X-Git-Url: http://nitlanguage.org

diff --git a/c_src/parser.sep.11.c b/c_src/parser.sep.11.c
index 9069ca7..738288e 100644
--- a/c_src/parser.sep.11.c
+++ b/c_src/parser.sep.11.c
@@ -1,32 +1,35 @@
 #include "parser.sep.0.h"
-/* method parser#ReduceAction409#action for (self: ReduceAction409, Parser) */
-void parser__ReduceAction409__action(val* self, val* p0) {
+/* method parser#ReduceAction417#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction417__action(val* self, val* p0) {
+parser__ReduceAction417__action(self, p0);
+RET_LABEL:;
+}
+/* method parser#ReduceAction418#action for (self: ReduceAction418, Parser) */
+void parser__ReduceAction418__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var11 /* : Bool */;
 int cltype12;
 int idtype13;
@@ -38,82 +41,87 @@ val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_tattridnode8 /* var tattridnode8: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
+val* var23 /* : AAttrPropdef */;
+val* var24 /* : null */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : 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_nodearraylist9 = var1;
+var_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var6;
 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) {
-var10 = 1;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var7 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18183);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18545);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist2;
+var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype12 = type_nullable_parser_nodes__AAble.color;
-idtype13 = type_nullable_parser_nodes__AAble.id;
+cltype9 = type_nullable_parser_nodes__AAble.color;
+idtype10 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
+var8 = 1;
+} else {
+if(cltype9 >= var_pablenode4->type->table_size) {
+var8 = 0;
+} else {
+var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
+}
+}
+if (!var8) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18547);
+show_backtrace(1);
+}
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
 var11 = 1;
 } else {
-if(cltype12 >= var_pablenode4->type->table_size) {
+if(cltype12 >= var_tkwredefnode5->type->table_size) {
 var11 = 0;
 } else {
-var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
+var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
 }
 }
 if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18185);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18549);
+show_backtrace(1);
 }
 var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
@@ -130,8 +138,8 @@ var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18187);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18551);
+show_backtrace(1);
 }
 var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
@@ -148,1338 +156,1224 @@ var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18189);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18553);
+show_backtrace(1);
 }
-var_tattridnode8 = var_nodearraylist5;
-/* <var_tattridnode8:nullable Object> isa nullable TAttrid */
-cltype21 = type_nullable_parser_nodes__TAttrid.color;
-idtype22 = type_nullable_parser_nodes__TAttrid.id;
-if(var_tattridnode8 == NULL) {
+var_tidnode9 = var_nodearraylist5;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype21 = type_nullable_parser_nodes__TId.color;
+idtype22 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var20 = 1;
 } else {
-if(cltype21 >= var_tattridnode8->type->table_size) {
+if(cltype21 >= var_tidnode9->type->table_size) {
 var20 = 0;
 } else {
-var20 = var_tattridnode8->type->type_table[cltype21] == idtype22;
+var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18191);
-exit(1);
-}
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype24 = type_nullable_parser_nodes__AType.color;
-idtype25 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var23 = 1;
-} else {
-if(cltype24 >= var_ptypenode10->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_ptypenode10->type->type_table[cltype24] == idtype25;
-}
-}
-if (!var23) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18193);
-exit(1);
-}
-var_pexprnode12 = var_nodearraylist9;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var26 = 1;
-} else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
-} else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
-}
-}
-if (!var26) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18195);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18555);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var31, var_pvisibilitynode6, var_tkwvarnode7, var_tattridnode8, var32, var_ptypenode10, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var24 = NULL;
+var25 = NULL;
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var25, var_tidnode9, var26, var27, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction409> */
-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>*/;
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction418> */
+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#ReduceAction409#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction409__action(val* self, val* p0) {
-parser__ReduceAction409__action(self, p0);
+/* method parser#ReduceAction418#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction418__action(val* self, val* p0) {
+parser__ReduceAction418__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction410#action for (self: ReduceAction410, Parser) */
-void parser__ReduceAction410__action(val* self, val* p0) {
+/* method parser#ReduceAction419#action for (self: ReduceAction419, Parser) */
+void parser__ReduceAction419__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_tattridnode8 /* var tattridnode8: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var23 /* : AAttrPropdef */;
+val* var24 /* : null */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : 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_nodearraylist10 = var1;
+var_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var6;
 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;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
+var7 = 0;
 } else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18229);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18585);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist2;
+var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype13 = type_nullable_parser_nodes__AAble.color;
-idtype14 = type_nullable_parser_nodes__AAble.id;
+cltype9 = type_nullable_parser_nodes__AAble.color;
+idtype10 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var12 = 1;
-} else {
-if(cltype13 >= var_pablenode4->type->table_size) {
-var12 = 0;
-} else {
-var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
-}
-}
-if (!var12) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18231);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist3;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var15 = 1;
+var8 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode5->type->table_size) {
-var15 = 0;
+if(cltype9 >= var_pablenode4->type->table_size) {
+var8 = 0;
 } else {
-var15 = var_tkwredefnode5->type->type_table[cltype16] == idtype17;
+var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var15) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18233);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18587);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist4;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
+cltype12 = type_nullable_parser_nodes__AVisibility.color;
+idtype13 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var18 = 1;
+var11 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode6->type->table_size) {
-var18 = 0;
+if(cltype12 >= var_pvisibilitynode6->type->table_size) {
+var11 = 0;
 } else {
-var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
+var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var18) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18235);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18589);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist5;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype22 = type_nullable_parser_nodes__TKwvar.color;
-idtype23 = type_nullable_parser_nodes__TKwvar.id;
+cltype15 = type_nullable_parser_nodes__TKwvar.color;
+idtype16 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var21 = 1;
+var14 = 1;
 } else {
-if(cltype22 >= var_tkwvarnode7->type->table_size) {
-var21 = 0;
+if(cltype15 >= var_tkwvarnode7->type->table_size) {
+var14 = 0;
 } else {
-var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
+var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var21) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18237);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18591);
+show_backtrace(1);
 }
-var_tattridnode8 = var_nodearraylist6;
-/* <var_tattridnode8:nullable Object> isa nullable TAttrid */
-cltype25 = type_nullable_parser_nodes__TAttrid.color;
-idtype26 = type_nullable_parser_nodes__TAttrid.id;
-if(var_tattridnode8 == NULL) {
-var24 = 1;
+var_tidnode9 = var_nodearraylist4;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype18 = type_nullable_parser_nodes__TId.color;
+idtype19 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
+var17 = 1;
 } else {
-if(cltype25 >= var_tattridnode8->type->table_size) {
-var24 = 0;
+if(cltype18 >= var_tidnode9->type->table_size) {
+var17 = 0;
 } else {
-var24 = var_tattridnode8->type->type_table[cltype25] == idtype26;
+var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var24) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18239);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18593);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist7;
+var_ptypenode10 = var_nodearraylist5;
 /* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype28 = type_nullable_parser_nodes__AType.color;
-idtype29 = type_nullable_parser_nodes__AType.id;
+cltype21 = type_nullable_parser_nodes__AType.color;
+idtype22 = type_nullable_parser_nodes__AType.id;
 if(var_ptypenode10 == NULL) {
-var27 = 1;
-} else {
-if(cltype28 >= var_ptypenode10->type->table_size) {
-var27 = 0;
-} else {
-var27 = var_ptypenode10->type->type_table[cltype28] == idtype29;
-}
-}
-if (!var27) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18241);
-exit(1);
-}
-var_pexprnode12 = var_nodearraylist10;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
+var20 = 1;
 } else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
+if(cltype21 >= var_ptypenode10->type->table_size) {
+var20 = 0;
 } else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+var20 = var_ptypenode10->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var30) {
+if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18243);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18595);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var_tattridnode8, var35, var_ptypenode10, var36, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var24 = NULL;
+var25 = NULL;
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var25, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var_ptypenode10, var27, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction410> */
-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>*/;
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction419> */
+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#ReduceAction410#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction410__action(val* self, val* p0) {
-parser__ReduceAction410__action(self, p0);
+/* method parser#ReduceAction419#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction419__action(val* self, val* p0) {
+parser__ReduceAction419__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction411#action for (self: ReduceAction411, Parser) */
-void parser__ReduceAction411__action(val* self, val* p0) {
+/* method parser#ReduceAction420#action for (self: ReduceAction420, Parser) */
