_listnode12->type->type_table[cltype29] == idtype30;
+var29 = var_listnode12->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5340);
-exit(1);
+if (!var29) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5210);
+show_backtrace(1);
 }
-var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction97>*/;
-var_listnode13 = var31;
-var32 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var33 = NULL;
+var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction99>*/;
+var_listnode13 = var32;
+var33 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
 var34 = NULL;
 var35 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var32, var33, var34, var_listnode13, var35) /* init_aannotations on <var32:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var32);
-var_pannotationsnode9 = var32;
-var_tkwendnode18 = var_nodearraylist9;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var33, var34, var35, var_listnode13, var36) /* init_aannotations on <var33:AAnnotations>*/;
+var_pannotationsnode9 = var33;
+var_tkwendnode18 = var_nodearraylist10;
 /* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype37 = type_nullable_parser_nodes__TKwend.color;
-idtype38 = type_nullable_parser_nodes__TKwend.id;
+cltype38 = type_nullable_parser_nodes__TKwend.color;
+idtype39 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode18 == NULL) {
-var36 = 1;
+var37 = 1;
 } else {
-if(cltype37 >= var_tkwendnode18->type->table_size) {
-var36 = 0;
+if(cltype38 >= var_tkwendnode18->type->table_size) {
+var37 = 0;
 } else {
-var36 = var_tkwendnode18->type->type_table[cltype37] == idtype38;
+var37 = var_tkwendnode18->type->type_table[cltype38] == idtype39;
 }
 }
-if (!var36) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5349);
-exit(1);
+if (!var37) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5219);
+show_backtrace(1);
 }
-var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var40 = NULL;
+var40 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var41 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var40, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var41, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var39:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var39);
-var_pclassdefnode1 = var39;
+var42 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var40->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var40, var_pdocnode2, var41, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var42, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var40:AStdClassdef>*/;
+var_pclassdefnode1 = var40;
 var_node_list = var_pclassdefnode1;
-var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction97> */
-var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
+var43 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction99> */
+var44 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var43) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var44, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction97#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction97__action(val* self, val* p0) {
-parser__ReduceAction97__action(self, p0);
+/* method parser#ReduceAction99#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction99__action(val* self, val* p0) {
+parser__ReduceAction99__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction98#action for (self: ReduceAction98, Parser) */
-void parser__ReduceAction98__action(val* self, val* p0) {
+/* method parser#ReduceAction100#action for (self: ReduceAction100, Parser) */
+void parser__ReduceAction100__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode17 /* var listnode17: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var30 /* : Array[Object] */;
-val* var31 /* : Array[Object] */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : Array[Object] */;
+val* var29 /* : Array[Object] */;
 val* var_listnode13 /* var listnode13: Array[Object] */;
 val* var_listnode12 /* var listnode12: nullable Object */;
-short int var32 /* : Bool */;
-int cltype33;
-int idtype34;
-val* var35 /* : Array[Object] */;
-val* var36 /* : AAnnotations */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : Array[Object] */;
+val* var34 /* : AAnnotations */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var37 /* : null */;
-val* var38 /* : null */;
-val* var39 /* : null */;
 val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
 val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var40 /* : Bool */;
-int cltype41;
-int idtype42;
-val* var43 /* : AStdClassdef */;
-val* var44 /* : null */;
+short int var38 /* : Bool */;
+int cltype39;
+int idtype40;
+val* var41 /* : AStdClassdef */;
+val* var42 /* : null */;
+val* var43 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var44 /* : Int */;
 long var45 /* : Int */;
-long var46 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode8 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode16 = var12;
+var_listnode8 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode17 = var13;
+var_listnode16 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode17 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5386);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode3->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5388);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5257);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
+cltype17 = type_nullable_parser_nodes__AVisibility.color;
+idtype18 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var18 = 1;
+var16 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode4->type->table_size) {
-var18 = 0;
+if(cltype17 >= var_pvisibilitynode4->type->table_size) {
+var16 = 0;
 } else {
-var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
+var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5390);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5259);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype22 = type_nullable_parser_nodes__AClasskind.color;
-idtype23 = type_nullable_parser_nodes__AClasskind.id;
+cltype20 = type_nullable_parser_nodes__AClasskind.color;
+idtype21 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var21 = 1;
+var19 = 1;
 } else {
-if(cltype22 >= var_pclasskindnode5->type->table_size) {
-var21 = 0;
+if(cltype20 >= var_pclasskindnode5->type->table_size) {
+var19 = 0;
 } else {
-var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
+var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5392);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5261);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype25 = type_nullable_parser_nodes__TClassid.color;
-idtype26 = type_nullable_parser_nodes__TClassid.id;
+cltype23 = type_nullable_parser_nodes__TClassid.color;
+idtype24 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var24 = 1;
+var22 = 1;
 } else {
-if(cltype25 >= var_tclassidnode6->type->table_size) {
-var24 = 0;
+if(cltype23 >= var_tclassidnode6->type->table_size) {
+var22 = 0;
 } else {
-var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
+var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5394);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5263);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist7;
+var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype28 = type_array__Arraykernel__Object.color;
-idtype29 = type_array__Arraykernel__Object.id;
+cltype26 = type_array__Arraykernel__Object.color;
+idtype27 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var27 = 0;
+var25 = 0;
 } else {
-if(cltype28 >= var_listnode7->type->table_size) {
-var27 = 0;
+if(cltype26 >= var_listnode7->type->table_size) {
+var25 = 0;
 } else {
-var27 = var_listnode7->type->type_table[cltype28] == idtype29;
+var25 = var_listnode7->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5396);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5265);
+show_backtrace(1);
 }
-var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction98>*/;
-var_listnode8 = var30;
-var31 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var31->class->vft[COLOR_array__Array__init]))(var31) /* init on <var31:Array[Object]>*/;
-CHECK_NEW_array__Array(var31);
-var_listnode13 = var31;
-var_listnode12 = var_nodearraylist8;
+var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction100>*/;
+var_listnode8 = var28;
+var29 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var29->class->vft[COLOR_array__Array__init]))(var29) /* init on <var29:Array[Object]>*/;
+var_listnode13 = var29;
+var_listnode12 = var_nodearraylist9;
 /* <var_listnode12:nullable Object> isa Array[Object] */
-cltype33 = type_array__Arraykernel__Object.color;
-idtype34 = type_array__Arraykernel__Object.id;
+cltype31 = type_array__Arraykernel__Object.color;
+idtype32 = type_array__Arraykernel__Object.id;
 if(var_listnode12 == NULL) {
-var32 = 0;
+var30 = 0;
 } else {
-if(cltype33 >= var_listnode12->type->table_size) {
-var32 = 0;
+if(cltype31 >= var_listnode12->type->table_size) {
+var30 = 0;
 } else {
-var32 = var_listnode12->type->type_table[cltype33] == idtype34;
+var30 = var_listnode12->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5400);
-exit(1);
+if (!var30) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5269);
+show_backtrace(1);
 }
-var35 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction98>*/;
-var_listnode13 = var35;
-var36 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var33 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction100>*/;
+var_listnode13 = var33;
+var34 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var35 = NULL;
+var36 = NULL;
 var37 = NULL;
-var38 = NULL;
-var39 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var36->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var36, var37, var38, var_listnode13, var39) /* init_aannotations on <var36:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var36);
-var_pannotationsnode9 = var36;
-var_tkwendnode18 = var_nodearraylist10;
+((void (*)(val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var34, var35, var36, var_listnode13, var37) /* init_aannotations on <var34:AAnnotations>*/;
+var_pannotationsnode9 = var34;
+var_tkwendnode18 = var_nodearraylist11;
 /* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype41 = type_nullable_parser_nodes__TKwend.color;
-idtype42 = type_nullable_parser_nodes__TKwend.id;
+cltype39 = type_nullable_parser_nodes__TKwend.color;
+idtype40 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode18 == NULL) {
-var40 = 1;
+var38 = 1;
 } else {
-if(cltype41 >= var_tkwendnode18->type->table_size) {
-var40 = 0;
+if(cltype39 >= var_tkwendnode18->type->table_size) {
+var38 = 0;
 } else {
-var40 = var_tkwendnode18->type->type_table[cltype41] == idtype42;
+var38 = var_tkwendnode18->type->type_table[cltype39] == idtype40;
 }
 }
-if (!var40) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5409);
-exit(1);
+if (!var38) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5278);
+show_backtrace(1);
 }
-var43 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var44 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var43->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var43, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var44, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var43:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var43);
-var_pclassdefnode1 = var43;
+var41 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var42 = NULL;
+var43 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var41->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var41, var_pdocnode2, var42, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var43, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var41:AStdClassdef>*/;
+var_pclassdefnode1 = var41;
 var_node_list = var_pclassdefnode1;
-var45 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction98> */
-var46 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var45) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var46, var_node_list) /* push on <var_p:Parser>*/;
+var44 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction100> */
+var45 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var44) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var45, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction98#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction98__action(val* self, val* p0) {
-parser__ReduceAction98__action(self, p0);
+/* method parser#ReduceAction100#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction100__action(val* self, val* p0) {
+parser__ReduceAction100__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction99#action for (self: ReduceAction99, Parser) */
-void parser__ReduceAction99__action(val* self, val* p0) {
+/* method parser#ReduceAction102#action for (self: ReduceAction102, Parser) */
+void parser__ReduceAction102__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode17 /* var listnode17: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : Array[Object] */;
-val* var28 /* : Array[Object] */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+val* var31 /* : Array[Object] */;
+val* var32 /* : Array[Object] */;
 val* var_listnode13 /* var listnode13: Array[Object] */;
 val* var_listnode12 /* var listnode12: nullable Object */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-val* var32 /* : Array[Object] */;
-val* var33 /* : AAnnotations */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+val* var36 /* : Array[Object] */;
+val* var37 /* : AAnnotations */;
+val* var38 /* : null */;
+val* var39 /* : null */;
+val* var40 /* : null */;
 val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
 val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-val* var40 /* : AStdClassdef */;
-val* var41 /* : null */;
-val* var42 /* : null */;
+short int var41 /* : Bool */;
+int cltype42;
+int idtype43;
+val* var44 /* : AStdClassdef */;
+val* var45 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var43 /* : Int */;
-long var44 /* : Int */;
+long var46 /* : Int */;
+long var47 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode8 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode16 = var12;
+var_listnode8 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode17 = var13;
+var_listnode16 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode17 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
+var15 = 0;
 } else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5446);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5316);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype17 = type_nullable_parser_nodes__TKwredef.color;
+idtype18 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var16 = 1;
+} else {
+if(cltype17 >= var_tkwredefnode3->type->table_size) {
+var16 = 0;
+} else {
+var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+}
+}
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5318);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
+cltype20 = type_nullable_parser_nodes__AVisibility.color;
+idtype21 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var15 = 1;
+var19 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode4->type->table_size) {
-var15 = 0;
+if(cltype20 >= var_pvisibilitynode4->type->table_size) {
+var19 = 0;
 } else {
-var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
+var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5448);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5320);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype19 = type_nullable_parser_nodes__AClasskind.color;
-idtype20 = type_nullable_parser_nodes__AClasskind.id;
+cltype23 = type_nullable_parser_nodes__AClasskind.color;
+idtype24 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var18 = 1;
+var22 = 1;
 } else {
-if(cltype19 >= var_pclasskindnode5->type->table_size) {
-var18 = 0;
+if(cltype23 >= var_pclasskindnode5->type->table_size) {
+var22 = 0;
 } else {
-var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
+var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5450);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5322);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype22 = type_nullable_parser_nodes__TClassid.color;
-idtype23 = type_nullable_parser_nodes__TClassid.id;
+cltype26 = type_nullable_parser_nodes__TClassid.color;
+idtype27 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var21 = 1;
+var25 = 1;
 } else {
-if(cltype22 >= var_tclassidnode6->type->table_size) {
-var21 = 0;
+if(cltype26 >= var_tclassidnode6->type->table_size) {
+var25 = 0;
 } else {
-var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
+var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5452);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5324);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist7;
+var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype25 = type_array__Arraykernel__Object.color;
-idtype26 = type_array__Arraykernel__Object.id;
+cltype29 = type_array__Arraykernel__Object.color;
+idtype30 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var24 = 0;
+var28 = 0;
 } else {
-if(cltype25 >= var_listnode7->type->table_size) {
-var24 = 0;
+if(cltype29 >= var_listnode7->type->table_size) {
+var28 = 0;
 } else {
-var24 = var_listnode7->type->type_table[cltype25] == idtype26;
-}
+var28 = var_listnode7->type->type_table[cltype29] == idtype30;
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5454);
-exit(1);
 }
-var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction99>*/;
-var_listnode8 = var27;
-var28 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var28->class->vft[COLOR_array__Array__init]))(var28) /* init on <var28:Array[Object]>*/;
-CHECK_NEW_array__Array(var28);
-var_listnode13 = var28;
-var_listnode12 = var_nodearraylist8;
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5326);
+show_backtrace(1);
+}
+var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction102>*/;
+var_listnode8 = var31;
+var32 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var32->class->vft[COLOR_array__Array__init]))(var32) /* init on <var32:Array[Object]>*/;
+var_listnode13 = var32;
+var_listnode12 = var_nodearraylist9;
 /* <var_listnode12:nullable Object> isa Array[Object] */
-cltype30 = type_array__Arraykernel__Object.color;
-idtype31 = type_array__Arraykernel__Object.id;
+cltype34 = type_array__Arraykernel__Object.color;
+idtype35 = type_array__Arraykernel__Object.id;
 if(var_listnode12 == NULL) {
-var29 = 0;
+var33 = 0;
 } else {
-if(cltype30 >= var_listnode12->type->table_size) {
-var29 = 0;
+if(cltype34 >= var_listnode12->type->table_size) {
+var33 = 0;
 } else {
-var29 = var_listnode12->type->type_table[cltype30] == idtype31;
+var33 = var_listnode12->type->type_table[cltype34] == idtype35;
 }
 }
-if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5458);
-exit(1);
+if (!var33) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5330);
+show_backtrace(1);
 }
-var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction99>*/;
-var_listnode13 = var32;
-var33 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var33, var34, var35, var_listnode13, var36) /* init_aannotations on <var33:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var33);
-var_pannotationsnode9 = var33;
-var_tkwendnode18 = var_nodearraylist10;
+var36 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction102>*/;
+var_listnode13 = var36;
+var37 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var38 = NULL;
+var39 = NULL;
+var40 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var37, var38, var39, var_listnode13, var40) /* init_aannotations on <var37:AAnnotations>*/;
+var_pannotationsnode9 = var37;
+var_tkwendnode18 = var_nodearraylist11;
 /* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype38 = type_nullable_parser_nodes__TKwend.color;
-idtype39 = type_nullable_parser_nodes__TKwend.id;
+cltype42 = type_nullable_parser_nodes__TKwend.color;
+idtype43 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode18 == NULL) {
-var37 = 1;
+var41 = 1;
 } else {
-if(cltype38 >= var_tkwendnode18->type->table_size) {
-var37 = 0;
+if(cltype42 >= var_tkwendnode18->type->table_size) {
+var41 = 0;
 } else {
-var37 = var_tkwendnode18->type->type_table[cltype38] == idtype39;
+var41 = var_tkwendnode18->type->type_table[cltype42] == idtype43;
 }
 }
-if (!var37) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5467);
-exit(1);
+if (!var41) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5339);
+show_backtrace(1);
 }
-var40 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var41 = NULL;
-var42 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var40->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var40, var_pdocnode2, var41, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var42, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var40:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var40);
-var_pclassdefnode1 = var40;
+var44 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var45 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var44->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var44, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var45, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var44:AStdClassdef>*/;
+var_pclassdefnode1 = var44;
 var_node_list = var_pclassdefnode1;
-var43 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction99> */
-var44 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var43) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var44, var_node_list) /* push on <var_p:Parser>*/;
+var46 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction102> */
+var47 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var46) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var47, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction99#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction99__action(val* self, val* p0) {
-parser__ReduceAction99__action(self, p0);
+/* method parser#ReduceAction102#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction102__action(val* self, val* p0) {
+parser__ReduceAction102__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction100#action for (self: ReduceAction100, Parser) */
-void parser__ReduceAction100__action(val* self, val* p0) {
+/* method parser#ReduceAction103#action for (self: ReduceAction103, Parser) */
+void parser__ReduceAction103__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
+val* var_nodearraylist12 /* var nodearraylist12: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var10 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var11 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var12 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var12 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var14 /* : Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
+val* var15 /* : Array[Object] */;
 val* var_listnode17 /* var listnode17: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var16 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : Array[Object] */;
-val* var29 /* : Array[Object] */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+val* var32 /* : Array[Object] */;
+val* var33 /* : Array[Object] */;
 val* var_listnode13 /* var listnode13: Array[Object] */;
 val* var_listnode12 /* var listnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : Array[Object] */;
-val* var34 /* : AAnnotations */;
-val* var35 /* : null */;
-val* var36 /* : null */;
-val* var37 /* : null */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+val* var37 /* : Array[Object] */;
+val* var38 /* : AAnnotations */;
+val* var39 /* : null */;
+val* var40 /* : null */;
+val* var41 /* : null */;
 val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
 val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-val* var41 /* : AStdClassdef */;
-val* var42 /* : null */;
-val* var43 /* : null */;
+short int var42 /* : Bool */;
+int cltype43;
+int idtype44;
+val* var45 /* : AStdClassdef */;
+val* var46 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var44 /* : Int */;
-long var45 /* : Int */;
+long var47 /* : Int */;