+void parser__ReduceAction420__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* var2 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode3 /* var pablenode3: nullable Object */;
+val* var_pablenode4 /* var pablenode4: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var12 /* : Bool */;
 int cltype13;
 int idtype14;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var15 /* : Bool */;
 int cltype16;
 int idtype17;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var18 /* : Bool */;
 int cltype19;
 int idtype20;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var21 /* : Bool */;
 int cltype22;
 int idtype23;
-val* var_tattridnode8 /* var tattridnode8: nullable Object */;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
 short int var24 /* : Bool */;
 int cltype25;
 int idtype26;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
+val* var27 /* : AAttrPropdef */;
+val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : 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_nodearraylist10 = var1;
+var_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var7;
 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;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
+var8 = 0;
 } else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18277);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18626);
+show_backtrace(1);
 }
-var_pablenode3 = var_nodearraylist2;
-/* <var_pablenode3:nullable Object> isa nullable AAble */
-cltype13 = type_nullable_parser_nodes__AAble.color;
-idtype14 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode3 == NULL) {
+var_pablenode4 = var_nodearraylist7;
+/* <var_pablenode4:nullable Object> isa nullable AAble */
+cltype10 = type_nullable_parser_nodes__AAble.color;
+idtype11 = type_nullable_parser_nodes__AAble.id;
+if(var_pablenode4 == NULL) {
+var9 = 1;
+} else {
+if(cltype10 >= var_pablenode4->type->table_size) {
+var9 = 0;
+} else {
+var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
+}
+}
+if (!var9) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18628);
+show_backtrace(1);
+}
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype13 = type_nullable_parser_nodes__TKwredef.color;
+idtype14 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
 var12 = 1;
 } else {
-if(cltype13 >= var_pablenode3->type->table_size) {
+if(cltype13 >= var_tkwredefnode5->type->table_size) {
 var12 = 0;
 } else {
-var12 = var_pablenode3->type->type_table[cltype13] == idtype14;
+var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
 }
 }
 if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18279);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18630);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist3;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype16 = type_nullable_parser_nodes__AAble.color;
-idtype17 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_pablenode4->type->table_size) {
+if(cltype16 >= var_pvisibilitynode6->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_pablenode4->type->type_table[cltype16] == idtype17;
+var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18281);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18632);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist4;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype19 = type_nullable_parser_nodes__TKwvar.color;
+idtype20 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var18 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode6->type->table_size) {
+if(cltype19 >= var_tkwvarnode7->type->table_size) {
 var18 = 0;
 } else {
-var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
+var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18283);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18634);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist5;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype22 = type_nullable_parser_nodes__TKwvar.color;
-idtype23 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_tidnode9 = var_nodearraylist5;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype22 = type_nullable_parser_nodes__TId.color;
+idtype23 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var21 = 1;
 } else {
-if(cltype22 >= var_tkwvarnode7->type->table_size) {
+if(cltype22 >= var_tidnode9->type->table_size) {
 var21 = 0;
 } else {
-var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
+var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18285);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18636);
+show_backtrace(1);
 }
-var_tattridnode8 = var_nodearraylist6;
-/* <var_tattridnode8:nullable Object> isa nullable TAttrid */
-cltype25 = type_nullable_parser_nodes__TAttrid.color;
-idtype26 = type_nullable_parser_nodes__TAttrid.id;
-if(var_tattridnode8 == NULL) {
+var_ptypenode10 = var_nodearraylist6;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype25 = type_nullable_parser_nodes__AType.color;
+idtype26 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
 var24 = 1;
 } else {
-if(cltype25 >= var_tattridnode8->type->table_size) {
+if(cltype25 >= var_ptypenode10->type->table_size) {
 var24 = 0;
 } else {
-var24 = var_tattridnode8->type->type_table[cltype25] == idtype26;
+var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18287);
-exit(1);
-}
-var_ptypenode10 = var_nodearraylist7;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype28 = type_nullable_parser_nodes__AType.color;
-idtype29 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var27 = 1;
-} else {
-if(cltype28 >= var_ptypenode10->type->table_size) {
-var27 = 0;
-} else {
-var27 = var_ptypenode10->type->type_table[cltype28] == idtype29;
-}
-}
-if (!var27) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18289);
-exit(1);
-}
-var_pexprnode12 = var_nodearraylist10;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
-} else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
-} else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
-}
-}
-if (!var30) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18291);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18638);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var_pablenode3, var_pablenode4, var34, var_pvisibilitynode6, var_tkwvarnode7, var_tattridnode8, var35, var_ptypenode10, var36, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var28 = NULL;
+var29 = NULL;
+var30 = NULL;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var_ptypenode10, var30, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
+var_ppropdefnode1 = var27;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction411> */
-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>*/;
+var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction420> */
+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#ReduceAction411#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction411__action(val* self, val* p0) {
-parser__ReduceAction411__action(self, p0);
+/* method parser#ReduceAction420#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction420__action(val* self, val* p0) {
+parser__ReduceAction420__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction412#action for (self: ReduceAction412, Parser) */
-void parser__ReduceAction412__action(val* self, val* p0) {
+/* method parser#ReduceAction421#action for (self: ReduceAction421, Parser) */
+void parser__ReduceAction421__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* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var6 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var7 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var2 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var11 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var12 /* : Bool */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode3 /* var pablenode3: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+short int var7 /* : Bool */;
+int cltype8;
+int idtype9;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var_tattridnode8 /* var tattridnode8: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-val* var37 /* : AAttrPropdef */;
-val* var38 /* : null */;
-val* var39 /* : null */;
+val* var19 /* : AAttrPropdef */;
+val* var20 /* : null */;
+val* var21 /* : null */;
+val* var22 /* : null */;
+val* var23 /* : null */;
+val* var24 /* : null */;
+val* var25 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var40 /* : Int */;
-long var41 /* : Int */;
+long var26 /* : Int */;
+long var27 /* : 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_nodearraylist5 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist10 = var2;
+var_nodearraylist4 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var3;
+var_nodearraylist3 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var4;
+var_nodearraylist2 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var5;
-var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var6;
-var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = 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;
+var_nodearraylist1 = var5;
 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;
+var6 = 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", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18326);
-exit(1);
-}
-var_pablenode3 = var_nodearraylist2;
-/* <var_pablenode3:nullable Object> isa nullable AAble */
-cltype14 = type_nullable_parser_nodes__AAble.color;
-idtype15 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode3 == NULL) {
-var13 = 1;
-} else {
-if(cltype14 >= var_pablenode3->type->table_size) {
-var13 = 0;
+var6 = 0;
 } else {
-var13 = var_pablenode3->type->type_table[cltype14] == idtype15;
+var6 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var13) {
+if (!var6) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18328);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18667);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist3;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype17 = type_nullable_parser_nodes__AAble.color;
-idtype18 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var16 = 1;
+var_pvisibilitynode6 = var_nodearraylist2;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype8 = type_nullable_parser_nodes__AVisibility.color;
+idtype9 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var7 = 1;
 } else {
-if(cltype17 >= var_pablenode4->type->table_size) {
-var16 = 0;
+if(cltype8 >= var_pvisibilitynode6->type->table_size) {
+var7 = 0;
 } else {
-var16 = var_pablenode4->type->type_table[cltype17] == idtype18;
+var7 = var_pvisibilitynode6->type->type_table[cltype8] == idtype9;
 }
 }
-if (!var16) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18330);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18669);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist4;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype20 = type_nullable_parser_nodes__TKwredef.color;
-idtype21 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var19 = 1;
+var_tkwvarnode7 = var_nodearraylist3;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype11 = type_nullable_parser_nodes__TKwvar.color;
+idtype12 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
+var10 = 1;
 } else {
-if(cltype20 >= var_tkwredefnode5->type->table_size) {
-var19 = 0;
+if(cltype11 >= var_tkwvarnode7->type->table_size) {
+var10 = 0;
 } else {
-var19 = var_tkwredefnode5->type->type_table[cltype20] == idtype21;
+var10 = var_tkwvarnode7->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var19) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18332);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18671);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist5;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype23 = type_nullable_parser_nodes__AVisibility.color;
-idtype24 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var22 = 1;
+var_tidnode9 = var_nodearraylist4;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype14 = type_nullable_parser_nodes__TId.color;
+idtype15 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
+var13 = 1;
 } else {
-if(cltype23 >= var_pvisibilitynode6->type->table_size) {
-var22 = 0;
+if(cltype14 >= var_tidnode9->type->table_size) {
+var13 = 0;
 } else {
-var22 = var_pvisibilitynode6->type->type_table[cltype23] == idtype24;
+var13 = var_tidnode9->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var22) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18334);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18673);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist6;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype26 = type_nullable_parser_nodes__TKwvar.color;
-idtype27 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var25 = 1;
+var_pannotationsnode11 = var_nodearraylist5;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype17 = type_nullable_parser_nodes__AAnnotations.color;
+idtype18 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var16 = 1;
 } else {
-if(cltype26 >= var_tkwvarnode7->type->table_size) {
-var25 = 0;
+if(cltype17 >= var_pannotationsnode11->type->table_size) {
+var16 = 0;
 } else {
-var25 = var_tkwvarnode7->type->type_table[cltype26] == idtype27;
+var16 = var_pannotationsnode11->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var25) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18336);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18675);
+show_backtrace(1);
 }
-var_tattridnode8 = var_nodearraylist7;
-/* <var_tattridnode8:nullable Object> isa nullable TAttrid */
-cltype29 = type_nullable_parser_nodes__TAttrid.color;
-idtype30 = type_nullable_parser_nodes__TAttrid.id;
-if(var_tattridnode8 == NULL) {
-var28 = 1;
-} else {
-if(cltype29 >= var_tattridnode8->type->table_size) {
-var28 = 0;
-} else {
-var28 = var_tattridnode8->type->type_table[cltype29] == idtype30;
-}
-}
-if (!var28) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18338);
-exit(1);
-}
-var_ptypenode10 = var_nodearraylist8;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype32 = type_nullable_parser_nodes__AType.color;
-idtype33 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var31 = 1;
-} else {
-if(cltype32 >= var_ptypenode10->type->table_size) {
-var31 = 0;
-} else {
-var31 = var_ptypenode10->type->type_table[cltype32] == idtype33;
-}
-}
-if (!var31) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18340);
-exit(1);
-}
-var_pexprnode12 = var_nodearraylist11;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype35 = type_nullable_parser_nodes__AExpr.color;
-idtype36 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var34 = 1;
-} else {
-if(cltype35 >= var_pexprnode12->type->table_size) {
-var34 = 0;
-} else {
-var34 = var_pexprnode12->type->type_table[cltype35] == idtype36;
-}
-}
-if (!var34) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18342);
-exit(1);
-}
-var37 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var38 = NULL;
-var39 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var37, var_pdocnode2, var_pablenode3, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var_tattridnode8, var38, var_ptypenode10, var39, var_pexprnode12) /* init_aattrpropdef on <var37:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var37);
-var_ppropdefnode1 = var37;
+var19 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var20 = NULL;
+var21 = NULL;
+var22 = NULL;
+var23 = NULL;
+var24 = NULL;
+var25 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var19, var_pdocnode2, var20, var21, var22, var_pvisibilitynode6, var_tkwvarnode7, var23, var_tidnode9, var24, var_pannotationsnode11, var25) /* init_aattrpropdef on <var19:AAttrPropdef>*/;
+var_ppropdefnode1 = var19;
 var_node_list = var_ppropdefnode1;
-var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction412> */
-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>*/;
+var26 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction421> */
+var27 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var26) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var27, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction412#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction412__action(val* self, val* p0) {
-parser__ReduceAction412__action(self, p0);
+/* method parser#ReduceAction421#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction421__action(val* self, val* p0) {
+parser__ReduceAction421__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction413#action for (self: ReduceAction413, Parser) */
-void parser__ReduceAction413__action(val* self, val* p0) {
+/* method parser#ReduceAction422#action for (self: ReduceAction422, Parser) */
+void parser__ReduceAction422__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_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var5 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var6 /* : Bool */;
-int cltype7;
-int idtype8;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var15 /* : AAttrPropdef */;
-val* var16 /* : null */;
-val* var17 /* : null */;
-val* var18 /* : null */;
-val* var19 /* : null */;
-val* var20 /* : null */;
-val* var21 /* : null */;
-val* var22 /* : null */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var23 /* : AAttrPropdef */;
+val* var24 /* : null */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var23 /* : Int */;
-long var24 /* : 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_nodearraylist4 = var1;
+var_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var4;
+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_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) {
-var5 = 1;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var5 = 0;
+var7 = 0;
 } else {
-var5 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var5) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18370);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18705);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype9 = type_nullable_parser_nodes__TKwredef.color;
+idtype10 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var8 = 1;
+} else {
+if(cltype9 >= var_tkwredefnode5->type->table_size) {
+var8 = 0;
+} else {
+var8 = var_tkwredefnode5->type->type_table[cltype9] == idtype10;
+}
+}
+if (!var8) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18707);
+show_backtrace(1);
+}
+var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype7 = type_nullable_parser_nodes__AVisibility.color;
-idtype8 = type_nullable_parser_nodes__AVisibility.id;
+cltype12 = type_nullable_parser_nodes__AVisibility.color;
+idtype13 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var6 = 1;
+var11 = 1;
 } else {
-if(cltype7 >= var_pvisibilitynode6->type->table_size) {
-var6 = 0;
+if(cltype12 >= var_pvisibilitynode6->type->table_size) {
+var11 = 0;
 } else {
-var6 = var_pvisibilitynode6->type->type_table[cltype7] == idtype8;
+var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var6) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18372);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18709);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype10 = type_nullable_parser_nodes__TKwvar.color;
-idtype11 = type_nullable_parser_nodes__TKwvar.id;
+cltype15 = type_nullable_parser_nodes__TKwvar.color;
+idtype16 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var9 = 1;
+var14 = 1;
 } else {
-if(cltype10 >= var_tkwvarnode7->type->table_size) {
-var9 = 0;
+if(cltype15 >= var_tkwvarnode7->type->table_size) {
+var14 = 0;
 } else {
-var9 = var_tkwvarnode7->type->type_table[cltype10] == idtype11;
+var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var9) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18374);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18711);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype13 = type_nullable_parser_nodes__TId.color;
-idtype14 = type_nullable_parser_nodes__TId.id;
+cltype18 = type_nullable_parser_nodes__TId.color;
+idtype19 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var12 = 1;
+var17 = 1;
 } else {
-if(cltype13 >= var_tidnode9->type->table_size) {
-var12 = 0;
+if(cltype18 >= var_tidnode9->type->table_size) {
+var17 = 0;
 } else {
-var12 = var_tidnode9->type->type_table[cltype13] == idtype14;
+var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var12) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18376);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18713);
+show_backtrace(1);
 }
-var15 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var16 = NULL;
-var17 = NULL;
-var18 = NULL;
-var19 = NULL;
-var20 = NULL;
-var21 = NULL;
-var22 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var15->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var15, var_pdocnode2, var16, var17, var18, var_pvisibilitynode6, var_tkwvarnode7, var19, var_tidnode9, var20, var21, var22) /* init_aattrpropdef on <var15:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var15);
-var_ppropdefnode1 = var15;
+var_pannotationsnode11 = var_nodearraylist6;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype21 = type_nullable_parser_nodes__AAnnotations.color;
+idtype22 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_pannotationsnode11->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18715);
+show_backtrace(1);
+}
+var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var24 = NULL;
+var25 = NULL;
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var25, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var27, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var23 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction413> */
-var24 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var23) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var24, var_node_list) /* push on <var_p:Parser>*/;
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction422> */
+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#ReduceAction413#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction413__action(val* self, val* p0) {
-parser__ReduceAction413__action(self, p0);
+/* method parser#ReduceAction422#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction422__action(val* self, val* p0) {
+parser__ReduceAction422__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction414#action for (self: ReduceAction414, Parser) */
-void parser__ReduceAction414__action(val* self, val* p0) {
+/* method parser#ReduceAction423#action for (self: ReduceAction423, Parser) */
+void parser__ReduceAction423__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_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var6 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var7 /* : Bool */;
-int cltype8;
-int idtype9;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var19 /* : AAttrPropdef */;
-val* var20 /* : null */;
-val* var21 /* : null */;
-val* var22 /* : null */;
-val* var23 /* : null */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var26 /* : Int */;
-long var27 /* : 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_nodearraylist5 = var1;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var23 /* : AAttrPropdef */;
+val* var24 /* : null */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
+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_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var5;
+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_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) {
-var6 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var6) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18405);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype8 = type_nullable_parser_nodes__TKwredef.color;
-idtype9 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
 var7 = 1;
 } else {
-if(cltype8 >= var_tkwredefnode5->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var7 = 0;
 } else {
-var7 = var_tkwredefnode5->type->type_table[cltype8] == idtype9;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18407);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18745);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