+long var48 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist12 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist11 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist10 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist9 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist8 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist7 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist6 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
+var_nodearraylist5 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
+var_nodearraylist4 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
+var_nodearraylist3 = var10;
 var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
-var12 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode8 = var12;
+var_nodearraylist2 = var11;
+var12 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode16 = var13;
+var_listnode8 = var13;
 var14 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode17 = var14;
+var_listnode16 = var14;
+var15 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var15->class->vft[COLOR_array__Array__init]))(var15) /* init on <var15:Array[Object]>*/;
+var_listnode17 = var15;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var16 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
+var16 = 0;
 } else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
+var16 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5505);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5378);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype18 = type_nullable_parser_nodes__TKwredef.color;
+idtype19 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_tkwredefnode3->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_tkwredefnode3->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5380);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype17 = type_nullable_parser_nodes__AVisibility.color;
-idtype18 = type_nullable_parser_nodes__AVisibility.id;
+cltype21 = type_nullable_parser_nodes__AVisibility.color;
+idtype22 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var16 = 1;
+var20 = 1;
 } else {
-if(cltype17 >= var_pvisibilitynode4->type->table_size) {
-var16 = 0;
+if(cltype21 >= var_pvisibilitynode4->type->table_size) {
+var20 = 0;
 } else {
-var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
+var20 = var_pvisibilitynode4->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5507);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5382);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype20 = type_nullable_parser_nodes__AClasskind.color;
-idtype21 = type_nullable_parser_nodes__AClasskind.id;
+cltype24 = type_nullable_parser_nodes__AClasskind.color;
+idtype25 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var19 = 1;
+var23 = 1;
 } else {
-if(cltype20 >= var_pclasskindnode5->type->table_size) {
-var19 = 0;
+if(cltype24 >= var_pclasskindnode5->type->table_size) {
+var23 = 0;
 } else {
-var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
+var23 = var_pclasskindnode5->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5509);
-exit(1);
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5384);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype23 = type_nullable_parser_nodes__TClassid.color;
-idtype24 = type_nullable_parser_nodes__TClassid.id;
+cltype27 = type_nullable_parser_nodes__TClassid.color;
+idtype28 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var22 = 1;
+var26 = 1;
 } else {
-if(cltype23 >= var_tclassidnode6->type->table_size) {
-var22 = 0;
+if(cltype27 >= var_tclassidnode6->type->table_size) {
+var26 = 0;
 } else {
-var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
+var26 = var_tclassidnode6->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5511);
-exit(1);
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5386);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist8;
+var_listnode7 = var_nodearraylist9;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype26 = type_array__Arraykernel__Object.color;
-idtype27 = type_array__Arraykernel__Object.id;
+cltype30 = type_array__Arraykernel__Object.color;
+idtype31 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var25 = 0;
+var29 = 0;
 } else {
-if(cltype26 >= var_listnode7->type->table_size) {
-var25 = 0;
+if(cltype30 >= var_listnode7->type->table_size) {
+var29 = 0;
 } else {
-var25 = var_listnode7->type->type_table[cltype26] == idtype27;
+var29 = var_listnode7->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5513);
-exit(1);
+if (!var29) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5388);
+show_backtrace(1);
 }
-var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction100>*/;
-var_listnode8 = var28;
-var29 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var29->class->vft[COLOR_array__Array__init]))(var29) /* init on <var29:Array[Object]>*/;
-CHECK_NEW_array__Array(var29);
-var_listnode13 = var29;
-var_listnode12 = var_nodearraylist9;
+var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction103>*/;
+var_listnode8 = var32;
+var33 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var33->class->vft[COLOR_array__Array__init]))(var33) /* init on <var33:Array[Object]>*/;
+var_listnode13 = var33;
+var_listnode12 = var_nodearraylist10;
 /* <var_listnode12:nullable Object> isa Array[Object] */
-cltype31 = type_array__Arraykernel__Object.color;
-idtype32 = type_array__Arraykernel__Object.id;
+cltype35 = type_array__Arraykernel__Object.color;
+idtype36 = type_array__Arraykernel__Object.id;
 if(var_listnode12 == NULL) {
-var30 = 0;
+var34 = 0;
 } else {
-if(cltype31 >= var_listnode12->type->table_size) {
-var30 = 0;
+if(cltype35 >= var_listnode12->type->table_size) {
+var34 = 0;
 } else {
-var30 = var_listnode12->type->type_table[cltype31] == idtype32;
+var34 = var_listnode12->type->type_table[cltype35] == idtype36;
 }
 }
-if (!var30) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5517);
-exit(1);
+if (!var34) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5392);
+show_backtrace(1);
 }
-var33 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction100>*/;
-var_listnode13 = var33;
-var34 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var35 = NULL;
-var36 = NULL;
-var37 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var34, var35, var36, var_listnode13, var37) /* init_aannotations on <var34:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var34);
-var_pannotationsnode9 = var34;
-var_tkwendnode18 = var_nodearraylist11;
+var37 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction103>*/;
+var_listnode13 = var37;
+var38 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var39 = NULL;
+var40 = NULL;
+var41 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var38, var39, var40, var_listnode13, var41) /* init_aannotations on <var38:AAnnotations>*/;
+var_pannotationsnode9 = var38;
+var_tkwendnode18 = var_nodearraylist12;
 /* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype39 = type_nullable_parser_nodes__TKwend.color;
-idtype40 = type_nullable_parser_nodes__TKwend.id;
+cltype43 = type_nullable_parser_nodes__TKwend.color;
+idtype44 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode18 == NULL) {
-var38 = 1;
+var42 = 1;
 } else {
-if(cltype39 >= var_tkwendnode18->type->table_size) {
-var38 = 0;
+if(cltype43 >= var_tkwendnode18->type->table_size) {
+var42 = 0;
 } else {
-var38 = var_tkwendnode18->type->type_table[cltype39] == idtype40;
+var42 = var_tkwendnode18->type->type_table[cltype43] == idtype44;
 }
 }
-if (!var38) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5526);
-exit(1);
+if (!var42) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5401);
+show_backtrace(1);
 }
-var41 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var42 = NULL;
-var43 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var41->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var41, var_pdocnode2, var42, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var43, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var41:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var41);
-var_pclassdefnode1 = var41;
+var45 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var46 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var45->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var45, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var46, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var45:AStdClassdef>*/;
+var_pclassdefnode1 = var45;
 var_node_list = var_pclassdefnode1;
-var44 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction100> */
-var45 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var44) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var45, var_node_list) /* push on <var_p:Parser>*/;
+var47 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction103> */
+var48 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var47) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var48, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction100#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction100__action(val* self, val* p0) {
-parser__ReduceAction100__action(self, p0);
+/* method parser#ReduceAction103#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction103__action(val* self, val* p0) {
+parser__ReduceAction103__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction102#action for (self: ReduceAction102, Parser) */
-void parser__ReduceAction102__action(val* self, val* p0) {
+/* method parser#ReduceAction105#action for (self: ReduceAction105, Parser) */
+void parser__ReduceAction105__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var3 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var4 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var12 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
-val* var13 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
-val* var14 /* : Array[Object] */;
-val* var_listnode17 /* var listnode17: Array[Object] */;
+val* var9 /* : Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
+val* var10 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var12 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
 short int var19 /* : Bool */;
 int cltype20;
 int idtype21;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
 short int var22 /* : Bool */;
 int cltype23;
 int idtype24;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
 short int var25 /* : Bool */;
 int cltype26;
 int idtype27;
-val* var_listnode7 /* var listnode7: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var31 /* : Array[Object] */;
-val* var32 /* : Array[Object] */;
-val* var_listnode13 /* var listnode13: Array[Object] */;
-val* var_listnode12 /* var listnode12: nullable Object */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-val* var36 /* : Array[Object] */;
-val* var37 /* : AAnnotations */;
-val* var38 /* : null */;
-val* var39 /* : null */;
-val* var40 /* : null */;
-val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
-val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var41 /* : Bool */;
-int cltype42;
-int idtype43;
-val* var44 /* : AStdClassdef */;
-val* var45 /* : null */;
+val* var28 /* : AStdClassdef */;
+val* var29 /* : null */;
+val* var30 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var46 /* : Int */;
-long var47 /* : Int */;
+long var31 /* : Int */;
+long var32 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist2 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
-var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
-var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
-var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
-var12 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode8 = var12;
-var13 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode16 = var13;
-var14 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode17 = var14;
+var_nodearraylist1 = var8;
+var9 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
+var_listnode7 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode10 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode11 = var11;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var12 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
+var12 = 0;
 } else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
+var12 = var_pdocnode2->type->type_table[cltype] == idtype;
+}
+}
+if (!var12) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5436);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype14 = type_nullable_parser_nodes__AVisibility.color;
+idtype15 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var13 = 1;
+} else {
+if(cltype14 >= var_pvisibilitynode4->type->table_size) {
+var13 = 0;
+} else {
+var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5564);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5438);
+show_backtrace(1);
 }
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype17 = type_nullable_parser_nodes__TKwredef.color;
-idtype18 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
+var_pclasskindnode5 = var_nodearraylist3;
+/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
+cltype17 = type_nullable_parser_nodes__AClasskind.color;
+idtype18 = type_nullable_parser_nodes__AClasskind.id;
+if(var_pclasskindnode5 == NULL) {
 var16 = 1;
 } else {
-if(cltype17 >= var_tkwredefnode3->type->table_size) {
+if(cltype17 >= var_pclasskindnode5->type->table_size) {
 var16 = 0;
 } else {
-var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5566);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5440);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
-/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype20 = type_nullable_parser_nodes__AVisibility.color;
-idtype21 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode4 == NULL) {
+var_tclassidnode6 = var_nodearraylist5;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype20 = type_nullable_parser_nodes__TClassid.color;
+idtype21 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
 var19 = 1;
 } else {
-if(cltype20 >= var_pvisibilitynode4->type->table_size) {
+if(cltype20 >= var_tclassidnode6->type->table_size) {
 var19 = 0;
 } else {
-var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
+var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5568);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5442);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
-/* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype23 = type_nullable_parser_nodes__AClasskind.color;
-idtype24 = type_nullable_parser_nodes__AClasskind.id;
-if(var_pclasskindnode5 == NULL) {
+var_pexterncodeblocknode9 = var_nodearraylist6;
+/* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
+cltype23 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype24 = type_nullable_parser_nodes__AExternCodeBlock.id;
+if(var_pexterncodeblocknode9 == NULL) {
 var22 = 1;
 } else {
-if(cltype23 >= var_pclasskindnode5->type->table_size) {
+if(cltype23 >= var_pexterncodeblocknode9->type->table_size) {
 var22 = 0;
 } else {
-var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
+var22 = var_pexterncodeblocknode9->type->type_table[cltype23] == idtype24;
 }
 }
 if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5570);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5444);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
-/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype26 = type_nullable_parser_nodes__TClassid.color;
-idtype27 = type_nullable_parser_nodes__TClassid.id;
-if(var_tclassidnode6 == NULL) {
+var_tkwendnode12 = var_nodearraylist8;
+/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
+cltype26 = type_nullable_parser_nodes__TKwend.color;
+idtype27 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode12 == NULL) {
 var25 = 1;
 } else {
-if(cltype26 >= var_tclassidnode6->type->table_size) {
+if(cltype26 >= var_tkwendnode12->type->table_size) {
 var25 = 0;
 } else {
-var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
+var25 = var_tkwendnode12->type->type_table[cltype26] == idtype27;
 }
 }
 if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5572);
-exit(1);
-}
-var_listnode7 = var_nodearraylist8;
-/* <var_listnode7:nullable Object> isa Array[Object] */
-cltype29 = type_array__Arraykernel__Object.color;
-idtype30 = type_array__Arraykernel__Object.id;
-if(var_listnode7 == NULL) {
-var28 = 0;
-} else {
-if(cltype29 >= var_listnode7->type->table_size) {
-var28 = 0;
-} else {
-var28 = var_listnode7->type->type_table[cltype29] == idtype30;
-}
-}
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5574);
-exit(1);
-}
-var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction102>*/;
-var_listnode8 = var31;
-var32 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var32->class->vft[COLOR_array__Array__init]))(var32) /* init on <var32:Array[Object]>*/;
-CHECK_NEW_array__Array(var32);
-var_listnode13 = var32;
-var_listnode12 = var_nodearraylist9;
-/* <var_listnode12:nullable Object> isa Array[Object] */
-cltype34 = type_array__Arraykernel__Object.color;
-idtype35 = type_array__Arraykernel__Object.id;
-if(var_listnode12 == NULL) {
-var33 = 0;
-} else {
-if(cltype34 >= var_listnode12->type->table_size) {
-var33 = 0;
-} else {
-var33 = var_listnode12->type->type_table[cltype34] == idtype35;
-}
-}
-if (!var33) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5578);
-exit(1);
-}
-var36 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction102>*/;
-var_listnode13 = var36;
-var37 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var38 = NULL;
-var39 = NULL;
-var40 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var37, var38, var39, var_listnode13, var40) /* init_aannotations on <var37:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var37);
-var_pannotationsnode9 = var37;
-var_tkwendnode18 = var_nodearraylist11;
-/* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype42 = type_nullable_parser_nodes__TKwend.color;
-idtype43 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode18 == NULL) {
-var41 = 1;
-} else {
-if(cltype42 >= var_tkwendnode18->type->table_size) {
-var41 = 0;
-} else {
-var41 = var_tkwendnode18->type->type_table[cltype42] == idtype43;
-}
-}
-if (!var41) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5587);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5446);
+show_backtrace(1);
 }
-var44 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var45 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var44->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var44, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var45, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var44:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var44);
-var_pclassdefnode1 = var44;
+var28 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var29 = NULL;
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var28, var_pdocnode2, var29, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var30, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var28:AStdClassdef>*/;
+var_pclassdefnode1 = var28;
 var_node_list = var_pclassdefnode1;
-var46 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction102> */
-var47 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var46) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var47, var_node_list) /* push on <var_p:Parser>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction105> */
+var32 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var31) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var32, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction102#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction102__action(val* self, val* p0) {
-parser__ReduceAction102__action(self, p0);
+/* method parser#ReduceAction105#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction105__action(val* self, val* p0) {
+parser__ReduceAction105__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction103#action for (self: ReduceAction103, Parser) */
-void parser__ReduceAction103__action(val* self, val* p0) {
+/* method parser#ReduceAction106#action for (self: ReduceAction106, Parser) */
+void parser__ReduceAction106__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist12 /* var nodearraylist12: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
-val* var3 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var4 /* : nullable Object */;
 val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var12 /* : nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var13 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
-val* var14 /* : Array[Object] */;
-val* var_listnode16 /* var listnode16: Array[Object] */;
-val* var15 /* : Array[Object] */;
-val* var_listnode17 /* var listnode17: Array[Object] */;
+val* var10 /* : Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var12 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var16 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
 short int var23 /* : Bool */;
 int cltype24;
 int idtype25;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
 short int var26 /* : Bool */;
 int cltype27;
 int idtype28;
-val* var_listnode7 /* var listnode7: nullable Object */;
+val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
 short int var29 /* : Bool */;
 int cltype30;
 int idtype31;
-val* var32 /* : Array[Object] */;
-val* var33 /* : Array[Object] */;
-val* var_listnode13 /* var listnode13: Array[Object] */;
-val* var_listnode12 /* var listnode12: nullable Object */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-val* var37 /* : Array[Object] */;
-val* var38 /* : AAnnotations */;
-val* var39 /* : null */;
-val* var40 /* : null */;
-val* var41 /* : null */;
-val* var_pannotationsnode9 /* var pannotationsnode9: nullable AAnnotations */;
-val* var_tkwendnode18 /* var tkwendnode18: nullable Object */;
-short int var42 /* : Bool */;
-int cltype43;
-int idtype44;
-val* var45 /* : AStdClassdef */;
-val* var46 /* : null */;
+val* var32 /* : AStdClassdef */;
+val* var33 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var47 /* : Int */;
-long var48 /* : Int */;
+long var34 /* : Int */;
+long var35 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist12 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var7;
+var_nodearraylist3 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var8;
+var_nodearraylist2 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var9;
-var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var10;
-var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var11;
-var12 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var12;
-var13 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode8 = var13;
-var14 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode16 = var14;
-var15 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var15->class->vft[COLOR_array__Array__init]))(var15) /* init on <var15:Array[Object]>*/;
-CHECK_NEW_array__Array(var15);
-var_listnode17 = var15;
+var_nodearraylist1 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode7 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode10 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode11 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var16 = 1;
+var13 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var16 = 0;
+var13 = 0;
 } else {
-var16 = var_pdocnode2->type->type_table[cltype] == idtype;
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5626);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5482);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype18 = type_nullable_parser_nodes__TKwredef.color;
-idtype19 = type_nullable_parser_nodes__TKwredef.id;
+cltype15 = type_nullable_parser_nodes__TKwredef.color;
+idtype16 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var17 = 1;
+var14 = 1;
 } else {
-if(cltype18 >= var_tkwredefnode3->type->table_size) {
-var17 = 0;
+if(cltype15 >= var_tkwredefnode3->type->table_size) {
+var14 = 0;
 } else {
-var17 = var_tkwredefnode3->type->type_table[cltype18] == idtype19;
+var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5628);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5484);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype21 = type_nullable_parser_nodes__AVisibility.color;
-idtype22 = type_nullable_parser_nodes__AVisibility.id;
+cltype18 = type_nullable_parser_nodes__AVisibility.color;
+idtype19 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var20 = 1;
+var17 = 1;
 } else {
-if(cltype21 >= var_pvisibilitynode4->type->table_size) {
-var20 = 0;