+cltype9 = type_nullable_parser_nodes__AVisibility.color;
+idtype10 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var10 = 1;
+var8 = 1;
 } else {
-if(cltype11 >= var_pvisibilitynode6->type->table_size) {
-var10 = 0;
+if(cltype9 >= var_pvisibilitynode6->type->table_size) {
+var8 = 0;
 } else {
-var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
+var8 = var_pvisibilitynode6->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var10) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18409);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18747);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype14 = type_nullable_parser_nodes__TKwvar.color;
-idtype15 = type_nullable_parser_nodes__TKwvar.id;
+cltype12 = type_nullable_parser_nodes__TKwvar.color;
+idtype13 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var13 = 1;
+var11 = 1;
 } else {
-if(cltype14 >= var_tkwvarnode7->type->table_size) {
-var13 = 0;
+if(cltype12 >= var_tkwvarnode7->type->table_size) {
+var11 = 0;
 } else {
-var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
+var11 = var_tkwvarnode7->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var13) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18411);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18749);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype17 = type_nullable_parser_nodes__TId.color;
-idtype18 = type_nullable_parser_nodes__TId.id;
+cltype15 = type_nullable_parser_nodes__TId.color;
+idtype16 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var16 = 1;
+var14 = 1;
 } else {
-if(cltype17 >= var_tidnode9->type->table_size) {
-var16 = 0;
+if(cltype15 >= var_tidnode9->type->table_size) {
+var14 = 0;
 } else {
-var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
+var14 = var_tidnode9->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var16) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18413);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18751);
+show_backtrace(1);
 }
-var19 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var20 = NULL;
-var21 = NULL;
-var22 = NULL;
-var23 = NULL;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype18 = type_nullable_parser_nodes__AType.color;
+idtype19 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_ptypenode10->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_ptypenode10->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18753);
+show_backtrace(1);
+}
+var_pannotationsnode11 = var_nodearraylist6;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype21 = type_nullable_parser_nodes__AAnnotations.color;
+idtype22 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_pannotationsnode11->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18755);
+show_backtrace(1);
+}
+var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var24 = NULL;
 var25 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var19, var_pdocnode2, var20, var21, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var22, var_tidnode9, var23, var24, var25) /* init_aattrpropdef on <var19:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var19);
-var_ppropdefnode1 = var19;
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var25, var26, var_pvisibilitynode6, var_tkwvarnode7, var27, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var26 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction414> */
-var27 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var26) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var27, var_node_list) /* push on <var_p:Parser>*/;
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction423> */
+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#ReduceAction414#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction414__action(val* self, val* p0) {
-parser__ReduceAction414__action(self, p0);
+/* method parser#ReduceAction423#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction423__action(val* self, val* p0) {
+parser__ReduceAction423__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction415#action for (self: ReduceAction415, Parser) */
-void parser__ReduceAction415__action(val* self, val* p0) {
+/* method parser#ReduceAction424#action for (self: ReduceAction424, Parser) */
+void parser__ReduceAction424__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_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var5 /* : nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var6 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var6 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var7 /* : Bool */;
-int cltype8;
-int idtype9;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var19 /* : AAttrPropdef */;
-val* var20 /* : null */;
-val* var21 /* : null */;
-val* var22 /* : null */;
-val* var23 /* : null */;
-val* var24 /* : null */;
-val* var25 /* : null */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : AAttrPropdef */;
+val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var26 /* : Int */;
-long var27 /* : 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_nodearraylist5 = var1;
+var_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var5;
+var_nodearraylist3 = var5;
+var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist2 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var7;
 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) {
-var6 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var6 = 0;
+var8 = 0;
 } else {
-var6 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var6) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18442);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18786);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype8 = type_nullable_parser_nodes__AVisibility.color;
-idtype9 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var7 = 1;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype10 = type_nullable_parser_nodes__TKwredef.color;
+idtype11 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var9 = 1;
 } else {
-if(cltype8 >= var_pvisibilitynode6->type->table_size) {
-var7 = 0;
+if(cltype10 >= var_tkwredefnode5->type->table_size) {
+var9 = 0;
 } else {
-var7 = var_pvisibilitynode6->type->type_table[cltype8] == idtype9;
+var9 = var_tkwredefnode5->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var7) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18444);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18788);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype13 = type_nullable_parser_nodes__AVisibility.color;
+idtype14 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var12 = 1;
+} else {
+if(cltype13 >= var_pvisibilitynode6->type->table_size) {
+var12 = 0;
+} else {
+var12 = var_pvisibilitynode6->type->type_table[cltype13] == idtype14;
+}
+}
+if (!var12) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18790);
+show_backtrace(1);
+}
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype11 = type_nullable_parser_nodes__TKwvar.color;
-idtype12 = type_nullable_parser_nodes__TKwvar.id;
+cltype16 = type_nullable_parser_nodes__TKwvar.color;
+idtype17 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var10 = 1;
+var15 = 1;
 } else {
-if(cltype11 >= var_tkwvarnode7->type->table_size) {
-var10 = 0;
+if(cltype16 >= var_tkwvarnode7->type->table_size) {
+var15 = 0;
 } else {
-var10 = var_tkwvarnode7->type->type_table[cltype11] == idtype12;
+var15 = var_tkwvarnode7->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var10) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18446);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18792);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype14 = type_nullable_parser_nodes__TId.color;
-idtype15 = type_nullable_parser_nodes__TId.id;
+cltype19 = type_nullable_parser_nodes__TId.color;
+idtype20 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var13 = 1;
+var18 = 1;
 } else {
-if(cltype14 >= var_tidnode9->type->table_size) {
-var13 = 0;
+if(cltype19 >= var_tidnode9->type->table_size) {
+var18 = 0;
 } else {
-var13 = var_tidnode9->type->type_table[cltype14] == idtype15;
+var18 = var_tidnode9->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var13) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18448);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18794);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
+var_ptypenode10 = var_nodearraylist6;
 /* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype17 = type_nullable_parser_nodes__AType.color;
-idtype18 = type_nullable_parser_nodes__AType.id;
+cltype22 = type_nullable_parser_nodes__AType.color;
+idtype23 = type_nullable_parser_nodes__AType.id;
 if(var_ptypenode10 == NULL) {
-var16 = 1;
+var21 = 1;
 } else {
-if(cltype17 >= var_ptypenode10->type->table_size) {
-var16 = 0;
+if(cltype22 >= var_ptypenode10->type->table_size) {
+var21 = 0;
 } else {
-var16 = var_ptypenode10->type->type_table[cltype17] == idtype18;
+var21 = var_ptypenode10->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var16) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18450);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18796);
+show_backtrace(1);
 }
-var19 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var20 = NULL;
-var21 = NULL;
-var22 = NULL;
-var23 = NULL;
-var24 = NULL;
-var25 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var19, var_pdocnode2, var20, var21, var22, var_pvisibilitynode6, var_tkwvarnode7, var23, var_tidnode9, var_ptypenode10, var24, var25) /* init_aattrpropdef on <var19:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var19);
-var_ppropdefnode1 = var19;
+var_pannotationsnode11 = var_nodearraylist7;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype25 = type_nullable_parser_nodes__AAnnotations.color;
+idtype26 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var24 = 1;
+} else {
+if(cltype25 >= var_pannotationsnode11->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
+}
+}
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18798);
+show_backtrace(1);
+}
+var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var28 = NULL;
+var29 = NULL;
+var30 = NULL;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var29, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var30, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
+var_ppropdefnode1 = var27;
 var_node_list = var_ppropdefnode1;
-var26 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction415> */
-var27 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var26) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var27, var_node_list) /* push on <var_p:Parser>*/;
+var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction424> */
+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#ReduceAction415#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction415__action(val* self, val* p0) {
-parser__ReduceAction415__action(self, p0);
+/* method parser#ReduceAction424#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction424__action(val* self, val* p0) {
+parser__ReduceAction424__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction416#action for (self: ReduceAction416, Parser) */
-void parser__ReduceAction416__action(val* self, val* p0) {
+/* method parser#ReduceAction425#action for (self: ReduceAction425, Parser) */
+void parser__ReduceAction425__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
@@ -1499,7 +1393,7 @@ val* var_pdocnode2 /* var pdocnode2: nullable Object */;
 short int var7 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+val* var_pablenode4 /* var pablenode4: nullable Object */;
 short int var8 /* : Bool */;
 int cltype9;
 int idtype10;
@@ -1515,7 +1409,7 @@ val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
@@ -1558,28 +1452,28 @@ var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18480);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18828);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype9 = type_nullable_parser_nodes__TKwredef.color;