+if(cltype18 >= var_pvisibilitynode4->type->table_size) {
+var17 = 0;
 } else {
-var20 = var_pvisibilitynode4->type->type_table[cltype21] == idtype22;
+var17 = var_pvisibilitynode4->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5630);
-exit(1);
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5486);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype24 = type_nullable_parser_nodes__AClasskind.color;
-idtype25 = type_nullable_parser_nodes__AClasskind.id;
+cltype21 = type_nullable_parser_nodes__AClasskind.color;
+idtype22 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_pclasskindnode5->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_pclasskindnode5->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5488);
+show_backtrace(1);
+}
+var_tclassidnode6 = var_nodearraylist6;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype24 = type_nullable_parser_nodes__TClassid.color;
+idtype25 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
 var23 = 1;
 } else {
-if(cltype24 >= var_pclasskindnode5->type->table_size) {
+if(cltype24 >= var_tclassidnode6->type->table_size) {
 var23 = 0;
 } else {
-var23 = var_pclasskindnode5->type->type_table[cltype24] == idtype25;
+var23 = var_tclassidnode6->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5632);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5490);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist8;
-/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype27 = type_nullable_parser_nodes__TClassid.color;
-idtype28 = type_nullable_parser_nodes__TClassid.id;
-if(var_tclassidnode6 == NULL) {
+var_pexterncodeblocknode9 = var_nodearraylist7;
+/* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
+cltype27 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype28 = type_nullable_parser_nodes__AExternCodeBlock.id;
+if(var_pexterncodeblocknode9 == NULL) {
 var26 = 1;
 } else {
-if(cltype27 >= var_tclassidnode6->type->table_size) {
+if(cltype27 >= var_pexterncodeblocknode9->type->table_size) {
 var26 = 0;
 } else {
-var26 = var_tclassidnode6->type->type_table[cltype27] == idtype28;
+var26 = var_pexterncodeblocknode9->type->type_table[cltype27] == idtype28;
 }
 }
 if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5634);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5492);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist9;
-/* <var_listnode7:nullable Object> isa Array[Object] */
-cltype30 = type_array__Arraykernel__Object.color;
-idtype31 = type_array__Arraykernel__Object.id;
-if(var_listnode7 == NULL) {
-var29 = 0;
+var_tkwendnode12 = var_nodearraylist9;
+/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
+cltype30 = type_nullable_parser_nodes__TKwend.color;
+idtype31 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode12 == NULL) {
+var29 = 1;
 } else {
-if(cltype30 >= var_listnode7->type->table_size) {
+if(cltype30 >= var_tkwendnode12->type->table_size) {
 var29 = 0;
 } else {
-var29 = var_listnode7->type->type_table[cltype30] == idtype31;
+var29 = var_tkwendnode12->type->type_table[cltype30] == idtype31;
 }
 }
 if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5636);
-exit(1);
-}
-var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction103>*/;
-var_listnode8 = var32;
-var33 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var33->class->vft[COLOR_array__Array__init]))(var33) /* init on <var33:Array[Object]>*/;
-CHECK_NEW_array__Array(var33);
-var_listnode13 = var33;
-var_listnode12 = var_nodearraylist10;
-/* <var_listnode12:nullable Object> isa Array[Object] */
-cltype35 = type_array__Arraykernel__Object.color;
-idtype36 = type_array__Arraykernel__Object.id;
-if(var_listnode12 == NULL) {
-var34 = 0;
-} else {
-if(cltype35 >= var_listnode12->type->table_size) {
-var34 = 0;
-} else {
-var34 = var_listnode12->type->type_table[cltype35] == idtype36;
-}
-}
-if (!var34) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5640);
-exit(1);
-}
-var37 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode13, var_listnode12) /* concat on <self:ReduceAction103>*/;
-var_listnode13 = var37;
-var38 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var39 = NULL;
-var40 = NULL;
-var41 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var38, var39, var40, var_listnode13, var41) /* init_aannotations on <var38:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var38);
-var_pannotationsnode9 = var38;
-var_tkwendnode18 = var_nodearraylist12;
-/* <var_tkwendnode18:nullable Object> isa nullable TKwend */
-cltype43 = type_nullable_parser_nodes__TKwend.color;
-idtype44 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode18 == NULL) {
-var42 = 1;
-} else {
-if(cltype43 >= var_tkwendnode18->type->table_size) {
-var42 = 0;
-} else {
-var42 = var_tkwendnode18->type->type_table[cltype43] == idtype44;
-}
-}
-if (!var42) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5649);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5494);
+show_backtrace(1);
 }
-var45 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var46 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var45->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var45, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var_pannotationsnode9, var46, var_listnode16, var_listnode17, var_tkwendnode18) /* init_astdclassdef on <var45:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var45);
-var_pclassdefnode1 = var45;
+var32 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var32, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var33, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var32:AStdClassdef>*/;
+var_pclassdefnode1 = var32;
 var_node_list = var_pclassdefnode1;
-var47 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction103> */
-var48 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var47) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var48, var_node_list) /* push on <var_p:Parser>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction106> */
+var35 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var34) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var35, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction103#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction103__action(val* self, val* p0) {
-parser__ReduceAction103__action(self, p0);
+/* method parser#ReduceAction106#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction106__action(val* self, val* p0) {
+parser__ReduceAction106__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction105#action for (self: ReduceAction105, Parser) */
-void parser__ReduceAction105__action(val* self, val* p0) {
+/* method parser#ReduceAction107#action for (self: ReduceAction107, Parser) */
+void parser__ReduceAction107__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var8 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var9 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var10 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var11 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var12 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var12 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : AStdClassdef */;
-val* var29 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AStdClassdef */;
 val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var31 /* : Int */;
 long var32 /* : Int */;
+long var33 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
+var_nodearraylist3 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
-var9 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var9->class->vft[COLOR_array__Array__init]))(var9) /* init on <var9:Array[Object]>*/;
-CHECK_NEW_array__Array(var9);
-var_listnode7 = var9;
+var_nodearraylist2 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var9;
 var10 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode10 = var10;
+var_listnode7 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode11 = var11;
+var_listnode10 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode11 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var12 = 1;
+var13 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var12 = 0;
+var13 = 0;
 } else {
-var12 = var_pdocnode2->type->type_table[cltype] == idtype;
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var12) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5684);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5530);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var13 = 1;
+var14 = 1;
 } else {
-if(cltype14 >= var_pvisibilitynode4->type->table_size) {
-var13 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5686);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5532);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype17 = type_nullable_parser_nodes__AClasskind.color;
-idtype18 = type_nullable_parser_nodes__AClasskind.id;
+cltype18 = type_nullable_parser_nodes__AClasskind.color;
+idtype19 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var16 = 1;
+var17 = 1;
 } else {
-if(cltype17 >= var_pclasskindnode5->type->table_size) {
-var16 = 0;
+if(cltype18 >= var_pclasskindnode5->type->table_size) {
+var17 = 0;
 } else {
-var16 = var_pclasskindnode5->type->type_table[cltype17] == idtype18;
+var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5688);
-exit(1);
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5534);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist5;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype20 = type_nullable_parser_nodes__TClassid.color;
-idtype21 = type_nullable_parser_nodes__TClassid.id;
+cltype21 = type_nullable_parser_nodes__TClassid.color;
+idtype22 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var19 = 1;
+var20 = 1;
 } else {
-if(cltype20 >= var_tclassidnode6->type->table_size) {
-var19 = 0;
+if(cltype21 >= var_tclassidnode6->type->table_size) {
+var20 = 0;
 } else {
-var19 = var_tclassidnode6->type->type_table[cltype20] == idtype21;
+var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5690);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5536);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist6;
+var_pexterncodeblocknode9 = var_nodearraylist7;
 /* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
-cltype23 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype24 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype24 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype25 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode9 == NULL) {
-var22 = 1;
+var23 = 1;
 } else {
-if(cltype23 >= var_pexterncodeblocknode9->type->table_size) {
-var22 = 0;
+if(cltype24 >= var_pexterncodeblocknode9->type->table_size) {
+var23 = 0;
 } else {
-var22 = var_pexterncodeblocknode9->type->type_table[cltype23] == idtype24;
+var23 = var_pexterncodeblocknode9->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5692);
-exit(1);
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5538);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist8;
+var_tkwendnode12 = var_nodearraylist9;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype26 = type_nullable_parser_nodes__TKwend.color;
-idtype27 = type_nullable_parser_nodes__TKwend.id;
+cltype27 = type_nullable_parser_nodes__TKwend.color;
+idtype28 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var25 = 1;
+var26 = 1;
 } else {
-if(cltype26 >= var_tkwendnode12->type->table_size) {
-var25 = 0;
+if(cltype27 >= var_tkwendnode12->type->table_size) {
+var26 = 0;
 } else {
-var25 = var_tkwendnode12->type->type_table[cltype26] == idtype27;
+var26 = var_tkwendnode12->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5694);
-exit(1);
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5540);
+show_backtrace(1);
 }
-var28 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var29 = NULL;
+var29 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var28, var_pdocnode2, var29, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var30, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var28:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var28);
-var_pclassdefnode1 = var28;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var29, var_pdocnode2, var30, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var31, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var29:AStdClassdef>*/;
+var_pclassdefnode1 = var29;
 var_node_list = var_pclassdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction105> */
-var32 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var31) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var32, var_node_list) /* push on <var_p:Parser>*/;
+var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction107> */
+var33 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var32) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var33, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction105#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction105__action(val* self, val* p0) {
-parser__ReduceAction105__action(self, p0);
+/* method parser#ReduceAction107#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction107__action(val* self, val* p0) {
+parser__ReduceAction107__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction106#action for (self: ReduceAction106, Parser) */
-void parser__ReduceAction106__action(val* self, val* p0) {
+/* method parser#ReduceAction108#action for (self: ReduceAction108, Parser) */
+void parser__ReduceAction108__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var13 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-val* var32 /* : AStdClassdef */;
-val* var33 /* : null */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
+val* var30 /* : AStdClassdef */;
+val* var31 /* : null */;
+val* var32 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var33 /* : Int */;
 long var34 /* : Int */;
-long var35 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode7 = var10;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode10 = var11;
+var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode11 = var12;
+var_listnode10 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode11 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var13 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5730);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype15 = type_nullable_parser_nodes__TKwredef.color;
-idtype16 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
 var14 = 1;
 } else {
-if(cltype15 >= var_tkwredefnode3->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var14 = 0;
 } else {
-var14 = var_tkwredefnode3->type->type_table[cltype15] == idtype16;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5732);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5577);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype18 = type_nullable_parser_nodes__AVisibility.color;
-idtype19 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var17 = 1;
+var15 = 1;
 } else {
-if(cltype18 >= var_pvisibilitynode4->type->table_size) {
-var17 = 0;
+if(cltype16 >= var_pvisibilitynode4->type->table_size) {
+var15 = 0;
 } else {
-var17 = var_pvisibilitynode4->type->type_table[cltype18] == idtype19;
+var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5734);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5579);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype21 = type_nullable_parser_nodes__AClasskind.color;
-idtype22 = type_nullable_parser_nodes__AClasskind.id;
+cltype19 = type_nullable_parser_nodes__AClasskind.color;
+idtype20 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var20 = 1;
+var18 = 1;
 } else {
-if(cltype21 >= var_pclasskindnode5->type->table_size) {
-var20 = 0;
+if(cltype19 >= var_pclasskindnode5->type->table_size) {
+var18 = 0;
 } else {
-var20 = var_pclasskindnode5->type->type_table[cltype21] == idtype22;
+var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5736);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5581);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype24 = type_nullable_parser_nodes__TClassid.color;
-idtype25 = type_nullable_parser_nodes__TClassid.id;
+cltype22 = type_nullable_parser_nodes__TClassid.color;
+idtype23 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var23 = 1;
-} else {
-if(cltype24 >= var_tclassidnode6->type->table_size) {
-var23 = 0;
+var21 = 1;
 } else {
-var23 = var_tclassidnode6->type->type_table[cltype24] == idtype25;
+if(cltype22 >= var_tclassidnode6->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5738);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5583);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist7;
+var_pexterncodeblocknode9 = var_nodearraylist8;
 /* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
-cltype27 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype28 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype25 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype26 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode9 == NULL) {
-var26 = 1;
+var24 = 1;
 } else {
-if(cltype27 >= var_pexterncodeblocknode9->type->table_size) {
-var26 = 0;
+if(cltype25 >= var_pexterncodeblocknode9->type->table_size) {
+var24 = 0;
 } else {
-var26 = var_pexterncodeblocknode9->type->type_table[cltype27] == idtype28;
+var24 = var_pexterncodeblocknode9->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5740);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5585);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist9;
+var_tkwendnode12 = var_nodearraylist10;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype30 = type_nullable_parser_nodes__TKwend.color;
-idtype31 = type_nullable_parser_nodes__TKwend.id;
+cltype28 = type_nullable_parser_nodes__TKwend.color;
+idtype29 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var29 = 1;
+var27 = 1;
 } else {
-if(cltype30 >= var_tkwendnode12->type->table_size) {
-var29 = 0;
+if(cltype28 >= var_tkwendnode12->type->table_size) {
+var27 = 0;
 } else {
-var29 = var_tkwendnode12->type->type_table[cltype30] == idtype31;
+var27 = var_tkwendnode12->type->type_table[cltype28] == idtype29;
 }
 }
-if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5742);
-exit(1);
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5587);
+show_backtrace(1);
 }
-var32 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var32, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var33, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var32:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var32);
-var_pclassdefnode1 = var32;
+var30 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var31 = NULL;
+var32 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var30, var_pdocnode2, var31, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var32, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var30:AStdClassdef>*/;
+var_pclassdefnode1 = var30;
 var_node_list = var_pclassdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction106> */
-var35 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var34) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var35, var_node_list) /* push on <var_p:Parser>*/;
+var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction108> */
+var34 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var33) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var34, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction106#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction106__action(val* self, val* p0) {
-parser__ReduceAction106__action(self, p0);
+/* method parser#ReduceAction108#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction108__action(val* self, val* p0) {
+parser__ReduceAction108__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction107#action for (self: ReduceAction107, Parser) */
-void parser__ReduceAction107__action(val* self, val* p0) {
+/* method parser#ReduceAction110#action for (self: ReduceAction110, Parser) */
+void parser__ReduceAction110__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var13 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
 val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AStdClassdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AStdClassdef */;
+val* var34 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var32 /* : Int */;
-long var33 /* : Int */;
+long var35 /* : Int */;
+long var36 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode7 = var10;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode10 = var11;
+var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode11 = var12;
+var_listnode10 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode11 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var13 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
+var14 = 0;
 } else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5778);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5624);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var15 = 1;
+} else {
+if(cltype16 >= var_tkwredefnode3->type->table_size) {
+var15 = 0;
+} else {
+var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+}
+}
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5626);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var14 = 1;
+var18 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
-var14 = 0;
+if(cltype19 >= var_pvisibilitynode4->type->table_size) {
+var18 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5780);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5628);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype18 = type_nullable_parser_nodes__AClasskind.color;
-idtype19 = type_nullable_parser_nodes__AClasskind.id;
+cltype22 = type_nullable_parser_nodes__AClasskind.color;
+idtype23 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var17 = 1;
+var21 = 1;
 } else {
-if(cltype18 >= var_pclasskindnode5->type->table_size) {
-var17 = 0;
+if(cltype22 >= var_pclasskindnode5->type->table_size) {
+var21 = 0;
 } else {
-var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
+var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5782);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5630);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype21 = type_nullable_parser_nodes__TClassid.color;
-idtype22 = type_nullable_parser_nodes__TClassid.id;
+cltype25 = type_nullable_parser_nodes__TClassid.color;
+idtype26 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var20 = 1;
+var24 = 1;
 } else {
-if(cltype21 >= var_tclassidnode6->type->table_size) {
-var20 = 0;
+if(cltype25 >= var_tclassidnode6->type->table_size) {
+var24 = 0;
 } else {
-var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
+var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5784);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5632);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist7;
+var_pexterncodeblocknode9 = var_nodearraylist8;
 /* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
-cltype24 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype25 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype28 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype29 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode9 == NULL) {
-var23 = 1;
+var27 = 1;
 } else {
-if(cltype24 >= var_pexterncodeblocknode9->type->table_size) {
-var23 = 0;
+if(cltype28 >= var_pexterncodeblocknode9->type->table_size) {
+var27 = 0;
 } else {
-var23 = var_pexterncodeblocknode9->type->type_table[cltype24] == idtype25;
+var27 = var_pexterncodeblocknode9->type->type_table[cltype28] == idtype29;
 }
 }
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5786);
-exit(1);
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5634);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist9;
+var_tkwendnode12 = var_nodearraylist10;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype27 = type_nullable_parser_nodes__TKwend.color;
-idtype28 = type_nullable_parser_nodes__TKwend.id;
+cltype31 = type_nullable_parser_nodes__TKwend.color;
+idtype32 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var26 = 1;
+var30 = 1;
 } else {
-if(cltype27 >= var_tkwendnode12->type->table_size) {
-var26 = 0;
+if(cltype31 >= var_tkwendnode12->type->table_size) {
+var30 = 0;
 } else {
-var26 = var_tkwendnode12->type->type_table[cltype27] == idtype28;
+var30 = var_tkwendnode12->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5788);
-exit(1);
+if (!var30) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5636);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var30 = NULL;
-var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var29, var_pdocnode2, var30, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var31, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var29:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var29);
-var_pclassdefnode1 = var29;
+var33 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var34 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var33, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var34, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var33:AStdClassdef>*/;
+var_pclassdefnode1 = var33;
 var_node_list = var_pclassdefnode1;
-var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction107> */
-var33 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var32) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var33, var_node_list) /* push on <var_p:Parser>*/;
+var35 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction110> */
+var36 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var35) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var36, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction107#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction107__action(val* self, val* p0) {
-parser__ReduceAction107__action(self, p0);
+/* method parser#ReduceAction110#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction110__action(val* self, val* p0) {
+parser__ReduceAction110__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction108#action for (self: ReduceAction108, Parser) */
-void parser__ReduceAction108__action(val* self, val* p0) {
+/* method parser#ReduceAction111#action for (self: ReduceAction111, Parser) */
+void parser__ReduceAction111__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode10 /* var listnode10: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
 val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
 val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var30 /* : AStdClassdef */;
-val* var31 /* : null */;
-val* var32 /* : null */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
+val* var34 /* : AStdClassdef */;
+val* var35 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var33 /* : Int */;
-long var34 /* : Int */;
+long var36 /* : Int */;
+long var37 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode7 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode10 = var12;
+var_listnode7 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode11 = var13;
+var_listnode10 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode11 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
+var15 = 0;
 } else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5825);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5674);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype17 = type_nullable_parser_nodes__TKwredef.color;
+idtype18 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var16 = 1;
+} else {
+if(cltype17 >= var_tkwredefnode3->type->table_size) {
+var16 = 0;
+} else {
+var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+}
+}
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5676);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
+cltype20 = type_nullable_parser_nodes__AVisibility.color;
+idtype21 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var15 = 1;
+var19 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode4->type->table_size) {
-var15 = 0;
+if(cltype20 >= var_pvisibilitynode4->type->table_size) {
+var19 = 0;
 } else {
-var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
+var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5827);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5678);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype19 = type_nullable_parser_nodes__AClasskind.color;
-idtype20 = type_nullable_parser_nodes__AClasskind.id;
+cltype23 = type_nullable_parser_nodes__AClasskind.color;
+idtype24 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var18 = 1;
+var22 = 1;
 } else {
-if(cltype19 >= var_pclasskindnode5->type->table_size) {
-var18 = 0;
+if(cltype23 >= var_pclasskindnode5->type->table_size) {
+var22 = 0;
 } else {
-var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
+var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5829);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5680);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype22 = type_nullable_parser_nodes__TClassid.color;
-idtype23 = type_nullable_parser_nodes__TClassid.id;
+cltype26 = type_nullable_parser_nodes__TClassid.color;
+idtype27 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var21 = 1;
+var25 = 1;
 } else {
-if(cltype22 >= var_tclassidnode6->type->table_size) {
-var21 = 0;
+if(cltype26 >= var_tclassidnode6->type->table_size) {
+var25 = 0;
 } else {
-var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
+var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5831);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5682);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist8;
+var_pexterncodeblocknode9 = var_nodearraylist9;
 /* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
-cltype25 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype26 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype29 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype30 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode9 == NULL) {
-var24 = 1;
+var28 = 1;
 } else {
-if(cltype25 >= var_pexterncodeblocknode9->type->table_size) {
-var24 = 0;
+if(cltype29 >= var_pexterncodeblocknode9->type->table_size) {
+var28 = 0;
 } else {
-var24 = var_pexterncodeblocknode9->type->type_table[cltype25] == idtype26;
+var28 = var_pexterncodeblocknode9->type->type_table[cltype29] == idtype30;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5833);
-exit(1);
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5684);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist10;
+var_tkwendnode12 = var_nodearraylist11;
 /* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype28 = type_nullable_parser_nodes__TKwend.color;
-idtype29 = type_nullable_parser_nodes__TKwend.id;
+cltype32 = type_nullable_parser_nodes__TKwend.color;
+idtype33 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode12 == NULL) {
-var27 = 1;
+var31 = 1;
 } else {
-if(cltype28 >= var_tkwendnode12->type->table_size) {
-var27 = 0;
+if(cltype32 >= var_tkwendnode12->type->table_size) {
+var31 = 0;
 } else {
-var27 = var_tkwendnode12->type->type_table[cltype28] == idtype29;
+var31 = var_tkwendnode12->type->type_table[cltype32] == idtype33;
 }
 }
-if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5835);
-exit(1);
+if (!var31) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5686);
+show_backtrace(1);
 }
-var30 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var31 = NULL;
-var32 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var30, var_pdocnode2, var31, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var32, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var30:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var30);
-var_pclassdefnode1 = var30;
+var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var35 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var35, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var34:AStdClassdef>*/;
+var_pclassdefnode1 = var34;
 var_node_list = var_pclassdefnode1;
-var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction108> */
-var34 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var33) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var34, var_node_list) /* push on <var_p:Parser>*/;
+var36 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction111> */
+var37 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var36) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var37, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction108#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction108__action(val* self, val* p0) {
-parser__ReduceAction108__action(self, p0);
+/* method parser#ReduceAction111#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction111__action(val* self, val* p0) {
+parser__ReduceAction111__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction110#action for (self: ReduceAction110, Parser) */
-void parser__ReduceAction110__action(val* self, val* p0) {
+/* method parser#ReduceAction113#action for (self: ReduceAction113, Parser) */
+void parser__ReduceAction113__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var2 /* : nullable Object */;
 val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var3 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var10 /* : Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
-val* var12 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
-val* var13 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var12 /* : Array[Object] */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_listnode7 /* var listnode7: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var26 /* : Array[Object] */;
+val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
 short int var27 /* : Bool */;
 int cltype28;
 int idtype29;
-val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
+val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
 short int var30 /* : Bool */;
 int cltype31;
 int idtype32;
 val* var33 /* : AStdClassdef */;
 val* var34 /* : null */;
+val* var35 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var35 /* : Int */;
 long var36 /* : Int */;
+long var37 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist3 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist2 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
-var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
+var_nodearraylist1 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode8 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode7 = var11;
+var_listnode11 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode10 = var12;
-var13 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode11 = var13;
+var_listnode12 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
+var13 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5872);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
-var15 = 1;
-} else {
-if(cltype16 >= var_tkwredefnode3->type->table_size) {
-var15 = 0;
+var13 = 0;
 } else {
-var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5874);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5722);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var18 = 1;
+var14 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode4->type->table_size) {
-var18 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5876);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5724);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype22 = type_nullable_parser_nodes__AClasskind.color;
-idtype23 = type_nullable_parser_nodes__AClasskind.id;
+cltype18 = type_nullable_parser_nodes__AClasskind.color;
+idtype19 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var21 = 1;
+var17 = 1;
 } else {
-if(cltype22 >= var_pclasskindnode5->type->table_size) {
-var21 = 0;
+if(cltype18 >= var_pclasskindnode5->type->table_size) {
+var17 = 0;
 } else {
-var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
+var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5878);
-exit(1);
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5726);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist5;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype25 = type_nullable_parser_nodes__TClassid.color;
-idtype26 = type_nullable_parser_nodes__TClassid.id;
+cltype21 = type_nullable_parser_nodes__TClassid.color;
+idtype22 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var24 = 1;
+var20 = 1;
 } else {
-if(cltype25 >= var_tclassidnode6->type->table_size) {
-var24 = 0;
+if(cltype21 >= var_tclassidnode6->type->table_size) {
+var20 = 0;
 } else {
-var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
+var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5880);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5728);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist8;
-/* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
+var_listnode7 = var_nodearraylist6;
+/* <var_listnode7:nullable Object> isa Array[Object] */
+cltype24 = type_array__Arraykernel__Object.color;
+idtype25 = type_array__Arraykernel__Object.id;
+if(var_listnode7 == NULL) {
+var23 = 0;
+} else {
+if(cltype24 >= var_listnode7->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_listnode7->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5730);
+show_backtrace(1);
+}
+var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction113>*/;
+var_listnode8 = var26;
+var_pexterncodeblocknode10 = var_nodearraylist7;
+/* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
 cltype28 = type_nullable_parser_nodes__AExternCodeBlock.color;
 idtype29 = type_nullable_parser_nodes__AExternCodeBlock.id;
-if(var_pexterncodeblocknode9 == NULL) {
+if(var_pexterncodeblocknode10 == NULL) {
 var27 = 1;
 } else {
-if(cltype28 >= var_pexterncodeblocknode9->type->table_size) {
+if(cltype28 >= var_pexterncodeblocknode10->type->table_size) {
 var27 = 0;
 } else {
-var27 = var_pexterncodeblocknode9->type->type_table[cltype28] == idtype29;
+var27 = var_pexterncodeblocknode10->type->type_table[cltype28] == idtype29;
 }
 }
 if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5882);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5733);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist10;
-/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
+var_tkwendnode13 = var_nodearraylist9;
+/* <var_tkwendnode13:nullable Object> isa nullable TKwend */
 cltype31 = type_nullable_parser_nodes__TKwend.color;
 idtype32 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode12 == NULL) {
+if(var_tkwendnode13 == NULL) {
 var30 = 1;
 } else {
-if(cltype31 >= var_tkwendnode12->type->table_size) {
+if(cltype31 >= var_tkwendnode13->type->table_size) {
 var30 = 0;
 } else {
-var30 = var_tkwendnode12->type->type_table[cltype31] == idtype32;
+var30 = var_tkwendnode13->type->type_table[cltype31] == idtype32;
 }
 }
 if (!var30) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5884);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5735);
+show_backtrace(1);
 }
 var33 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var34 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var33, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var34, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var33:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var33);
+var35 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var33, var_pdocnode2, var34, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var35, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var33:AStdClassdef>*/;
 var_pclassdefnode1 = var33;
 var_node_list = var_pclassdefnode1;
-var35 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction110> */
-var36 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var35) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var36, var_node_list) /* push on <var_p:Parser>*/;
+var36 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction113> */
+var37 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var36) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var37, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction110#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction110__action(val* self, val* p0) {
-parser__ReduceAction110__action(self, p0);
+/* method parser#ReduceAction113#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction113__action(val* self, val* p0) {
+parser__ReduceAction113__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction111#action for (self: ReduceAction111, Parser) */
-void parser__ReduceAction111__action(val* self, val* p0) {
+/* method parser#ReduceAction114#action for (self: ReduceAction114, Parser) */
+void parser__ReduceAction114__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
-val* var2 /* : nullable Object */;
 val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var3 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var12 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
-val* var13 /* : Array[Object] */;
-val* var_listnode10 /* var listnode10: Array[Object] */;
-val* var14 /* : Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
+val* var12 /* : Array[Object] */;
 val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var13 /* : Array[Object] */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var_pexterncodeblocknode9 /* var pexterncodeblocknode9: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var_tkwendnode12 /* var tkwendnode12: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var_listnode7 /* var listnode7: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
+val* var30 /* : Array[Object] */;
+val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
 short int var31 /* : Bool */;
 int cltype32;
 int idtype33;
-val* var34 /* : AStdClassdef */;
-val* var35 /* : null */;
+val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+val* var37 /* : AStdClassdef */;
+val* var38 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var36 /* : Int */;
-long var37 /* : Int */;
+long var39 /* : Int */;
+long var40 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
+var_nodearraylist2 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
-var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
+var_nodearraylist1 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode8 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode7 = var12;
+var_listnode11 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode10 = var13;
-var14 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode11 = var14;
+var_listnode12 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
+var14 = 0;
 } else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5922);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5772);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype17 = type_nullable_parser_nodes__TKwredef.color;
-idtype18 = type_nullable_parser_nodes__TKwredef.id;
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var16 = 1;
+var15 = 1;
 } else {
-if(cltype17 >= var_tkwredefnode3->type->table_size) {
-var16 = 0;
+if(cltype16 >= var_tkwredefnode3->type->table_size) {
+var15 = 0;
 } else {
-var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5924);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5774);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype20 = type_nullable_parser_nodes__AVisibility.color;
-idtype21 = type_nullable_parser_nodes__AVisibility.id;
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var19 = 1;
+var18 = 1;
 } else {
-if(cltype20 >= var_pvisibilitynode4->type->table_size) {
-var19 = 0;
+if(cltype19 >= var_pvisibilitynode4->type->table_size) {
+var18 = 0;
 } else {
-var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
+var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5926);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5776);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype23 = type_nullable_parser_nodes__AClasskind.color;
-idtype24 = type_nullable_parser_nodes__AClasskind.id;
+cltype22 = type_nullable_parser_nodes__AClasskind.color;
+idtype23 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var22 = 1;
+var21 = 1;
 } else {
-if(cltype23 >= var_pclasskindnode5->type->table_size) {
-var22 = 0;
+if(cltype22 >= var_pclasskindnode5->type->table_size) {
+var21 = 0;
 } else {
-var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
+var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5928);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5778);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist8;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype26 = type_nullable_parser_nodes__TClassid.color;
-idtype27 = type_nullable_parser_nodes__TClassid.id;
+cltype25 = type_nullable_parser_nodes__TClassid.color;
+idtype26 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var25 = 1;
+var24 = 1;
 } else {
-if(cltype26 >= var_tclassidnode6->type->table_size) {
-var25 = 0;
+if(cltype25 >= var_tclassidnode6->type->table_size) {
+var24 = 0;
 } else {
-var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
+var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5930);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5780);
+show_backtrace(1);
 }
-var_pexterncodeblocknode9 = var_nodearraylist9;
-/* <var_pexterncodeblocknode9:nullable Object> isa nullable AExternCodeBlock */
-cltype29 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype30 = type_nullable_parser_nodes__AExternCodeBlock.id;
-if(var_pexterncodeblocknode9 == NULL) {
-var28 = 1;
+var_listnode7 = var_nodearraylist7;
+/* <var_listnode7:nullable Object> isa Array[Object] */
+cltype28 = type_array__Arraykernel__Object.color;
+idtype29 = type_array__Arraykernel__Object.id;
+if(var_listnode7 == NULL) {
+var27 = 0;
 } else {
-if(cltype29 >= var_pexterncodeblocknode9->type->table_size) {
-var28 = 0;
+if(cltype28 >= var_listnode7->type->table_size) {
+var27 = 0;
 } else {
-var28 = var_pexterncodeblocknode9->type->type_table[cltype29] == idtype30;
+var27 = var_listnode7->type->type_table[cltype28] == idtype29;
 }
 }
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5932);
-exit(1);
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5782);
+show_backtrace(1);
 }
-var_tkwendnode12 = var_nodearraylist11;
-/* <var_tkwendnode12:nullable Object> isa nullable TKwend */
-cltype32 = type_nullable_parser_nodes__TKwend.color;
-idtype33 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode12 == NULL) {
+var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction114>*/;
+var_listnode8 = var30;
+var_pexterncodeblocknode10 = var_nodearraylist8;
+/* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
+cltype32 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype33 = type_nullable_parser_nodes__AExternCodeBlock.id;
+if(var_pexterncodeblocknode10 == NULL) {
 var31 = 1;
 } else {
-if(cltype32 >= var_tkwendnode12->type->table_size) {
+if(cltype32 >= var_pexterncodeblocknode10->type->table_size) {
 var31 = 0;
 } else {
-var31 = var_tkwendnode12->type->type_table[cltype32] == idtype33;
+var31 = var_pexterncodeblocknode10->type->type_table[cltype32] == idtype33;
 }
 }
 if (!var31) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5934);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5785);
+show_backtrace(1);
 }
-var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var35 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var35, var_pexterncodeblocknode9, var_listnode10, var_listnode11, var_tkwendnode12) /* init_astdclassdef on <var34:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var34);
-var_pclassdefnode1 = var34;
+var_tkwendnode13 = var_nodearraylist10;
+/* <var_tkwendnode13:nullable Object> isa nullable TKwend */
+cltype35 = type_nullable_parser_nodes__TKwend.color;
+idtype36 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode13 == NULL) {
+var34 = 1;
+} else {
+if(cltype35 >= var_tkwendnode13->type->table_size) {
+var34 = 0;
+} else {
+var34 = var_tkwendnode13->type->type_table[cltype35] == idtype36;
+}
+}
+if (!var34) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5787);
+show_backtrace(1);
+}
+var37 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var38 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var37, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var38, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var37:AStdClassdef>*/;
+var_pclassdefnode1 = var37;
 var_node_list = var_pclassdefnode1;
-var36 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction111> */
-var37 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var36) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var37, var_node_list) /* push on <var_p:Parser>*/;
+var39 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction114> */
+var40 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var39) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var40, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction111#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction111__action(val* self, val* p0) {