-idtype10 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
+var_pablenode4 = var_nodearraylist5;
+/* <var_pablenode4:nullable Object> isa nullable AAble */
+cltype9 = type_nullable_parser_nodes__AAble.color;
+idtype10 = type_nullable_parser_nodes__AAble.id;
+if(var_pablenode4 == NULL) {
 var8 = 1;
 } else {
-if(cltype9 >= var_tkwredefnode5->type->table_size) {
+if(cltype9 >= var_pablenode4->type->table_size) {
 var8 = 0;
 } else {
-var8 = var_tkwredefnode5->type->type_table[cltype9] == idtype10;
+var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
 }
 }
 if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18482);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18830);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
 cltype12 = type_nullable_parser_nodes__AVisibility.color;
 idtype13 = type_nullable_parser_nodes__AVisibility.id;
@@ -1594,10 +1488,10 @@ var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
 }
 if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18484);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18832);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
 cltype15 = type_nullable_parser_nodes__TKwvar.color;
 idtype16 = type_nullable_parser_nodes__TKwvar.id;
@@ -1612,10 +1506,10 @@ var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18486);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18834);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
 cltype18 = type_nullable_parser_nodes__TId.color;
 idtype19 = type_nullable_parser_nodes__TId.id;
@@ -1630,26 +1524,26 @@ var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18488);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18836);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype21 = type_nullable_parser_nodes__AType.color;
-idtype22 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
+var_pannotationsnode11 = var_nodearraylist6;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype21 = type_nullable_parser_nodes__AAnnotations.color;
+idtype22 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
 var20 = 1;
 } else {
-if(cltype21 >= var_ptypenode10->type->table_size) {
+if(cltype21 >= var_pannotationsnode11->type->table_size) {
 var20 = 0;
 } else {
-var20 = var_ptypenode10->type->type_table[cltype21] == idtype22;
+var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18490);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18838);
+show_backtrace(1);
 }
 var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var24 = NULL;
@@ -1657,577 +1551,693 @@ var25 = NULL;
 var26 = NULL;
 var27 = NULL;
 var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var25, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var_ptypenode10, var27, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var25, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var27, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
 var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction416> */
+var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction425> */
 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#ReduceAction416#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction416__action(val* self, val* p0) {
-parser__ReduceAction416__action(self, p0);
+/* method parser#ReduceAction425#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction425__action(val* self, val* p0) {
+parser__ReduceAction425__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction417#action for (self: ReduceAction417, Parser) */
-void parser__ReduceAction417__action(val* self, val* p0) {
+/* method parser#ReduceAction426#action for (self: ReduceAction426, Parser) */
+void parser__ReduceAction426__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_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var5 /* : nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var6 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var6 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var7 /* : Bool */;
-int cltype8;
-int idtype9;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var19 /* : AAttrPropdef */;
-val* var20 /* : null */;
-val* var21 /* : null */;
-val* var22 /* : null */;
-val* var23 /* : null */;
-val* var24 /* : null */;
-val* var25 /* : null */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : AAttrPropdef */;
+val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var26 /* : Int */;
-long var27 /* : 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_nodearraylist5 = var1;
+var_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var5;
+var_nodearraylist3 = var5;
+var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist2 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var7;
 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) {
-var6 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var6 = 0;
+var8 = 0;
 } else {
-var6 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var6) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18519);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18869);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist5;
+var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype8 = type_nullable_parser_nodes__AAble.color;
-idtype9 = type_nullable_parser_nodes__AAble.id;
+cltype10 = type_nullable_parser_nodes__AAble.color;
+idtype11 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var7 = 1;
+var9 = 1;
 } else {
-if(cltype8 >= var_pablenode4->type->table_size) {
-var7 = 0;
+if(cltype10 >= var_pablenode4->type->table_size) {
+var9 = 0;
 } else {
-var7 = var_pablenode4->type->type_table[cltype8] == idtype9;
+var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var7) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18521);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18871);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var10 = 1;
-} else {
-if(cltype11 >= var_pvisibilitynode6->type->table_size) {
-var10 = 0;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype13 = type_nullable_parser_nodes__TKwredef.color;
+idtype14 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var12 = 1;
 } else {
-var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
+if(cltype13 >= var_tkwredefnode5->type->table_size) {
+var12 = 0;
+} else {
+var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var10) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18523);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18873);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var15 = 1;
+} else {
+if(cltype16 >= var_pvisibilitynode6->type->table_size) {
+var15 = 0;
+} else {
+var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
+}
+}
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18875);
+show_backtrace(1);
+}
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype14 = type_nullable_parser_nodes__TKwvar.color;
-idtype15 = type_nullable_parser_nodes__TKwvar.id;
+cltype19 = type_nullable_parser_nodes__TKwvar.color;
+idtype20 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var13 = 1;
+var18 = 1;
 } else {
-if(cltype14 >= var_tkwvarnode7->type->table_size) {
-var13 = 0;
+if(cltype19 >= var_tkwvarnode7->type->table_size) {
+var18 = 0;
 } else {
-var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
+var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var13) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18525);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18877);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype17 = type_nullable_parser_nodes__TId.color;
-idtype18 = type_nullable_parser_nodes__TId.id;
+cltype22 = type_nullable_parser_nodes__TId.color;
+idtype23 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var16 = 1;
+var21 = 1;
 } else {
-if(cltype17 >= var_tidnode9->type->table_size) {
-var16 = 0;
+if(cltype22 >= var_tidnode9->type->table_size) {
+var21 = 0;
 } else {
-var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
+var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var16) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18527);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18879);
+show_backtrace(1);
 }
-var19 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var20 = NULL;
-var21 = NULL;
-var22 = NULL;
-var23 = NULL;
-var24 = NULL;
-var25 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var19, var_pdocnode2, var20, var_pablenode4, var21, var_pvisibilitynode6, var_tkwvarnode7, var22, var_tidnode9, var23, var24, var25) /* init_aattrpropdef on <var19:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var19);
-var_ppropdefnode1 = var19;
+var_pannotationsnode11 = var_nodearraylist7;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype25 = type_nullable_parser_nodes__AAnnotations.color;
+idtype26 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var24 = 1;
+} else {
+if(cltype25 >= var_pannotationsnode11->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
+}
+}
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18881);
+show_backtrace(1);
+}
+var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var28 = NULL;
+var29 = NULL;
+var30 = NULL;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var30, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
+var_ppropdefnode1 = var27;
 var_node_list = var_ppropdefnode1;
-var26 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction417> */
-var27 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var26) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var27, var_node_list) /* push on <var_p:Parser>*/;
+var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction426> */
+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#ReduceAction417#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction417__action(val* self, val* p0) {
-parser__ReduceAction417__action(self, p0);
+/* method parser#ReduceAction426#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction426__action(val* self, val* p0) {
+parser__ReduceAction426__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction418#action for (self: ReduceAction418, Parser) */
-void parser__ReduceAction418__action(val* self, val* p0) {
+/* method parser#ReduceAction427#action for (self: ReduceAction427, Parser) */
+void parser__ReduceAction427__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* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
 val* var6 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var23 /* : AAttrPropdef */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var26 /* : null */;
-val* var27 /* : null */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : AAttrPropdef */;
 val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var31 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var29 /* : Int */;
-long var30 /* : 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_nodearraylist6 = var1;
+var_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+var_nodearraylist2 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var7;
 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) {
-var7 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
+var8 = 0;
 } else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var7) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18557);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18912);
+show_backtrace(1);
 }
 var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype9 = type_nullable_parser_nodes__AAble.color;
-idtype10 = type_nullable_parser_nodes__AAble.id;
+cltype10 = type_nullable_parser_nodes__AAble.color;
+idtype11 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var8 = 1;
-} else {
-if(cltype9 >= var_pablenode4->type->table_size) {
-var8 = 0;
-} else {
-var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
-}
-}
-if (!var8) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18559);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype12 = type_nullable_parser_nodes__TKwredef.color;