-parser__ReduceAction111__action(self, p0);
+/* method parser#ReduceAction114#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction114__action(val* self, val* p0) {
+parser__ReduceAction114__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction113#action for (self: ReduceAction113, Parser) */
-void parser__ReduceAction113__action(val* self, val* p0) {
+/* method parser#ReduceAction115#action for (self: ReduceAction115, Parser) */
+void parser__ReduceAction115__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var13 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
-int cltype;
-int idtype;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
 short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+int cltype;
+int idtype;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var26 /* : Array[Object] */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : Array[Object] */;
 val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
 val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AStdClassdef */;
-val* var34 /* : null */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
+val* var34 /* : AStdClassdef */;
 val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var36 /* : Int */;
 long var37 /* : Int */;
+long var38 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode8 = var10;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode11 = var11;
+var_listnode8 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode12 = var12;
+var_listnode11 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode12 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var13 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
+var14 = 0;
 } else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5970);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5824);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
-var14 = 0;
+if(cltype16 >= var_pvisibilitynode4->type->table_size) {
+var15 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5972);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5826);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype18 = type_nullable_parser_nodes__AClasskind.color;
-idtype19 = type_nullable_parser_nodes__AClasskind.id;
+cltype19 = type_nullable_parser_nodes__AClasskind.color;
+idtype20 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var17 = 1;
+var18 = 1;
 } else {
-if(cltype18 >= var_pclasskindnode5->type->table_size) {
-var17 = 0;
+if(cltype19 >= var_pclasskindnode5->type->table_size) {
+var18 = 0;
 } else {
-var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
+var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5974);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5828);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist5;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype21 = type_nullable_parser_nodes__TClassid.color;
-idtype22 = type_nullable_parser_nodes__TClassid.id;
+cltype22 = type_nullable_parser_nodes__TClassid.color;
+idtype23 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var20 = 1;
+var21 = 1;
 } else {
-if(cltype21 >= var_tclassidnode6->type->table_size) {
-var20 = 0;
+if(cltype22 >= var_tclassidnode6->type->table_size) {
+var21 = 0;
 } else {
-var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
+var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5976);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5830);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist6;
+var_listnode7 = var_nodearraylist7;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype24 = type_array__Arraykernel__Object.color;
-idtype25 = type_array__Arraykernel__Object.id;
+cltype25 = type_array__Arraykernel__Object.color;
+idtype26 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var23 = 0;
+var24 = 0;
 } else {
-if(cltype24 >= var_listnode7->type->table_size) {
-var23 = 0;
+if(cltype25 >= var_listnode7->type->table_size) {
+var24 = 0;
 } else {
-var23 = var_listnode7->type->type_table[cltype24] == idtype25;
+var24 = var_listnode7->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5978);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5832);
+show_backtrace(1);
 }
-var26 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction113>*/;
-var_listnode8 = var26;
-var_pexterncodeblocknode10 = var_nodearraylist7;
+var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction115>*/;
+var_listnode8 = var27;
+var_pexterncodeblocknode10 = var_nodearraylist8;
 /* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
-cltype28 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype29 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype29 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype30 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode10 == NULL) {
-var27 = 1;
+var28 = 1;
 } else {
-if(cltype28 >= var_pexterncodeblocknode10->type->table_size) {
-var27 = 0;
+if(cltype29 >= var_pexterncodeblocknode10->type->table_size) {
+var28 = 0;
 } else {
-var27 = var_pexterncodeblocknode10->type->type_table[cltype28] == idtype29;
+var28 = var_pexterncodeblocknode10->type->type_table[cltype29] == idtype30;
 }
 }
-if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5981);
-exit(1);
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5835);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist9;
+var_tkwendnode13 = var_nodearraylist10;
 /* <var_tkwendnode13:nullable Object> isa nullable TKwend */
-cltype31 = type_nullable_parser_nodes__TKwend.color;
-idtype32 = type_nullable_parser_nodes__TKwend.id;
+cltype32 = type_nullable_parser_nodes__TKwend.color;
+idtype33 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode13 == NULL) {
-var30 = 1;
+var31 = 1;
 } else {
-if(cltype31 >= var_tkwendnode13->type->table_size) {
-var30 = 0;
+if(cltype32 >= var_tkwendnode13->type->table_size) {
+var31 = 0;
 } else {
-var30 = var_tkwendnode13->type->type_table[cltype31] == idtype32;
+var31 = var_tkwendnode13->type->type_table[cltype32] == idtype33;
 }
 }
-if (!var30) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 5983);
-exit(1);
+if (!var31) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5837);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var34 = NULL;
+var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var35 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var33, var_pdocnode2, var34, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var35, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var33:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var33);
-var_pclassdefnode1 = var33;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var35, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var36, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var34:AStdClassdef>*/;
+var_pclassdefnode1 = var34;
 var_node_list = var_pclassdefnode1;
-var36 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction113> */
-var37 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var36) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var37, var_node_list) /* push on <var_p:Parser>*/;
+var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction115> */
+var38 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var37) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var38, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction113#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction113__action(val* self, val* p0) {
-parser__ReduceAction113__action(self, p0);
+/* method parser#ReduceAction115#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction115__action(val* self, val* p0) {
+parser__ReduceAction115__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction114#action for (self: ReduceAction114, Parser) */
-void parser__ReduceAction114__action(val* self, val* p0) {
+/* method parser#ReduceAction116#action for (self: ReduceAction116, Parser) */
+void parser__ReduceAction116__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var30 /* : Array[Object] */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : Array[Object] */;
 val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
 val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-val* var37 /* : AStdClassdef */;
-val* var38 /* : null */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
+val* var35 /* : AStdClassdef */;
+val* var36 /* : null */;
+val* var37 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var38 /* : Int */;
 long var39 /* : Int */;
-long var40 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode8 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode11 = var12;
+var_listnode8 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode12 = var13;
+var_listnode11 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode12 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6020);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode3->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6022);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5875);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
+cltype17 = type_nullable_parser_nodes__AVisibility.color;
+idtype18 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var18 = 1;
+var16 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode4->type->table_size) {
-var18 = 0;
+if(cltype17 >= var_pvisibilitynode4->type->table_size) {
+var16 = 0;
 } else {
-var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
+var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6024);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5877);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype22 = type_nullable_parser_nodes__AClasskind.color;
-idtype23 = type_nullable_parser_nodes__AClasskind.id;
+cltype20 = type_nullable_parser_nodes__AClasskind.color;
+idtype21 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var21 = 1;
+var19 = 1;
 } else {
-if(cltype22 >= var_pclasskindnode5->type->table_size) {
-var21 = 0;
+if(cltype20 >= var_pclasskindnode5->type->table_size) {
+var19 = 0;
 } else {
-var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
+var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6026);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5879);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype25 = type_nullable_parser_nodes__TClassid.color;
-idtype26 = type_nullable_parser_nodes__TClassid.id;
+cltype23 = type_nullable_parser_nodes__TClassid.color;
+idtype24 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var24 = 1;
+var22 = 1;
 } else {
-if(cltype25 >= var_tclassidnode6->type->table_size) {
-var24 = 0;
+if(cltype23 >= var_tclassidnode6->type->table_size) {
+var22 = 0;
 } else {
-var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
+var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6028);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5881);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist7;
+var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype28 = type_array__Arraykernel__Object.color;
-idtype29 = type_array__Arraykernel__Object.id;
+cltype26 = type_array__Arraykernel__Object.color;
+idtype27 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var27 = 0;
+var25 = 0;
 } else {
-if(cltype28 >= var_listnode7->type->table_size) {
-var27 = 0;
+if(cltype26 >= var_listnode7->type->table_size) {
+var25 = 0;
 } else {
-var27 = var_listnode7->type->type_table[cltype28] == idtype29;
+var25 = var_listnode7->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var27) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6030);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5883);
+show_backtrace(1);
 }
-var30 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction114>*/;
-var_listnode8 = var30;
-var_pexterncodeblocknode10 = var_nodearraylist8;
+var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction116>*/;
+var_listnode8 = var28;
+var_pexterncodeblocknode10 = var_nodearraylist9;
 /* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
-cltype32 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype33 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype30 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype31 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode10 == NULL) {
-var31 = 1;
+var29 = 1;
 } else {
-if(cltype32 >= var_pexterncodeblocknode10->type->table_size) {
-var31 = 0;
+if(cltype30 >= var_pexterncodeblocknode10->type->table_size) {
+var29 = 0;
 } else {
-var31 = var_pexterncodeblocknode10->type->type_table[cltype32] == idtype33;
+var29 = var_pexterncodeblocknode10->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var31) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6033);
-exit(1);
+if (!var29) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5886);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist10;
+var_tkwendnode13 = var_nodearraylist11;
 /* <var_tkwendnode13:nullable Object> isa nullable TKwend */
-cltype35 = type_nullable_parser_nodes__TKwend.color;
-idtype36 = type_nullable_parser_nodes__TKwend.id;
+cltype33 = type_nullable_parser_nodes__TKwend.color;
+idtype34 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode13 == NULL) {
-var34 = 1;
+var32 = 1;
 } else {
-if(cltype35 >= var_tkwendnode13->type->table_size) {
-var34 = 0;
+if(cltype33 >= var_tkwendnode13->type->table_size) {
+var32 = 0;
 } else {
-var34 = var_tkwendnode13->type->type_table[cltype35] == idtype36;
+var32 = var_tkwendnode13->type->type_table[cltype33] == idtype34;
 }
 }
-if (!var34) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6035);
-exit(1);
+if (!var32) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5888);
+show_backtrace(1);
 }
-var37 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var38 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var37, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var38, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var37:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var37);
-var_pclassdefnode1 = var37;
+var35 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var36 = NULL;
+var37 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var35->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var35, var_pdocnode2, var36, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var37, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var35:AStdClassdef>*/;
+var_pclassdefnode1 = var35;
 var_node_list = var_pclassdefnode1;
-var39 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction114> */
-var40 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var39) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var40, var_node_list) /* push on <var_p:Parser>*/;
+var38 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction116> */
+var39 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var38) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var39, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction114#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction114__action(val* self, val* p0) {
-parser__ReduceAction114__action(self, p0);
+/* method parser#ReduceAction116#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction116__action(val* self, val* p0) {
+parser__ReduceAction116__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction115#action for (self: ReduceAction115, Parser) */
-void parser__ReduceAction115__action(val* self, val* p0) {
+/* method parser#ReduceAction118#action for (self: ReduceAction118, Parser) */
+void parser__ReduceAction118__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : Array[Object] */;
-val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
 short int var28 /* : Bool */;
 int cltype29;
 int idtype30;
+val* var31 /* : Array[Object] */;
+val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
+short int var32 /* : Bool */;
+int cltype33;
+int idtype34;
 val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-val* var34 /* : AStdClassdef */;
-val* var35 /* : null */;
-val* var36 /* : null */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+val* var38 /* : AStdClassdef */;
+val* var39 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var37 /* : Int */;
-long var38 /* : Int */;
+long var40 /* : Int */;
+long var41 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode8 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode11 = var12;
+var_listnode8 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode12 = var13;
+var_listnode11 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode12 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
+var15 = 0;
 } else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6072);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5926);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype17 = type_nullable_parser_nodes__TKwredef.color;
+idtype18 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var16 = 1;
+} else {
+if(cltype17 >= var_tkwredefnode3->type->table_size) {
+var16 = 0;
+} else {
+var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+}
+}
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5928);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
+cltype20 = type_nullable_parser_nodes__AVisibility.color;
+idtype21 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var15 = 1;
+var19 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode4->type->table_size) {
-var15 = 0;
+if(cltype20 >= var_pvisibilitynode4->type->table_size) {
+var19 = 0;
 } else {
-var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
+var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6074);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5930);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype19 = type_nullable_parser_nodes__AClasskind.color;
-idtype20 = type_nullable_parser_nodes__AClasskind.id;
+cltype23 = type_nullable_parser_nodes__AClasskind.color;
+idtype24 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var18 = 1;
+var22 = 1;
 } else {
-if(cltype19 >= var_pclasskindnode5->type->table_size) {
-var18 = 0;
+if(cltype23 >= var_pclasskindnode5->type->table_size) {
+var22 = 0;
 } else {
-var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
+var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6076);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5932);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype22 = type_nullable_parser_nodes__TClassid.color;
-idtype23 = type_nullable_parser_nodes__TClassid.id;
+cltype26 = type_nullable_parser_nodes__TClassid.color;
+idtype27 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var21 = 1;
+var25 = 1;
 } else {
-if(cltype22 >= var_tclassidnode6->type->table_size) {
-var21 = 0;
+if(cltype26 >= var_tclassidnode6->type->table_size) {
+var25 = 0;
 } else {
-var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
+var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6078);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5934);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist7;
+var_listnode7 = var_nodearraylist8;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype25 = type_array__Arraykernel__Object.color;
-idtype26 = type_array__Arraykernel__Object.id;
+cltype29 = type_array__Arraykernel__Object.color;
+idtype30 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var24 = 0;
+var28 = 0;
 } else {
-if(cltype25 >= var_listnode7->type->table_size) {
-var24 = 0;
+if(cltype29 >= var_listnode7->type->table_size) {
+var28 = 0;
 } else {
-var24 = var_listnode7->type->type_table[cltype25] == idtype26;
+var28 = var_listnode7->type->type_table[cltype29] == idtype30;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6080);
-exit(1);
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5936);
+show_backtrace(1);
 }
-var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction115>*/;
-var_listnode8 = var27;
-var_pexterncodeblocknode10 = var_nodearraylist8;
+var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction118>*/;
+var_listnode8 = var31;
+var_pexterncodeblocknode10 = var_nodearraylist9;
 /* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
-cltype29 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype30 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype33 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype34 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode10 == NULL) {
-var28 = 1;
+var32 = 1;
 } else {
-if(cltype29 >= var_pexterncodeblocknode10->type->table_size) {
-var28 = 0;
+if(cltype33 >= var_pexterncodeblocknode10->type->table_size) {
+var32 = 0;
 } else {
-var28 = var_pexterncodeblocknode10->type->type_table[cltype29] == idtype30;
+var32 = var_pexterncodeblocknode10->type->type_table[cltype33] == idtype34;
 }
 }
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6083);
-exit(1);
+if (!var32) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5939);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist10;
+var_tkwendnode13 = var_nodearraylist11;
 /* <var_tkwendnode13:nullable Object> isa nullable TKwend */
-cltype32 = type_nullable_parser_nodes__TKwend.color;
-idtype33 = type_nullable_parser_nodes__TKwend.id;
+cltype36 = type_nullable_parser_nodes__TKwend.color;
+idtype37 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode13 == NULL) {
-var31 = 1;
+var35 = 1;
 } else {
-if(cltype32 >= var_tkwendnode13->type->table_size) {
-var31 = 0;
+if(cltype36 >= var_tkwendnode13->type->table_size) {
+var35 = 0;
 } else {
-var31 = var_tkwendnode13->type->type_table[cltype32] == idtype33;
+var35 = var_tkwendnode13->type->type_table[cltype36] == idtype37;
 }
 }
-if (!var31) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6085);
-exit(1);
+if (!var35) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5941);
+show_backtrace(1);
 }
-var34 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var34, var_pdocnode2, var35, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var36, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var34:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var34);
-var_pclassdefnode1 = var34;
+var38 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var39 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var38, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var39, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var38:AStdClassdef>*/;
+var_pclassdefnode1 = var38;
 var_node_list = var_pclassdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction115> */
-var38 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var37) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var38, var_node_list) /* push on <var_p:Parser>*/;
+var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction118> */
+var41 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var40) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var41, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction115#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction115__action(val* self, val* p0) {
-parser__ReduceAction115__action(self, p0);
+/* method parser#ReduceAction118#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction118__action(val* self, val* p0) {
+parser__ReduceAction118__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction116#action for (self: ReduceAction116, Parser) */
-void parser__ReduceAction116__action(val* self, val* p0) {
+/* method parser#ReduceAction119#action for (self: ReduceAction119, Parser) */
+void parser__ReduceAction119__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
+val* var_nodearraylist12 /* var nodearraylist12: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var10 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var11 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var12 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var12 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var13 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var_listnode8 /* var listnode8: Array[Object] */;
 val* var14 /* : Array[Object] */;
+val* var_listnode11 /* var listnode11: Array[Object] */;
+val* var15 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var16 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
 val* var_listnode7 /* var listnode7: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : Array[Object] */;
-val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
 short int var29 /* : Bool */;
 int cltype30;
 int idtype31;
+val* var32 /* : Array[Object] */;
+val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
 val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
-short int var32 /* : Bool */;
-int cltype33;
-int idtype34;
-val* var35 /* : AStdClassdef */;
-val* var36 /* : null */;
-val* var37 /* : null */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+val* var39 /* : AStdClassdef */;
+val* var40 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var38 /* : Int */;
-long var39 /* : Int */;
+long var41 /* : Int */;
+long var42 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist12 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist11 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist10 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist9 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist8 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist7 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist6 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
+var_nodearraylist5 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
+var_nodearraylist4 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
+var_nodearraylist3 = var10;
 var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
-var12 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode8 = var12;
+var_nodearraylist2 = var11;
+var12 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode11 = var13;
+var_listnode8 = var13;
 var14 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode12 = var14;
+var_listnode11 = var14;
+var15 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var15->class->vft[COLOR_array__Array__init]))(var15) /* init on <var15:Array[Object]>*/;
+var_listnode12 = var15;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var16 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
+var16 = 0;
 } else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
+var16 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6123);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5980);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype18 = type_nullable_parser_nodes__TKwredef.color;
+idtype19 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_tkwredefnode3->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_tkwredefnode3->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5982);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype17 = type_nullable_parser_nodes__AVisibility.color;
-idtype18 = type_nullable_parser_nodes__AVisibility.id;
+cltype21 = type_nullable_parser_nodes__AVisibility.color;
+idtype22 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var16 = 1;
+var20 = 1;
 } else {
-if(cltype17 >= var_pvisibilitynode4->type->table_size) {
-var16 = 0;
+if(cltype21 >= var_pvisibilitynode4->type->table_size) {
+var20 = 0;
 } else {
-var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
+var20 = var_pvisibilitynode4->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6125);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5984);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype20 = type_nullable_parser_nodes__AClasskind.color;
-idtype21 = type_nullable_parser_nodes__AClasskind.id;
+cltype24 = type_nullable_parser_nodes__AClasskind.color;
+idtype25 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var19 = 1;
+var23 = 1;
 } else {
-if(cltype20 >= var_pclasskindnode5->type->table_size) {
-var19 = 0;
+if(cltype24 >= var_pclasskindnode5->type->table_size) {
+var23 = 0;
 } else {
-var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
+var23 = var_pclasskindnode5->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6127);
-exit(1);
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5986);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype23 = type_nullable_parser_nodes__TClassid.color;
-idtype24 = type_nullable_parser_nodes__TClassid.id;
+cltype27 = type_nullable_parser_nodes__TClassid.color;
+idtype28 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var22 = 1;
+var26 = 1;
 } else {
-if(cltype23 >= var_tclassidnode6->type->table_size) {
-var22 = 0;
+if(cltype27 >= var_tclassidnode6->type->table_size) {
+var26 = 0;
 } else {
-var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
+var26 = var_tclassidnode6->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6129);
-exit(1);
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5988);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist8;
+var_listnode7 = var_nodearraylist9;
 /* <var_listnode7:nullable Object> isa Array[Object] */
-cltype26 = type_array__Arraykernel__Object.color;
-idtype27 = type_array__Arraykernel__Object.id;
+cltype30 = type_array__Arraykernel__Object.color;
+idtype31 = type_array__Arraykernel__Object.id;
 if(var_listnode7 == NULL) {
-var25 = 0;
+var29 = 0;
 } else {
-if(cltype26 >= var_listnode7->type->table_size) {
-var25 = 0;
+if(cltype30 >= var_listnode7->type->table_size) {
+var29 = 0;
 } else {
-var25 = var_listnode7->type->type_table[cltype26] == idtype27;
+var29 = var_listnode7->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6131);
-exit(1);
+if (!var29) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5990);
+show_backtrace(1);
 }
-var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction116>*/;
-var_listnode8 = var28;
-var_pexterncodeblocknode10 = var_nodearraylist9;
+var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction119>*/;
+var_listnode8 = var32;
+var_pexterncodeblocknode10 = var_nodearraylist10;
 /* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
-cltype30 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype31 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype34 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype35 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode10 == NULL) {
-var29 = 1;
+var33 = 1;
 } else {
-if(cltype30 >= var_pexterncodeblocknode10->type->table_size) {
-var29 = 0;
+if(cltype34 >= var_pexterncodeblocknode10->type->table_size) {
+var33 = 0;
 } else {
-var29 = var_pexterncodeblocknode10->type->type_table[cltype30] == idtype31;
+var33 = var_pexterncodeblocknode10->type->type_table[cltype34] == idtype35;
 }
 }
-if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6134);
-exit(1);
+if (!var33) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5993);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist11;
+var_tkwendnode13 = var_nodearraylist12;
 /* <var_tkwendnode13:nullable Object> isa nullable TKwend */
-cltype33 = type_nullable_parser_nodes__TKwend.color;
-idtype34 = type_nullable_parser_nodes__TKwend.id;
+cltype37 = type_nullable_parser_nodes__TKwend.color;
+idtype38 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode13 == NULL) {
-var32 = 1;
+var36 = 1;
 } else {
-if(cltype33 >= var_tkwendnode13->type->table_size) {
-var32 = 0;
+if(cltype37 >= var_tkwendnode13->type->table_size) {
+var36 = 0;
 } else {
-var32 = var_tkwendnode13->type->type_table[cltype33] == idtype34;
+var36 = var_tkwendnode13->type->type_table[cltype37] == idtype38;
 }
 }
-if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6136);
-exit(1);
+if (!var36) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 5995);
+show_backtrace(1);
 }
-var35 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var36 = NULL;
-var37 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var35->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var35, var_pdocnode2, var36, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var37, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var35:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var35);
-var_pclassdefnode1 = var35;
+var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var40 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var40, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var39:AStdClassdef>*/;
+var_pclassdefnode1 = var39;
 var_node_list = var_pclassdefnode1;
-var38 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction116> */
-var39 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var38) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var39, var_node_list) /* push on <var_p:Parser>*/;
+var41 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction119> */
+var42 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var41) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var42, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction116#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction116__action(val* self, val* p0) {
-parser__ReduceAction116__action(self, p0);
+/* method parser#ReduceAction119#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction119__action(val* self, val* p0) {
+parser__ReduceAction119__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction118#action for (self: ReduceAction118, Parser) */
-void parser__ReduceAction118__action(val* self, val* p0) {
+/* method parser#ReduceAction121#action for (self: ReduceAction121, Parser) */
+void parser__ReduceAction121__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var3 /* : nullable Object */;
 val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var10 /* : Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
+val* var11 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
-val* var13 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
-val* var14 /* : Array[Object] */;
-val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var13 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var_listnode7 /* var listnode7: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var31 /* : Array[Object] */;
-val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var23 /* : Array[Object] */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode11 /* var listnode11: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : Array[Object] */;
+val* var28 /* : AAnnotations */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var31 /* : null */;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
+val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
 short int var32 /* : Bool */;
 int cltype33;
 int idtype34;
-val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
+val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
 short int var35 /* : Bool */;
 int cltype36;
 int idtype37;
@@ -8444,1495 +8450,1537 @@ var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist3 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
+var_nodearraylist2 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
-var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
-var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
+var_nodearraylist1 = var9;
+var10 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
+var_listnode7 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode15 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode8 = var12;
-var13 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode11 = var13;
-var14 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode12 = var14;
+var_listnode16 = var12;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var13 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
-} else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6174);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype17 = type_nullable_parser_nodes__TKwredef.color;
-idtype18 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
-var16 = 1;
-} else {
-if(cltype17 >= var_tkwredefnode3->type->table_size) {
-var16 = 0;
+var13 = 0;
 } else {
-var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+var13 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6176);
-exit(1);
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6031);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype20 = type_nullable_parser_nodes__AVisibility.color;
-idtype21 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var19 = 1;
+var14 = 1;
 } else {
-if(cltype20 >= var_pvisibilitynode4->type->table_size) {
-var19 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6178);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6033);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype23 = type_nullable_parser_nodes__AClasskind.color;
-idtype24 = type_nullable_parser_nodes__AClasskind.id;
+cltype18 = type_nullable_parser_nodes__AClasskind.color;
+idtype19 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var22 = 1;
+var17 = 1;
 } else {
-if(cltype23 >= var_pclasskindnode5->type->table_size) {
-var22 = 0;
+if(cltype18 >= var_pclasskindnode5->type->table_size) {
+var17 = 0;
 } else {
-var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
+var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6180);
-exit(1);
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6035);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist5;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype26 = type_nullable_parser_nodes__TClassid.color;
-idtype27 = type_nullable_parser_nodes__TClassid.id;
+cltype21 = type_nullable_parser_nodes__TClassid.color;
+idtype22 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var25 = 1;
+var20 = 1;
 } else {
-if(cltype26 >= var_tclassidnode6->type->table_size) {
-var25 = 0;
+if(cltype21 >= var_tclassidnode6->type->table_size) {
+var20 = 0;
 } else {
-var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
+var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6182);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6037);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist8;
-/* <var_listnode7:nullable Object> isa Array[Object] */
-cltype29 = type_array__Arraykernel__Object.color;
-idtype30 = type_array__Arraykernel__Object.id;
-if(var_listnode7 == NULL) {
-var28 = 0;
+var23 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var23->class->vft[COLOR_array__Array__init]))(var23) /* init on <var23:Array[Object]>*/;
+var_listnode12 = var23;
+var_listnode11 = var_nodearraylist6;
+/* <var_listnode11:nullable Object> isa Array[Object] */
+cltype25 = type_array__Arraykernel__Object.color;
+idtype26 = type_array__Arraykernel__Object.id;
+if(var_listnode11 == NULL) {
+var24 = 0;
 } else {
-if(cltype29 >= var_listnode7->type->table_size) {
-var28 = 0;
+if(cltype25 >= var_listnode11->type->table_size) {
+var24 = 0;
 } else {
-var28 = var_listnode7->type->type_table[cltype29] == idtype30;
+var24 = var_listnode11->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6184);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6040);
+show_backtrace(1);
 }
-var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction118>*/;
-var_listnode8 = var31;
-var_pexterncodeblocknode10 = var_nodearraylist9;
-/* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
+var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction121>*/;
+var_listnode12 = var27;
+var28 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var29 = NULL;
+var30 = NULL;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var28, var29, var30, var_listnode12, var31) /* init_aannotations on <var28:AAnnotations>*/;
+var_pannotationsnode8 = var28;
+var_pexterncodeblocknode14 = var_nodearraylist7;
+/* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
 cltype33 = type_nullable_parser_nodes__AExternCodeBlock.color;
 idtype34 = type_nullable_parser_nodes__AExternCodeBlock.id;
-if(var_pexterncodeblocknode10 == NULL) {
+if(var_pexterncodeblocknode14 == NULL) {
 var32 = 1;
 } else {
-if(cltype33 >= var_pexterncodeblocknode10->type->table_size) {
+if(cltype33 >= var_pexterncodeblocknode14->type->table_size) {
 var32 = 0;
 } else {
-var32 = var_pexterncodeblocknode10->type->type_table[cltype33] == idtype34;
+var32 = var_pexterncodeblocknode14->type->type_table[cltype33] == idtype34;
 }
 }
 if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6187);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6049);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist11;
-/* <var_tkwendnode13:nullable Object> isa nullable TKwend */
+var_tkwendnode17 = var_nodearraylist9;
+/* <var_tkwendnode17:nullable Object> isa nullable TKwend */
 cltype36 = type_nullable_parser_nodes__TKwend.color;
 idtype37 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode13 == NULL) {
+if(var_tkwendnode17 == NULL) {
 var35 = 1;
 } else {
-if(cltype36 >= var_tkwendnode13->type->table_size) {
+if(cltype36 >= var_tkwendnode17->type->table_size) {
 var35 = 0;
 } else {
-var35 = var_tkwendnode13->type->type_table[cltype36] == idtype37;
+var35 = var_tkwendnode17->type->type_table[cltype36] == idtype37;
 }
 }
 if (!var35) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6189);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6051);
+show_backtrace(1);
 }
 var38 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
 var39 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var38, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var39, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var38:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var38);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var38, var_pdocnode2, var39, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var38:AStdClassdef>*/;
 var_pclassdefnode1 = var38;
 var_node_list = var_pclassdefnode1;
-var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction118> */
+var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction121> */
 var41 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var40) /* go_to on <var_p:Parser>*/;
 ((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var41, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction118#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction118__action(val* self, val* p0) {
-parser__ReduceAction118__action(self, p0);
+/* method parser#ReduceAction121#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction121__action(val* self, val* p0) {
+parser__ReduceAction121__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction119#action for (self: ReduceAction119, Parser) */
-void parser__ReduceAction119__action(val* self, val* p0) {
+/* method parser#ReduceAction122#action for (self: ReduceAction122, Parser) */
+void parser__ReduceAction122__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist12 /* var nodearraylist12: nullable Object */;
-val* var2 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
-val* var3 /* : nullable Object */;
 val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var9 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var12 /* : nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var11 /* : Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
+val* var12 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
 val* var13 /* : Array[Object] */;
-val* var_listnode8 /* var listnode8: Array[Object] */;
-val* var14 /* : Array[Object] */;
-val* var_listnode11 /* var listnode11: Array[Object] */;
-val* var15 /* : Array[Object] */;
-val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var16 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var_listnode7 /* var listnode7: nullable Object */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-val* var32 /* : Array[Object] */;
-val* var_pexterncodeblocknode10 /* var pexterncodeblocknode10: nullable Object */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-val* var_tkwendnode13 /* var tkwendnode13: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : Array[Object] */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode11 /* var listnode11: nullable Object */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+val* var31 /* : Array[Object] */;
+val* var32 /* : AAnnotations */;
+val* var33 /* : null */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
+val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
 short int var36 /* : Bool */;
 int cltype37;
 int idtype38;
-val* var39 /* : AStdClassdef */;
-val* var40 /* : null */;
+val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
+short int var39 /* : Bool */;
+int cltype40;
+int idtype41;
+val* var42 /* : AStdClassdef */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var41 /* : Int */;
-long var42 /* : Int */;
+long var43 /* : Int */;
+long var44 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist12 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var9;
+var_nodearraylist2 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var10;
-var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var11;
-var12 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var12;
+var_nodearraylist1 = var10;
+var11 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
+var_listnode7 = var11;
+var12 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
+var_listnode15 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode8 = var13;
-var14 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode11 = var14;
-var15 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var15->class->vft[COLOR_array__Array__init]))(var15) /* init on <var15:Array[Object]>*/;
-CHECK_NEW_array__Array(var15);
-var_listnode12 = var15;
+var_listnode16 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var16 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var16 = 0;
+var14 = 0;
 } else {
-var16 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6228);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6088);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype18 = type_nullable_parser_nodes__TKwredef.color;
-idtype19 = type_nullable_parser_nodes__TKwredef.id;
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var17 = 1;
+var15 = 1;
 } else {
-if(cltype18 >= var_tkwredefnode3->type->table_size) {
-var17 = 0;
+if(cltype16 >= var_tkwredefnode3->type->table_size) {
+var15 = 0;
 } else {
-var17 = var_tkwredefnode3->type->type_table[cltype18] == idtype19;
+var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6230);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6090);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype21 = type_nullable_parser_nodes__AVisibility.color;
-idtype22 = type_nullable_parser_nodes__AVisibility.id;
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var20 = 1;
+var18 = 1;
 } else {
-if(cltype21 >= var_pvisibilitynode4->type->table_size) {
-var20 = 0;
+if(cltype19 >= var_pvisibilitynode4->type->table_size) {
+var18 = 0;
 } else {
-var20 = var_pvisibilitynode4->type->type_table[cltype21] == idtype22;
+var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6232);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6092);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype24 = type_nullable_parser_nodes__AClasskind.color;
-idtype25 = type_nullable_parser_nodes__AClasskind.id;
+cltype22 = type_nullable_parser_nodes__AClasskind.color;
+idtype23 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var23 = 1;
+var21 = 1;
 } else {
-if(cltype24 >= var_pclasskindnode5->type->table_size) {
-var23 = 0;
+if(cltype22 >= var_pclasskindnode5->type->table_size) {
+var21 = 0;
 } else {
-var23 = var_pclasskindnode5->type->type_table[cltype24] == idtype25;
+var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var23) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6234);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6094);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist8;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype27 = type_nullable_parser_nodes__TClassid.color;
-idtype28 = type_nullable_parser_nodes__TClassid.id;
+cltype25 = type_nullable_parser_nodes__TClassid.color;
+idtype26 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var26 = 1;
+var24 = 1;
 } else {
-if(cltype27 >= var_tclassidnode6->type->table_size) {
-var26 = 0;
+if(cltype25 >= var_tclassidnode6->type->table_size) {
+var24 = 0;
 } else {
-var26 = var_tclassidnode6->type->type_table[cltype27] == idtype28;
+var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6236);
-exit(1);
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6096);
+show_backtrace(1);
 }
-var_listnode7 = var_nodearraylist9;
-/* <var_listnode7:nullable Object> isa Array[Object] */
-cltype30 = type_array__Arraykernel__Object.color;
-idtype31 = type_array__Arraykernel__Object.id;
-if(var_listnode7 == NULL) {
-var29 = 0;
+var27 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var27->class->vft[COLOR_array__Array__init]))(var27) /* init on <var27:Array[Object]>*/;
+var_listnode12 = var27;