-idtype13 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var11 = 1;
+var9 = 1;
 } else {
-if(cltype12 >= var_tkwredefnode5->type->table_size) {
-var11 = 0;
+if(cltype10 >= var_pablenode4->type->table_size) {
+var9 = 0;
 } else {
-var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
+var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var11) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18561);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18914);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
+cltype13 = type_nullable_parser_nodes__AVisibility.color;
+idtype14 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var14 = 1;
+var12 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode6->type->table_size) {
-var14 = 0;
+if(cltype13 >= var_pvisibilitynode6->type->table_size) {
+var12 = 0;
 } else {
-var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
+var12 = var_pvisibilitynode6->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var14) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18563);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18916);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype18 = type_nullable_parser_nodes__TKwvar.color;
-idtype19 = type_nullable_parser_nodes__TKwvar.id;
+cltype16 = type_nullable_parser_nodes__TKwvar.color;
+idtype17 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var17 = 1;
+var15 = 1;
 } else {
-if(cltype18 >= var_tkwvarnode7->type->table_size) {
-var17 = 0;
+if(cltype16 >= var_tkwvarnode7->type->table_size) {
+var15 = 0;
 } else {
-var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
+var15 = var_tkwvarnode7->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var17) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18565);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18918);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype21 = type_nullable_parser_nodes__TId.color;
-idtype22 = type_nullable_parser_nodes__TId.id;
+cltype19 = type_nullable_parser_nodes__TId.color;
+idtype20 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var20 = 1;
+var18 = 1;
 } else {
-if(cltype21 >= var_tidnode9->type->table_size) {
-var20 = 0;
+if(cltype19 >= var_tidnode9->type->table_size) {
+var18 = 0;
 } else {
-var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
+var18 = var_tidnode9->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var20) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18567);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18920);
+show_backtrace(1);
 }
-var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var24 = NULL;
-var25 = NULL;
-var26 = NULL;
-var27 = NULL;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype22 = type_nullable_parser_nodes__AType.color;
+idtype23 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var21 = 1;
+} else {
+if(cltype22 >= var_ptypenode10->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_ptypenode10->type->type_table[cltype22] == idtype23;
+}
+}
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18922);
+show_backtrace(1);
+}
+var_pannotationsnode11 = var_nodearraylist7;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype25 = type_nullable_parser_nodes__AAnnotations.color;
+idtype26 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var24 = 1;
+} else {
+if(cltype25 >= var_pannotationsnode11->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
+}
+}
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18924);
+show_backtrace(1);
+}
+var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var25, var_tidnode9, var26, var27, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
-var_ppropdefnode1 = var23;
+var29 = NULL;
+var30 = NULL;
+var31 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var29, var_pvisibilitynode6, var_tkwvarnode7, var30, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
+var_ppropdefnode1 = var27;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction418> */
-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>*/;
+var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction427> */
+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#ReduceAction418#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction418__action(val* self, val* p0) {
-parser__ReduceAction418__action(self, p0);
+/* method parser#ReduceAction427#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction427__action(val* self, val* p0) {
+parser__ReduceAction427__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction419#action for (self: ReduceAction419, Parser) */
-void parser__ReduceAction419__action(val* self, val* p0) {
+/* method parser#ReduceAction428#action for (self: ReduceAction428, Parser) */
+void parser__ReduceAction428__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* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var23 /* : AAttrPropdef */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+val* var31 /* : AAttrPropdef */;
+val* var32 /* : null */;
+val* var33 /* : null */;
+val* var34 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var29 /* : Int */;
-long var30 /* : 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_nodearraylist6 = var1;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+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;
 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) {
-var7 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
+var9 = 0;
 } else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var7) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18597);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18956);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist6;
+var_pablenode4 = var_nodearraylist7;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype9 = type_nullable_parser_nodes__AAble.color;
-idtype10 = type_nullable_parser_nodes__AAble.id;
+cltype11 = type_nullable_parser_nodes__AAble.color;
+idtype12 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var8 = 1;
+var10 = 1;
 } else {
-if(cltype9 >= var_pablenode4->type->table_size) {
-var8 = 0;
+if(cltype11 >= var_pablenode4->type->table_size) {
+var10 = 0;
 } else {
-var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
+var10 = var_pablenode4->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18599);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18958);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype14 = type_nullable_parser_nodes__TKwredef.color;
+idtype15 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var13 = 1;
+} else {
+if(cltype14 >= var_tkwredefnode5->type->table_size) {
+var13 = 0;
+} else {
+var13 = var_tkwredefnode5->type->type_table[cltype14] == idtype15;
+}
+}
+if (!var13) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18960);
+show_backtrace(1);
+}
+var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype12 = type_nullable_parser_nodes__AVisibility.color;
-idtype13 = type_nullable_parser_nodes__AVisibility.id;
+cltype17 = type_nullable_parser_nodes__AVisibility.color;
+idtype18 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var11 = 1;
+var16 = 1;
 } else {
-if(cltype12 >= var_pvisibilitynode6->type->table_size) {
-var11 = 0;
+if(cltype17 >= var_pvisibilitynode6->type->table_size) {
+var16 = 0;
 } else {
-var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
+var16 = var_pvisibilitynode6->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var11) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18601);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18962);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype15 = type_nullable_parser_nodes__TKwvar.color;
-idtype16 = type_nullable_parser_nodes__TKwvar.id;
+cltype20 = type_nullable_parser_nodes__TKwvar.color;
+idtype21 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var14 = 1;
+var19 = 1;
 } else {
-if(cltype15 >= var_tkwvarnode7->type->table_size) {
-var14 = 0;
+if(cltype20 >= var_tkwvarnode7->type->table_size) {
+var19 = 0;
 } else {
-var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
+var19 = var_tkwvarnode7->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var14) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18603);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18964);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype18 = type_nullable_parser_nodes__TId.color;
-idtype19 = type_nullable_parser_nodes__TId.id;
+cltype23 = type_nullable_parser_nodes__TId.color;
+idtype24 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var17 = 1;
+var22 = 1;
 } else {
-if(cltype18 >= var_tidnode9->type->table_size) {
-var17 = 0;
+if(cltype23 >= var_tidnode9->type->table_size) {
+var22 = 0;
 } else {
-var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
+var22 = var_tidnode9->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var17) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18605);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18966);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
+var_ptypenode10 = var_nodearraylist6;
 /* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype21 = type_nullable_parser_nodes__AType.color;
-idtype22 = type_nullable_parser_nodes__AType.id;
+cltype26 = type_nullable_parser_nodes__AType.color;
+idtype27 = type_nullable_parser_nodes__AType.id;
 if(var_ptypenode10 == NULL) {
-var20 = 1;
+var25 = 1;
 } else {
-if(cltype21 >= var_ptypenode10->type->table_size) {
-var20 = 0;
+if(cltype26 >= var_ptypenode10->type->table_size) {
+var25 = 0;
 } else {
-var20 = var_ptypenode10->type->type_table[cltype21] == idtype22;
+var25 = var_ptypenode10->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var20) {
+if (!var25) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18607);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18968);
+show_backtrace(1);
 }
-var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var24 = NULL;
-var25 = NULL;
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var25, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var_ptypenode10, var27, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
-var_ppropdefnode1 = var23;
+var_pannotationsnode11 = var_nodearraylist8;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype29 = type_nullable_parser_nodes__AAnnotations.color;
+idtype30 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var28 = 1;
+} else {
+if(cltype29 >= var_pannotationsnode11->type->table_size) {
+var28 = 0;
+} else {
+var28 = var_pannotationsnode11->type->type_table[cltype29] == idtype30;
+}
+}
+if (!var28) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18970);
+show_backtrace(1);
+}
+var31 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+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__AAttrPropdef__init_aattrpropdef]))(var31, var_pdocnode2, var32, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var33, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var34) /* init_aattrpropdef on <var31:AAttrPropdef>*/;
+var_ppropdefnode1 = var31;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction419> */
-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>*/;
+var35 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction428> */
+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#ReduceAction419#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction419__action(val* self, val* p0) {
-parser__ReduceAction419__action(self, p0);
+/* method parser#ReduceAction428#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction428__action(val* self, val* p0) {
+parser__ReduceAction428__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction420#action for (self: ReduceAction420, Parser) */
-void parser__ReduceAction420__action(val* self, val* p0) {
+/* method parser#ReduceAction429#action for (self: ReduceAction429, Parser) */
+void parser__ReduceAction429__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