+var_listnode11 = var_nodearraylist7;
+/* <var_listnode11:nullable Object> isa Array[Object] */
+cltype29 = type_array__Arraykernel__Object.color;
+idtype30 = type_array__Arraykernel__Object.id;
+if(var_listnode11 == NULL) {
+var28 = 0;
 } else {
-if(cltype30 >= var_listnode7->type->table_size) {
-var29 = 0;
+if(cltype29 >= var_listnode11->type->table_size) {
+var28 = 0;
 } else {
-var29 = var_listnode7->type->type_table[cltype30] == idtype31;
+var28 = var_listnode11->type->type_table[cltype29] == idtype30;
 }
 }
-if (!var29) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6238);
-exit(1);
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6099);
+show_backtrace(1);
 }
-var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode8, var_listnode7) /* concat on <self:ReduceAction119>*/;
-var_listnode8 = var32;
-var_pexterncodeblocknode10 = var_nodearraylist10;
-/* <var_pexterncodeblocknode10:nullable Object> isa nullable AExternCodeBlock */
-cltype34 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype35 = type_nullable_parser_nodes__AExternCodeBlock.id;
-if(var_pexterncodeblocknode10 == NULL) {
-var33 = 1;
+var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction122>*/;
+var_listnode12 = var31;
+var32 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var33 = NULL;
+var34 = NULL;
+var35 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var32, var33, var34, var_listnode12, var35) /* init_aannotations on <var32:AAnnotations>*/;
+var_pannotationsnode8 = var32;
+var_pexterncodeblocknode14 = var_nodearraylist8;
+/* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
+cltype37 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype38 = type_nullable_parser_nodes__AExternCodeBlock.id;
+if(var_pexterncodeblocknode14 == NULL) {
+var36 = 1;
 } else {
-if(cltype34 >= var_pexterncodeblocknode10->type->table_size) {
-var33 = 0;
+if(cltype37 >= var_pexterncodeblocknode14->type->table_size) {
+var36 = 0;
 } else {
-var33 = var_pexterncodeblocknode10->type->type_table[cltype34] == idtype35;
+var36 = var_pexterncodeblocknode14->type->type_table[cltype37] == idtype38;
 }
 }
-if (!var33) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6241);
-exit(1);
+if (!var36) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6108);
+show_backtrace(1);
 }
-var_tkwendnode13 = var_nodearraylist12;
-/* <var_tkwendnode13:nullable Object> isa nullable TKwend */
-cltype37 = type_nullable_parser_nodes__TKwend.color;
-idtype38 = type_nullable_parser_nodes__TKwend.id;
-if(var_tkwendnode13 == NULL) {
-var36 = 1;
+var_tkwendnode17 = var_nodearraylist10;
+/* <var_tkwendnode17:nullable Object> isa nullable TKwend */
+cltype40 = type_nullable_parser_nodes__TKwend.color;
+idtype41 = type_nullable_parser_nodes__TKwend.id;
+if(var_tkwendnode17 == NULL) {
+var39 = 1;
 } else {
-if(cltype37 >= var_tkwendnode13->type->table_size) {
-var36 = 0;
+if(cltype40 >= var_tkwendnode17->type->table_size) {
+var39 = 0;
 } else {
-var36 = var_tkwendnode13->type->type_table[cltype37] == idtype38;
+var39 = var_tkwendnode17->type->type_table[cltype40] == idtype41;
 }
 }
-if (!var36) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6243);
-exit(1);
+if (!var39) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6110);
+show_backtrace(1);
 }
-var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var40 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode8, var40, var_pexterncodeblocknode10, var_listnode11, var_listnode12, var_tkwendnode13) /* init_astdclassdef on <var39:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var39);
-var_pclassdefnode1 = var39;
+var42 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var42->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var42, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var42:AStdClassdef>*/;
+var_pclassdefnode1 = var42;
 var_node_list = var_pclassdefnode1;
-var41 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction119> */
-var42 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var41) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var42, var_node_list) /* push on <var_p:Parser>*/;
+var43 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction122> */
+var44 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var43) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var44, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction119#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction119__action(val* self, val* p0) {
-parser__ReduceAction119__action(self, p0);
+/* method parser#ReduceAction122#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction122__action(val* self, val* p0) {
+parser__ReduceAction122__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction121#action for (self: ReduceAction121, Parser) */
-void parser__ReduceAction121__action(val* self, val* p0) {
+/* method parser#ReduceAction123#action for (self: ReduceAction123, Parser) */
+void parser__ReduceAction123__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var9 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var10 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var10 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var11 /* : Array[Object] */;
-val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var13 /* : Array[Object] */;
 val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var13 /* : Bool */;
+short int var14 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var23 /* : Array[Object] */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var24 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_listnode11 /* var listnode11: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : Array[Object] */;
-val* var28 /* : AAnnotations */;
-val* var29 /* : null */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : Array[Object] */;
+val* var29 /* : AAnnotations */;
 val* var30 /* : null */;
 val* var31 /* : null */;
+val* var32 /* : null */;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
 val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
-short int var32 /* : Bool */;
-int cltype33;
-int idtype34;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
 val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
-short int var35 /* : Bool */;
-int cltype36;
-int idtype37;
-val* var38 /* : AStdClassdef */;
-val* var39 /* : null */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+val* var39 /* : AStdClassdef */;
+val* var40 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var40 /* : Int */;
 long var41 /* : Int */;
+long var42 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist3 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
-var10 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var10->class->vft[COLOR_array__Array__init]))(var10) /* init on <var10:Array[Object]>*/;
-CHECK_NEW_array__Array(var10);
-var_listnode7 = var10;
+var_nodearraylist2 = var9;
+var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var10;
 var11 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode15 = var11;
+var_listnode7 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode16 = var12;
+var_listnode15 = var12;
+var13 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
+var_listnode16 = var13;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var13 = 1;
+var14 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var13 = 0;
+var14 = 0;
 } else {
-var13 = var_pdocnode2->type->type_table[cltype] == idtype;
+var14 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var13) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6279);
-exit(1);
+if (!var14) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6147);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
-var14 = 0;
+if(cltype16 >= var_pvisibilitynode4->type->table_size) {
+var15 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6281);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6149);
+show_backtrace(1);
 }
 var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype18 = type_nullable_parser_nodes__AClasskind.color;
-idtype19 = type_nullable_parser_nodes__AClasskind.id;
+cltype19 = type_nullable_parser_nodes__AClasskind.color;
+idtype20 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var17 = 1;
+var18 = 1;
 } else {
-if(cltype18 >= var_pclasskindnode5->type->table_size) {
-var17 = 0;
+if(cltype19 >= var_pclasskindnode5->type->table_size) {
+var18 = 0;
 } else {
-var17 = var_pclasskindnode5->type->type_table[cltype18] == idtype19;
+var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var17) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6283);
-exit(1);
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6151);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist5;
+var_tclassidnode6 = var_nodearraylist6;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype21 = type_nullable_parser_nodes__TClassid.color;
-idtype22 = type_nullable_parser_nodes__TClassid.id;
+cltype22 = type_nullable_parser_nodes__TClassid.color;
+idtype23 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var20 = 1;
+var21 = 1;
 } else {
-if(cltype21 >= var_tclassidnode6->type->table_size) {
-var20 = 0;
+if(cltype22 >= var_tclassidnode6->type->table_size) {
+var21 = 0;
 } else {
-var20 = var_tclassidnode6->type->type_table[cltype21] == idtype22;
+var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var20) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6285);
-exit(1);
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6153);
+show_backtrace(1);
 }
-var23 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var23->class->vft[COLOR_array__Array__init]))(var23) /* init on <var23:Array[Object]>*/;
-CHECK_NEW_array__Array(var23);
-var_listnode12 = var23;
-var_listnode11 = var_nodearraylist6;
+var24 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var24->class->vft[COLOR_array__Array__init]))(var24) /* init on <var24:Array[Object]>*/;
+var_listnode12 = var24;
+var_listnode11 = var_nodearraylist7;
 /* <var_listnode11:nullable Object> isa Array[Object] */
-cltype25 = type_array__Arraykernel__Object.color;
-idtype26 = type_array__Arraykernel__Object.id;
+cltype26 = type_array__Arraykernel__Object.color;
+idtype27 = type_array__Arraykernel__Object.id;
 if(var_listnode11 == NULL) {
-var24 = 0;
+var25 = 0;
 } else {
-if(cltype25 >= var_listnode11->type->table_size) {
-var24 = 0;
+if(cltype26 >= var_listnode11->type->table_size) {
+var25 = 0;
 } else {
-var24 = var_listnode11->type->type_table[cltype25] == idtype26;
+var25 = var_listnode11->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6288);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6156);
+show_backtrace(1);
 }
-var27 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction121>*/;
-var_listnode12 = var27;
-var28 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var29 = NULL;
+var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction123>*/;
+var_listnode12 = var28;
+var29 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
 var30 = NULL;
 var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var28, var29, var30, var_listnode12, var31) /* init_aannotations on <var28:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var28);
-var_pannotationsnode8 = var28;
-var_pexterncodeblocknode14 = var_nodearraylist7;
+var32 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var29, var30, var31, var_listnode12, var32) /* init_aannotations on <var29:AAnnotations>*/;
+var_pannotationsnode8 = var29;
+var_pexterncodeblocknode14 = var_nodearraylist8;
 /* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
-cltype33 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype34 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype34 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype35 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode14 == NULL) {
-var32 = 1;
+var33 = 1;
 } else {
-if(cltype33 >= var_pexterncodeblocknode14->type->table_size) {
-var32 = 0;
+if(cltype34 >= var_pexterncodeblocknode14->type->table_size) {
+var33 = 0;
 } else {
-var32 = var_pexterncodeblocknode14->type->type_table[cltype33] == idtype34;
+var33 = var_pexterncodeblocknode14->type->type_table[cltype34] == idtype35;
 }
 }
-if (!var32) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6297);
-exit(1);
+if (!var33) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6165);
+show_backtrace(1);
 }
-var_tkwendnode17 = var_nodearraylist9;
+var_tkwendnode17 = var_nodearraylist10;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
-cltype36 = type_nullable_parser_nodes__TKwend.color;
-idtype37 = type_nullable_parser_nodes__TKwend.id;
+cltype37 = type_nullable_parser_nodes__TKwend.color;
+idtype38 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode17 == NULL) {
-var35 = 1;
+var36 = 1;
 } else {
-if(cltype36 >= var_tkwendnode17->type->table_size) {
-var35 = 0;
+if(cltype37 >= var_tkwendnode17->type->table_size) {
+var36 = 0;
 } else {
-var35 = var_tkwendnode17->type->type_table[cltype36] == idtype37;
+var36 = var_tkwendnode17->type->type_table[cltype37] == idtype38;
 }
 }
-if (!var35) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6299);
-exit(1);
+if (!var36) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6167);
+show_backtrace(1);
 }
-var38 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var39 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var38->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var38, var_pdocnode2, var39, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var38:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var38);
-var_pclassdefnode1 = var38;
+var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var40 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var40, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var39:AStdClassdef>*/;
+var_pclassdefnode1 = var39;
 var_node_list = var_pclassdefnode1;
-var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction121> */
-var41 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var40) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var41, var_node_list) /* push on <var_p:Parser>*/;
+var41 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction123> */
+var42 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var41) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var42, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction121#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction121__action(val* self, val* p0) {
-parser__ReduceAction121__action(self, p0);
+/* method parser#ReduceAction123#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction123__action(val* self, val* p0) {
+parser__ReduceAction123__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction122#action for (self: ReduceAction122, Parser) */
-void parser__ReduceAction122__action(val* self, val* p0) {
+/* method parser#ReduceAction124#action for (self: ReduceAction124, Parser) */
+void parser__ReduceAction124__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : Array[Object] */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : Array[Object] */;
 val* var_listnode12 /* var listnode12: Array[Object] */;
 val* var_listnode11 /* var listnode11: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var31 /* : Array[Object] */;
-val* var32 /* : AAnnotations */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : Array[Object] */;
+val* var30 /* : AAnnotations */;
+val* var31 /* : null */;
+val* var32 /* : null */;
 val* var33 /* : null */;
-val* var34 /* : null */;
-val* var35 /* : null */;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
 val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
 val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
-short int var39 /* : Bool */;
-int cltype40;
-int idtype41;
-val* var42 /* : AStdClassdef */;
+short int var37 /* : Bool */;
+int cltype38;
+int idtype39;
+val* var40 /* : AStdClassdef */;
+val* var41 /* : null */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
+long var42 /* : Int */;
 long var43 /* : Int */;
-long var44 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode7 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode15 = var12;
+var_listnode7 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode16 = var13;
+var_listnode15 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode16 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6336);
-exit(1);
-}
-var_tkwredefnode3 = var_nodearraylist2;
-/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode3 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode3->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_tkwredefnode3->type->type_table[cltype16] == idtype17;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6338);
-exit(1);
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6205);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist3;
+var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
+cltype17 = type_nullable_parser_nodes__AVisibility.color;
+idtype18 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var18 = 1;
+var16 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode4->type->table_size) {
-var18 = 0;
+if(cltype17 >= var_pvisibilitynode4->type->table_size) {
+var16 = 0;
 } else {
-var18 = var_pvisibilitynode4->type->type_table[cltype19] == idtype20;
+var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6340);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6207);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist4;
+var_pclasskindnode5 = var_nodearraylist3;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype22 = type_nullable_parser_nodes__AClasskind.color;
-idtype23 = type_nullable_parser_nodes__AClasskind.id;
+cltype20 = type_nullable_parser_nodes__AClasskind.color;
+idtype21 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var21 = 1;
+var19 = 1;
 } else {
-if(cltype22 >= var_pclasskindnode5->type->table_size) {
-var21 = 0;
+if(cltype20 >= var_pclasskindnode5->type->table_size) {
+var19 = 0;
 } else {
-var21 = var_pclasskindnode5->type->type_table[cltype22] == idtype23;
+var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6342);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6209);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype25 = type_nullable_parser_nodes__TClassid.color;
-idtype26 = type_nullable_parser_nodes__TClassid.id;
+cltype23 = type_nullable_parser_nodes__TClassid.color;
+idtype24 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var24 = 1;
+var22 = 1;
 } else {
-if(cltype25 >= var_tclassidnode6->type->table_size) {
-var24 = 0;
+if(cltype23 >= var_tclassidnode6->type->table_size) {
+var22 = 0;
 } else {
-var24 = var_tclassidnode6->type->type_table[cltype25] == idtype26;
+var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var24) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6344);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6211);
+show_backtrace(1);
 }
-var27 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var27->class->vft[COLOR_array__Array__init]))(var27) /* init on <var27:Array[Object]>*/;
-CHECK_NEW_array__Array(var27);
-var_listnode12 = var27;
-var_listnode11 = var_nodearraylist7;
+var25 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var25->class->vft[COLOR_array__Array__init]))(var25) /* init on <var25:Array[Object]>*/;
+var_listnode12 = var25;
+var_listnode11 = var_nodearraylist8;
 /* <var_listnode11:nullable Object> isa Array[Object] */
-cltype29 = type_array__Arraykernel__Object.color;
-idtype30 = type_array__Arraykernel__Object.id;
+cltype27 = type_array__Arraykernel__Object.color;
+idtype28 = type_array__Arraykernel__Object.id;
 if(var_listnode11 == NULL) {
-var28 = 0;
+var26 = 0;
 } else {
-if(cltype29 >= var_listnode11->type->table_size) {
-var28 = 0;
+if(cltype27 >= var_listnode11->type->table_size) {
+var26 = 0;
 } else {
-var28 = var_listnode11->type->type_table[cltype29] == idtype30;
+var26 = var_listnode11->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var28) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6347);
-exit(1);
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6214);
+show_backtrace(1);
 }
-var31 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction122>*/;
-var_listnode12 = var31;
-var32 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var29 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction124>*/;
+var_listnode12 = var29;
+var30 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var31 = NULL;
+var32 = NULL;
 var33 = NULL;
-var34 = NULL;
-var35 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var32, var33, var34, var_listnode12, var35) /* init_aannotations on <var32:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var32);
-var_pannotationsnode8 = var32;
-var_pexterncodeblocknode14 = var_nodearraylist8;
+((void (*)(val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var30, var31, var32, var_listnode12, var33) /* init_aannotations on <var30:AAnnotations>*/;
+var_pannotationsnode8 = var30;
+var_pexterncodeblocknode14 = var_nodearraylist9;
 /* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
-cltype37 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype38 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype35 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype36 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode14 == NULL) {
-var36 = 1;
+var34 = 1;
 } else {
-if(cltype37 >= var_pexterncodeblocknode14->type->table_size) {
-var36 = 0;
+if(cltype35 >= var_pexterncodeblocknode14->type->table_size) {
+var34 = 0;
 } else {
-var36 = var_pexterncodeblocknode14->type->type_table[cltype37] == idtype38;
+var34 = var_pexterncodeblocknode14->type->type_table[cltype35] == idtype36;
 }
 }
-if (!var36) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6356);
-exit(1);
+if (!var34) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6223);
+show_backtrace(1);
 }
-var_tkwendnode17 = var_nodearraylist10;
+var_tkwendnode17 = var_nodearraylist11;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
-cltype40 = type_nullable_parser_nodes__TKwend.color;
-idtype41 = type_nullable_parser_nodes__TKwend.id;
+cltype38 = type_nullable_parser_nodes__TKwend.color;
+idtype39 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode17 == NULL) {
-var39 = 1;
+var37 = 1;
 } else {
-if(cltype40 >= var_tkwendnode17->type->table_size) {
-var39 = 0;
+if(cltype38 >= var_tkwendnode17->type->table_size) {
+var37 = 0;
 } else {
-var39 = var_tkwendnode17->type->type_table[cltype40] == idtype41;
+var37 = var_tkwendnode17->type->type_table[cltype38] == idtype39;
 }
 }
-if (!var39) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6358);
-exit(1);
+if (!var37) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6225);
+show_backtrace(1);
 }
-var42 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var42->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var42, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var42:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var42);
-var_pclassdefnode1 = var42;
+var40 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+var41 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var40->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var40, var_pdocnode2, var41, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var40:AStdClassdef>*/;
+var_pclassdefnode1 = var40;
 var_node_list = var_pclassdefnode1;
-var43 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction122> */
-var44 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var43) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var44, var_node_list) /* push on <var_p:Parser>*/;
+var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction124> */
+var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction122#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction122__action(val* self, val* p0) {
-parser__ReduceAction122__action(self, p0);
+/* method parser#ReduceAction124#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction124__action(val* self, val* p0) {
+parser__ReduceAction124__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction123#action for (self: ReduceAction123, Parser) */
-void parser__ReduceAction123__action(val* self, val* p0) {
+/* method parser#ReduceAction126#action for (self: ReduceAction126, Parser) */