@@ -2249,38 +2259,32 @@ val* var_pdocnode2 /* var pdocnode2: nullable Object */;
 short int var8 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var9 /* : Bool */;
 int cltype10;
 int idtype11;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var12 /* : Bool */;
 int cltype13;
 int idtype14;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var15 /* : Bool */;
 int cltype16;
 int idtype17;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
 short int var18 /* : Bool */;
 int cltype19;
 int idtype20;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : AAttrPropdef */;
-val* var28 /* : null */;
-val* var29 /* : null */;
-val* var30 /* : null */;
-val* var31 /* : null */;
+val* var21 /* : AAttrPropdef */;
+val* var22 /* : null */;
+val* var23 /* : null */;
+val* var24 /* : null */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var27 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var32 /* : Int */;
-long var33 /* : Int */;
+long var28 /* : Int */;
+long var29 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
@@ -2313,1537 +2317,1623 @@ var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18638);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19001);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist7;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype10 = type_nullable_parser_nodes__AAble.color;
-idtype11 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist2;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype10 = type_nullable_parser_nodes__AVisibility.color;
+idtype11 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var9 = 1;
 } else {
-if(cltype10 >= var_pablenode4->type->table_size) {
+if(cltype10 >= var_pvisibilitynode6->type->table_size) {
 var9 = 0;
 } else {
-var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
+var9 = var_pvisibilitynode6->type->type_table[cltype10] == idtype11;
 }
 }
 if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18640);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19003);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype13 = type_nullable_parser_nodes__TKwredef.color;
-idtype14 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
+var_tkwvarnode7 = var_nodearraylist3;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype13 = type_nullable_parser_nodes__TKwvar.color;
+idtype14 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var12 = 1;
 } else {
-if(cltype13 >= var_tkwredefnode5->type->table_size) {
+if(cltype13 >= var_tkwvarnode7->type->table_size) {
 var12 = 0;
 } else {
-var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
+var12 = var_tkwvarnode7->type->type_table[cltype13] == idtype14;
 }
 }
 if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18642);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19005);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
+var_tidnode9 = var_nodearraylist4;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype16 = type_nullable_parser_nodes__TId.color;
+idtype17 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode6->type->table_size) {
+if(cltype16 >= var_tidnode9->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
+var15 = var_tidnode9->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18644);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19007);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype19 = type_nullable_parser_nodes__TKwvar.color;
-idtype20 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_pexprnode12 = var_nodearraylist7;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype19 = type_nullable_parser_nodes__AExpr.color;
+idtype20 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
 var18 = 1;
 } else {
-if(cltype19 >= var_tkwvarnode7->type->table_size) {
+if(cltype19 >= var_pexprnode12->type->table_size) {
 var18 = 0;
 } else {
-var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
+var18 = var_pexprnode12->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18646);
-exit(1);
-}
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype22 = type_nullable_parser_nodes__TId.color;
-idtype23 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var21 = 1;
-} else {
-if(cltype22 >= var_tidnode9->type->table_size) {
-var21 = 0;
-} else {
-var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
-}
-}
-if (!var21) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18648);
-exit(1);
-}
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype25 = type_nullable_parser_nodes__AType.color;
-idtype26 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var24 = 1;
-} else {
-if(cltype25 >= var_ptypenode10->type->table_size) {
-var24 = 0;
-} else {
-var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
-}
-}
-if (!var24) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18650);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19009);
+show_backtrace(1);
 }
-var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var_ptypenode10, var30, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var27);
-var_ppropdefnode1 = var27;
+var21 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var22 = NULL;
+var23 = NULL;
+var24 = NULL;
+var25 = NULL;
+var26 = NULL;
+var27 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var21->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var21, var_pdocnode2, var22, var23, var24, var_pvisibilitynode6, var_tkwvarnode7, var25, var_tidnode9, var26, var27, var_pexprnode12) /* init_aattrpropdef on <var21:AAttrPropdef>*/;
+var_ppropdefnode1 = var21;
 var_node_list = var_ppropdefnode1;
-var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction420> */
-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>*/;
+var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction429> */
+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>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction420#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction420__action(val* self, val* p0) {
-parser__ReduceAction420__action(self, p0);
+/* method parser#ReduceAction429#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction429__action(val* self, val* p0) {
+parser__ReduceAction429__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction421#action for (self: ReduceAction421, Parser) */
-void parser__ReduceAction421__action(val* self, val* p0) {
+/* method parser#ReduceAction430#action for (self: ReduceAction430, Parser) */
+void parser__ReduceAction430__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_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var6 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var7 /* : Bool */;
-int cltype8;
-int idtype9;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var10 /* : Bool */;
 int cltype11;
 int idtype12;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var19 /* : AAttrPropdef */;
-val* var20 /* : null */;
-val* var21 /* : null */;
-val* var22 /* : null */;
-val* var23 /* : null */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var26 /* : Int */;
-long var27 /* : 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_nodearraylist5 = var1;
-var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var2;
-var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var3;
-var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var4;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AAttrPropdef */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
+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;
+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_nodearraylist1 = var5;
+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;
 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) {
-var6 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var6 = 0;
+var9 = 0;
 } else {
-var6 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var6) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18679);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19041);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype11 = type_nullable_parser_nodes__TKwredef.color;
+idtype12 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var10 = 1;
+} else {
+if(cltype11 >= var_tkwredefnode5->type->table_size) {
+var10 = 0;
+} else {
+var10 = var_tkwredefnode5->type->type_table[cltype11] == idtype12;
+}
+}
+if (!var10) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19043);
+show_backtrace(1);
+}
+var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype8 = type_nullable_parser_nodes__AVisibility.color;
-idtype9 = type_nullable_parser_nodes__AVisibility.id;
+cltype14 = type_nullable_parser_nodes__AVisibility.color;
+idtype15 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var7 = 1;
+var13 = 1;
 } else {
-if(cltype8 >= var_pvisibilitynode6->type->table_size) {
-var7 = 0;
+if(cltype14 >= var_pvisibilitynode6->type->table_size) {
+var13 = 0;
 } else {
-var7 = var_pvisibilitynode6->type->type_table[cltype8] == idtype9;
+var13 = var_pvisibilitynode6->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var7) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18681);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19045);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype11 = type_nullable_parser_nodes__TKwvar.color;
-idtype12 = type_nullable_parser_nodes__TKwvar.id;
+cltype17 = type_nullable_parser_nodes__TKwvar.color;
+idtype18 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var10 = 1;
+var16 = 1;
 } else {
-if(cltype11 >= var_tkwvarnode7->type->table_size) {
-var10 = 0;
+if(cltype17 >= var_tkwvarnode7->type->table_size) {
+var16 = 0;
 } else {
-var10 = var_tkwvarnode7->type->type_table[cltype11] == idtype12;
+var16 = var_tkwvarnode7->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var10) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18683);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19047);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype14 = type_nullable_parser_nodes__TId.color;
-idtype15 = type_nullable_parser_nodes__TId.id;
+cltype20 = type_nullable_parser_nodes__TId.color;
+idtype21 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var13 = 1;
+var19 = 1;
 } else {
-if(cltype14 >= var_tidnode9->type->table_size) {
-var13 = 0;
+if(cltype20 >= var_tidnode9->type->table_size) {
+var19 = 0;
 } else {
-var13 = var_tidnode9->type->type_table[cltype14] == idtype15;
+var19 = var_tidnode9->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var13) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18685);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19049);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist5;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype17 = type_nullable_parser_nodes__AAnnotations.color;
-idtype18 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var16 = 1;
+var_pexprnode12 = var_nodearraylist8;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var22 = 1;
 } else {
-if(cltype17 >= var_pannotationsnode11->type->table_size) {
-var16 = 0;
+if(cltype23 >= var_pexprnode12->type->table_size) {
+var22 = 0;
 } else {
-var16 = var_pannotationsnode11->type->type_table[cltype17] == idtype18;
+var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var16) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18687);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19051);
+show_backtrace(1);
 }
-var19 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var20 = NULL;
-var21 = NULL;
-var22 = NULL;
-var23 = NULL;
-var24 = NULL;
-var25 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var19, var_pdocnode2, var20, var21, var22, var_pvisibilitynode6, var_tkwvarnode7, var23, var_tidnode9, var24, var_pannotationsnode11, var25) /* init_aattrpropdef on <var19:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var19);
-var_ppropdefnode1 = var19;
+var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+var29 = NULL;
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var28, var_tidnode9, var29, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var26 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction421> */