+void parser__ReduceAction126__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var10 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var11 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var11 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var12 /* : Array[Object] */;
-val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var13 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var14 /* : Array[Object] */;
 val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var14 /* : Bool */;
+short int var15 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var24 /* : Array[Object] */;
-val* var_listnode12 /* var listnode12: Array[Object] */;
-val* var_listnode11 /* var listnode11: nullable Object */;
 short int var25 /* : Bool */;
 int cltype26;
 int idtype27;
 val* var28 /* : Array[Object] */;
-val* var29 /* : AAnnotations */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode11 /* var listnode11: nullable Object */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+val* var32 /* : Array[Object] */;
+val* var33 /* : AAnnotations */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
 val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
+short int var37 /* : Bool */;
+int cltype38;
+int idtype39;
 val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-val* var39 /* : AStdClassdef */;
-val* var40 /* : null */;
+short int var40 /* : Bool */;
+int cltype41;
+int idtype42;
+val* var43 /* : AStdClassdef */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var41 /* : Int */;
-long var42 /* : Int */;
+long var44 /* : Int */;
+long var45 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var9;
+var_nodearraylist3 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var10;
-var11 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var11->class->vft[COLOR_array__Array__init]))(var11) /* init on <var11:Array[Object]>*/;
-CHECK_NEW_array__Array(var11);
-var_listnode7 = var11;
+var_nodearraylist2 = var10;
+var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var11;
 var12 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode15 = var12;
+var_listnode7 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode16 = var13;
+var_listnode15 = var13;
+var14 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
+var_listnode16 = var14;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var14 = 1;
+var15 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var14 = 0;
+var15 = 0;
 } else {
-var14 = var_pdocnode2->type->type_table[cltype] == idtype;
+var15 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var14) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6395);
-exit(1);
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6263);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype17 = type_nullable_parser_nodes__TKwredef.color;
+idtype18 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var16 = 1;
+} else {
+if(cltype17 >= var_tkwredefnode3->type->table_size) {
+var16 = 0;
+} else {
+var16 = var_tkwredefnode3->type->type_table[cltype17] == idtype18;
+}
+}
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6265);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
+cltype20 = type_nullable_parser_nodes__AVisibility.color;
+idtype21 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var15 = 1;
+var19 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode4->type->table_size) {
-var15 = 0;
+if(cltype20 >= var_pvisibilitynode4->type->table_size) {
+var19 = 0;
 } else {
-var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
+var19 = var_pvisibilitynode4->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6397);
-exit(1);
+if (!var19) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6267);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype19 = type_nullable_parser_nodes__AClasskind.color;
-idtype20 = type_nullable_parser_nodes__AClasskind.id;
+cltype23 = type_nullable_parser_nodes__AClasskind.color;
+idtype24 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var18 = 1;
+var22 = 1;
 } else {
-if(cltype19 >= var_pclasskindnode5->type->table_size) {
-var18 = 0;
+if(cltype23 >= var_pclasskindnode5->type->table_size) {
+var22 = 0;
 } else {
-var18 = var_pclasskindnode5->type->type_table[cltype19] == idtype20;
+var22 = var_pclasskindnode5->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var18) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6399);
-exit(1);
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6269);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist6;
+var_tclassidnode6 = var_nodearraylist7;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype22 = type_nullable_parser_nodes__TClassid.color;
-idtype23 = type_nullable_parser_nodes__TClassid.id;
+cltype26 = type_nullable_parser_nodes__TClassid.color;
+idtype27 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var21 = 1;
+var25 = 1;
 } else {
-if(cltype22 >= var_tclassidnode6->type->table_size) {
-var21 = 0;
+if(cltype26 >= var_tclassidnode6->type->table_size) {
+var25 = 0;
 } else {
-var21 = var_tclassidnode6->type->type_table[cltype22] == idtype23;
+var25 = var_tclassidnode6->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6401);
-exit(1);
+if (!var25) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6271);
+show_backtrace(1);
 }
-var24 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var24->class->vft[COLOR_array__Array__init]))(var24) /* init on <var24:Array[Object]>*/;
-CHECK_NEW_array__Array(var24);
-var_listnode12 = var24;
-var_listnode11 = var_nodearraylist7;
+var28 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var28->class->vft[COLOR_array__Array__init]))(var28) /* init on <var28:Array[Object]>*/;
+var_listnode12 = var28;
+var_listnode11 = var_nodearraylist8;
 /* <var_listnode11:nullable Object> isa Array[Object] */
-cltype26 = type_array__Arraykernel__Object.color;
-idtype27 = type_array__Arraykernel__Object.id;
+cltype30 = type_array__Arraykernel__Object.color;
+idtype31 = type_array__Arraykernel__Object.id;
 if(var_listnode11 == NULL) {
-var25 = 0;
+var29 = 0;
 } else {
-if(cltype26 >= var_listnode11->type->table_size) {
-var25 = 0;
+if(cltype30 >= var_listnode11->type->table_size) {
+var29 = 0;
 } else {
-var25 = var_listnode11->type->type_table[cltype26] == idtype27;
+var29 = var_listnode11->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var25) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6404);
-exit(1);
+if (!var29) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6274);
+show_backtrace(1);
 }
-var28 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction123>*/;
-var_listnode12 = var28;
-var29 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var29, var30, var31, var_listnode12, var32) /* init_aannotations on <var29:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var29);
-var_pannotationsnode8 = var29;
-var_pexterncodeblocknode14 = var_nodearraylist8;
+var32 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction126>*/;
+var_listnode12 = var32;
+var33 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var34 = NULL;
+var35 = NULL;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var33, var34, var35, var_listnode12, var36) /* init_aannotations on <var33:AAnnotations>*/;
+var_pannotationsnode8 = var33;
+var_pexterncodeblocknode14 = var_nodearraylist9;
 /* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
-cltype34 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype35 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype38 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype39 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode14 == NULL) {
-var33 = 1;
+var37 = 1;
 } else {
-if(cltype34 >= var_pexterncodeblocknode14->type->table_size) {
-var33 = 0;
+if(cltype38 >= var_pexterncodeblocknode14->type->table_size) {
+var37 = 0;
 } else {
-var33 = var_pexterncodeblocknode14->type->type_table[cltype34] == idtype35;
+var37 = var_pexterncodeblocknode14->type->type_table[cltype38] == idtype39;
 }
 }
-if (!var33) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6413);
-exit(1);
+if (!var37) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6283);
+show_backtrace(1);
 }
-var_tkwendnode17 = var_nodearraylist10;
+var_tkwendnode17 = var_nodearraylist11;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
-cltype37 = type_nullable_parser_nodes__TKwend.color;
-idtype38 = type_nullable_parser_nodes__TKwend.id;
+cltype41 = type_nullable_parser_nodes__TKwend.color;
+idtype42 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode17 == NULL) {
-var36 = 1;
+var40 = 1;
 } else {
-if(cltype37 >= var_tkwendnode17->type->table_size) {
-var36 = 0;
+if(cltype41 >= var_tkwendnode17->type->table_size) {
+var40 = 0;
 } else {
-var36 = var_tkwendnode17->type->type_table[cltype37] == idtype38;
+var40 = var_tkwendnode17->type->type_table[cltype41] == idtype42;
 }
 }
-if (!var36) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6415);
-exit(1);
+if (!var40) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6285);
+show_backtrace(1);
 }
-var39 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var40 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var39->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var39, var_pdocnode2, var40, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var39:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var39);
-var_pclassdefnode1 = var39;
+var43 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var43->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var43, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var43:AStdClassdef>*/;
+var_pclassdefnode1 = var43;
 var_node_list = var_pclassdefnode1;
-var41 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction123> */
-var42 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var41) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var42, var_node_list) /* push on <var_p:Parser>*/;
+var44 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction126> */
+var45 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var44) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var45, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction123#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction123__action(val* self, val* p0) {
-parser__ReduceAction123__action(self, p0);
+/* method parser#ReduceAction126#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction126__action(val* self, val* p0) {
+parser__ReduceAction126__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction124#action for (self: ReduceAction124, Parser) */
-void parser__ReduceAction124__action(val* self, val* p0) {
+/* method parser#ReduceAction127#action for (self: ReduceAction127, Parser) */
+void parser__ReduceAction127__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
 val* var1 /* : nullable Object */;
-val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
+val* var_nodearraylist12 /* var nodearraylist12: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
+val* var_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var9 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var10 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var11 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var12 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
-val* var12 /* : Array[Object] */;
-val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var13 /* : Array[Object] */;
-val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var_listnode7 /* var listnode7: Array[Object] */;
 val* var14 /* : Array[Object] */;
+val* var_listnode15 /* var listnode15: Array[Object] */;
+val* var15 /* : Array[Object] */;
 val* var_listnode16 /* var listnode16: Array[Object] */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var15 /* : Bool */;
+short int var16 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_pclasskindnode5 /* var pclasskindnode5: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : Array[Object] */;
-val* var_listnode12 /* var listnode12: Array[Object] */;
-val* var_listnode11 /* var listnode11: nullable Object */;
 short int var26 /* : Bool */;
 int cltype27;
 int idtype28;
 val* var29 /* : Array[Object] */;
-val* var30 /* : AAnnotations */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
+val* var_listnode12 /* var listnode12: Array[Object] */;
+val* var_listnode11 /* var listnode11: nullable Object */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : Array[Object] */;
+val* var34 /* : AAnnotations */;
+val* var35 /* : null */;
+val* var36 /* : null */;
+val* var37 /* : null */;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable AAnnotations */;
 val* var_pexterncodeblocknode14 /* var pexterncodeblocknode14: nullable Object */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
+short int var38 /* : Bool */;
+int cltype39;
+int idtype40;
 val* var_tkwendnode17 /* var tkwendnode17: nullable Object */;
-short int var37 /* : Bool */;
-int cltype38;
-int idtype39;
-val* var40 /* : AStdClassdef */;
-val* var41 /* : null */;
+short int var41 /* : Bool */;
+int cltype42;
+int idtype43;
+val* var44 /* : AStdClassdef */;
 val* var_pclassdefnode1 /* var pclassdefnode1: nullable AStdClassdef */;
-long var42 /* : Int */;
-long var43 /* : Int */;
+long var45 /* : Int */;
+long var46 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
 var1 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist11 = var1;
+var_nodearraylist12 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist11 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist10 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist9 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
+var_nodearraylist8 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
+var_nodearraylist7 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var7;
+var_nodearraylist6 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var8;
+var_nodearraylist5 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var9;
+var_nodearraylist4 = var9;
 var10 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var10;
+var_nodearraylist3 = var10;
 var11 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var11;
-var12 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var12->class->vft[COLOR_array__Array__init]))(var12) /* init on <var12:Array[Object]>*/;
-CHECK_NEW_array__Array(var12);
-var_listnode7 = var12;
+var_nodearraylist2 = var11;
+var12 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var12;
 var13 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var13->class->vft[COLOR_array__Array__init]))(var13) /* init on <var13:Array[Object]>*/;
-CHECK_NEW_array__Array(var13);
-var_listnode15 = var13;
+var_listnode7 = var13;
 var14 = NEW_array__Array(&type_array__Arraykernel__Object);
 ((void (*)(val*))(var14->class->vft[COLOR_array__Array__init]))(var14) /* init on <var14:Array[Object]>*/;
-CHECK_NEW_array__Array(var14);
-var_listnode16 = var14;
+var_listnode15 = var14;
+var15 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var15->class->vft[COLOR_array__Array__init]))(var15) /* init on <var15:Array[Object]>*/;
+var_listnode16 = var15;
 var_pdocnode2 = var_nodearraylist1;
 /* <var_pdocnode2:nullable Object> isa nullable ADoc */
 cltype = type_nullable_parser_nodes__ADoc.color;
 idtype = type_nullable_parser_nodes__ADoc.id;
 if(var_pdocnode2 == NULL) {
-var15 = 1;
+var16 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var15 = 0;
+var16 = 0;
 } else {
-var15 = var_pdocnode2->type->type_table[cltype] == idtype;
+var16 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var15) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6453);
-exit(1);
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6324);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype18 = type_nullable_parser_nodes__TKwredef.color;
+idtype19 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_tkwredefnode3->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_tkwredefnode3->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6326);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype17 = type_nullable_parser_nodes__AVisibility.color;
-idtype18 = type_nullable_parser_nodes__AVisibility.id;
+cltype21 = type_nullable_parser_nodes__AVisibility.color;
+idtype22 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var16 = 1;
+var20 = 1;
 } else {
-if(cltype17 >= var_pvisibilitynode4->type->table_size) {
-var16 = 0;
+if(cltype21 >= var_pvisibilitynode4->type->table_size) {
+var20 = 0;
 } else {
-var16 = var_pvisibilitynode4->type->type_table[cltype17] == idtype18;
+var20 = var_pvisibilitynode4->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var16) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6455);
-exit(1);
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6328);
+show_backtrace(1);
 }
-var_pclasskindnode5 = var_nodearraylist3;
+var_pclasskindnode5 = var_nodearraylist4;
 /* <var_pclasskindnode5:nullable Object> isa nullable AClasskind */
-cltype20 = type_nullable_parser_nodes__AClasskind.color;
-idtype21 = type_nullable_parser_nodes__AClasskind.id;
+cltype24 = type_nullable_parser_nodes__AClasskind.color;
+idtype25 = type_nullable_parser_nodes__AClasskind.id;
 if(var_pclasskindnode5 == NULL) {
-var19 = 1;
+var23 = 1;
 } else {
-if(cltype20 >= var_pclasskindnode5->type->table_size) {
-var19 = 0;
+if(cltype24 >= var_pclasskindnode5->type->table_size) {
+var23 = 0;
 } else {
-var19 = var_pclasskindnode5->type->type_table[cltype20] == idtype21;
+var23 = var_pclasskindnode5->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6457);
-exit(1);
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6330);
+show_backtrace(1);
 }
-var_tclassidnode6 = var_nodearraylist7;
+var_tclassidnode6 = var_nodearraylist8;
 /* <var_tclassidnode6:nullable Object> isa nullable TClassid */
-cltype23 = type_nullable_parser_nodes__TClassid.color;
-idtype24 = type_nullable_parser_nodes__TClassid.id;
+cltype27 = type_nullable_parser_nodes__TClassid.color;
+idtype28 = type_nullable_parser_nodes__TClassid.id;
 if(var_tclassidnode6 == NULL) {
-var22 = 1;
+var26 = 1;
 } else {
-if(cltype23 >= var_tclassidnode6->type->table_size) {
-var22 = 0;
+if(cltype27 >= var_tclassidnode6->type->table_size) {
+var26 = 0;
 } else {
-var22 = var_tclassidnode6->type->type_table[cltype23] == idtype24;
+var26 = var_tclassidnode6->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var22) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6459);
-exit(1);
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6332);
+show_backtrace(1);
 }
-var25 = NEW_array__Array(&type_array__Arraykernel__Object);
-((void (*)(val*))(var25->class->vft[COLOR_array__Array__init]))(var25) /* init on <var25:Array[Object]>*/;
-CHECK_NEW_array__Array(var25);
-var_listnode12 = var25;
-var_listnode11 = var_nodearraylist8;
+var29 = NEW_array__Array(&type_array__Arraykernel__Object);
+((void (*)(val*))(var29->class->vft[COLOR_array__Array__init]))(var29) /* init on <var29:Array[Object]>*/;
+var_listnode12 = var29;
+var_listnode11 = var_nodearraylist9;
 /* <var_listnode11:nullable Object> isa Array[Object] */
-cltype27 = type_array__Arraykernel__Object.color;
-idtype28 = type_array__Arraykernel__Object.id;
+cltype31 = type_array__Arraykernel__Object.color;
+idtype32 = type_array__Arraykernel__Object.id;
 if(var_listnode11 == NULL) {
-var26 = 0;
+var30 = 0;
 } else {
-if(cltype27 >= var_listnode11->type->table_size) {
-var26 = 0;
+if(cltype31 >= var_listnode11->type->table_size) {
+var30 = 0;
 } else {
-var26 = var_listnode11->type->type_table[cltype27] == idtype28;
+var30 = var_listnode11->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var26) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6462);
-exit(1);
+if (!var30) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6335);
+show_backtrace(1);
 }
-var29 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction124>*/;
-var_listnode12 = var29;
-var30 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*))(var30->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var30, var31, var32, var_listnode12, var33) /* init_aannotations on <var30:AAnnotations>*/;
-CHECK_NEW_parser_nodes__AAnnotations(var30);
-var_pannotationsnode8 = var30;
-var_pexterncodeblocknode14 = var_nodearraylist9;
+var33 = ((val* (*)(val*, val*, val*))(self->class->vft[COLOR_parser__ReduceAction__concat]))(self, var_listnode12, var_listnode11) /* concat on <self:ReduceAction127>*/;
+var_listnode12 = var33;
+var34 = NEW_parser_nodes__AAnnotations(&type_parser_nodes__AAnnotations);
+var35 = NULL;
+var36 = NULL;
+var37 = NULL;
+((void (*)(val*, val*, val*, val*, val*))(var34->class->vft[COLOR_parser_prod__AAnnotations__init_aannotations]))(var34, var35, var36, var_listnode12, var37) /* init_aannotations on <var34:AAnnotations>*/;
+var_pannotationsnode8 = var34;
+var_pexterncodeblocknode14 = var_nodearraylist10;
 /* <var_pexterncodeblocknode14:nullable Object> isa nullable AExternCodeBlock */
-cltype35 = type_nullable_parser_nodes__AExternCodeBlock.color;
-idtype36 = type_nullable_parser_nodes__AExternCodeBlock.id;
+cltype39 = type_nullable_parser_nodes__AExternCodeBlock.color;
+idtype40 = type_nullable_parser_nodes__AExternCodeBlock.id;
 if(var_pexterncodeblocknode14 == NULL) {
-var34 = 1;
+var38 = 1;
 } else {
-if(cltype35 >= var_pexterncodeblocknode14->type->table_size) {
-var34 = 0;
+if(cltype39 >= var_pexterncodeblocknode14->type->table_size) {
+var38 = 0;
 } else {
-var34 = var_pexterncodeblocknode14->type->type_table[cltype35] == idtype36;
+var38 = var_pexterncodeblocknode14->type->type_table[cltype39] == idtype40;
 }
 }
-if (!var34) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6471);
-exit(1);
+if (!var38) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6344);
+show_backtrace(1);
 }
-var_tkwendnode17 = var_nodearraylist11;
+var_tkwendnode17 = var_nodearraylist12;
 /* <var_tkwendnode17:nullable Object> isa nullable TKwend */
-cltype38 = type_nullable_parser_nodes__TKwend.color;
-idtype39 = type_nullable_parser_nodes__TKwend.id;
+cltype42 = type_nullable_parser_nodes__TKwend.color;
+idtype43 = type_nullable_parser_nodes__TKwend.id;
 if(var_tkwendnode17 == NULL) {
-var37 = 1;
+var41 = 1;
 } else {
-if(cltype38 >= var_tkwendnode17->type->table_size) {
-var37 = 0;
+if(cltype42 >= var_tkwendnode17->type->table_size) {
+var41 = 0;
 } else {
-var37 = var_tkwendnode17->type->type_table[cltype38] == idtype39;
+var41 = var_tkwendnode17->type->type_table[cltype42] == idtype43;
 }
 }
-if (!var37) {
-fprintf(stderr, "Runtime error: %s (%s:%d)\n", "Assert failed", "src/parser/parser.nit", 6473);
-exit(1);
+if (!var41) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 6346);
+show_backtrace(1);
 }
-var40 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
-var41 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var40->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var40, var_pdocnode2, var41, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var40:AStdClassdef>*/;
-CHECK_NEW_parser_nodes__AStdClassdef(var40);
-var_pclassdefnode1 = var40;
+var44 = NEW_parser_nodes__AStdClassdef(&type_parser_nodes__AStdClassdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var44->class->vft[COLOR_parser_prod__AStdClassdef__init_astdclassdef]))(var44, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_pclasskindnode5, var_tclassidnode6, var_listnode7, var_pannotationsnode8, var_pexterncodeblocknode14, var_listnode15, var_listnode16, var_tkwendnode17) /* init_astdclassdef on <var44:AStdClassdef>*/;
+var_pclassdefnode1 = var44;
 var_node_list = var_pclassdefnode1;
-var42 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction124> */
-var43 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var42) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var43, var_node_list) /* push on <var_p:Parser>*/;
+var45 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction127> */
+var46 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var45) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var46, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction124#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction124__action(val* self, val* p0) {
-parser__ReduceAction124__action(self, p0);
+/* method parser#ReduceAction127#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction127__action(val* self, val* p0) {
+parser__ReduceAction127__action(self, p0);
 RET_LABEL:;
 }