-var27 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var26) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var27, var_node_list) /* push on <var_p:Parser>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction430> */
+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#ReduceAction421#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction421__action(val* self, val* p0) {
-parser__ReduceAction421__action(self, p0);
+/* method parser#ReduceAction430#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction430__action(val* self, val* p0) {
+parser__ReduceAction430__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction422#action for (self: ReduceAction422, Parser) */
-void parser__ReduceAction422__action(val* self, val* p0) {
+/* method parser#ReduceAction431#action for (self: ReduceAction431, Parser) */
+void parser__ReduceAction431__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* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var23 /* : AAttrPropdef */;
-val* var24 /* : null */;
-val* var25 /* : null */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AAttrPropdef */;
 val* var26 /* : null */;
 val* var27 /* : null */;
 val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var29 /* : Int */;
-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_nodearraylist6 = var1;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+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;
 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) {
-var7 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
+var9 = 0;
 } else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var7) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18717);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19083);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype9 = type_nullable_parser_nodes__TKwredef.color;
-idtype10 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var8 = 1;
-} else {
-if(cltype9 >= var_tkwredefnode5->type->table_size) {
-var8 = 0;
-} else {
-var8 = var_tkwredefnode5->type->type_table[cltype9] == idtype10;
-}
-}
-if (!var8) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18719);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype12 = type_nullable_parser_nodes__AVisibility.color;
-idtype13 = type_nullable_parser_nodes__AVisibility.id;
+cltype11 = type_nullable_parser_nodes__AVisibility.color;
+idtype12 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var11 = 1;
+var10 = 1;
 } else {
-if(cltype12 >= var_pvisibilitynode6->type->table_size) {
-var11 = 0;
+if(cltype11 >= var_pvisibilitynode6->type->table_size) {
+var10 = 0;
 } else {
-var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
+var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var11) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18721);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19085);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype15 = type_nullable_parser_nodes__TKwvar.color;
-idtype16 = type_nullable_parser_nodes__TKwvar.id;
+cltype14 = type_nullable_parser_nodes__TKwvar.color;
+idtype15 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var14 = 1;
+var13 = 1;
 } else {
-if(cltype15 >= var_tkwvarnode7->type->table_size) {
-var14 = 0;
+if(cltype14 >= var_tkwvarnode7->type->table_size) {
+var13 = 0;
 } else {
-var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
+var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var14) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18723);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19087);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype18 = type_nullable_parser_nodes__TId.color;
-idtype19 = type_nullable_parser_nodes__TId.id;
+cltype17 = type_nullable_parser_nodes__TId.color;
+idtype18 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var17 = 1;
+var16 = 1;
 } else {
-if(cltype18 >= var_tidnode9->type->table_size) {
-var17 = 0;
+if(cltype17 >= var_tidnode9->type->table_size) {
+var16 = 0;
 } else {
-var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
+var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var17) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18725);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19089);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist6;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype21 = type_nullable_parser_nodes__AAnnotations.color;
-idtype22 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var20 = 1;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype20 = type_nullable_parser_nodes__AType.color;
+idtype21 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var19 = 1;
 } else {
-if(cltype21 >= var_pannotationsnode11->type->table_size) {
-var20 = 0;
+if(cltype20 >= var_ptypenode10->type->table_size) {
+var19 = 0;
 } else {
-var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
+var19 = var_ptypenode10->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var20) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18727);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19091);
+show_backtrace(1);
 }
-var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var24 = NULL;
-var25 = NULL;
+var_pexprnode12 = var_nodearraylist8;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var22 = 1;
+} else {
+if(cltype23 >= var_pexprnode12->type->table_size) {
+var22 = 0;
+} else {
+var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
+}
+}
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19093);
+show_backtrace(1);
+}
+var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var26 = NULL;
 var27 = NULL;
 var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var25, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var27, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
-var_ppropdefnode1 = var23;
+var29 = NULL;
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var28, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var_ptypenode10, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction422> */
-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>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction431> */
+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#ReduceAction422#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction422__action(val* self, val* p0) {
-parser__ReduceAction422__action(self, p0);
+/* method parser#ReduceAction431#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction431__action(val* self, val* p0) {
+parser__ReduceAction431__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction423#action for (self: ReduceAction423, Parser) */
-void parser__ReduceAction423__action(val* self, val* p0) {
+/* method parser#ReduceAction432#action for (self: ReduceAction432, Parser) */
+void parser__ReduceAction432__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* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var11 /* : Bool */;
 int cltype12;
 int idtype13;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var14 /* : Bool */;
 int cltype15;
 int idtype16;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var23 /* : AAttrPropdef */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AAttrPropdef */;
+val* var30 /* : null */;
+val* var31 /* : null */;
+val* var32 /* : null */;
+val* var33 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var29 /* : Int */;
-long var30 /* : 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_nodearraylist6 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+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;
 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) {
-var7 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
-} else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var7) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18757);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype9 = type_nullable_parser_nodes__AVisibility.color;
-idtype10 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var8 = 1;
-} else {
-if(cltype9 >= var_pvisibilitynode6->type->table_size) {
-var8 = 0;
+var10 = 0;
 } else {
-var8 = var_pvisibilitynode6->type->type_table[cltype9] == idtype10;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18759);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19126);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype12 = type_nullable_parser_nodes__TKwvar.color;
-idtype13 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
 var11 = 1;
 } else {
-if(cltype12 >= var_tkwvarnode7->type->table_size) {
+if(cltype12 >= var_tkwredefnode5->type->table_size) {
 var11 = 0;
 } else {
-var11 = var_tkwvarnode7->type->type_table[cltype12] == idtype13;
+var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
 }
 }
 if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18761);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19128);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype15 = type_nullable_parser_nodes__TId.color;
-idtype16 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var14 = 1;
 } else {
-if(cltype15 >= var_tidnode9->type->table_size) {
+if(cltype15 >= var_pvisibilitynode6->type->table_size) {
 var14 = 0;
 } else {
-var14 = var_tidnode9->type->type_table[cltype15] == idtype16;
+var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18763);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19130);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype18 = type_nullable_parser_nodes__AType.color;
-idtype19 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype18 = type_nullable_parser_nodes__TKwvar.color;
+idtype19 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var17 = 1;
 } else {
-if(cltype18 >= var_ptypenode10->type->table_size) {
+if(cltype18 >= var_tkwvarnode7->type->table_size) {
 var17 = 0;
 } else {
-var17 = var_ptypenode10->type->type_table[cltype18] == idtype19;
+var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18765);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19132);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist6;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype21 = type_nullable_parser_nodes__AAnnotations.color;
-idtype22 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
+var_tidnode9 = var_nodearraylist5;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype21 = type_nullable_parser_nodes__TId.color;
+idtype22 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var20 = 1;
 } else {
-if(cltype21 >= var_pannotationsnode11->type->table_size) {
+if(cltype21 >= var_tidnode9->type->table_size) {
 var20 = 0;
 } else {
-var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
+var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18767);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19134);
+show_backtrace(1);
 }
-var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var24 = NULL;
-var25 = NULL;
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var25, var26, var_pvisibilitynode6, var_tkwvarnode7, var27, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
-var_ppropdefnode1 = var23;
+var_ptypenode10 = var_nodearraylist6;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype24 = type_nullable_parser_nodes__AType.color;
+idtype25 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var23 = 1;
+} else {
+if(cltype24 >= var_ptypenode10->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_ptypenode10->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19136);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist9;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var26 = 1;
+} else {
+if(cltype27 >= var_pexprnode12->type->table_size) {
+var26 = 0;
+} else {
+var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+}
+}
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19138);
+show_backtrace(1);
+}
+var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var30 = NULL;
+var31 = NULL;
+var32 = NULL;
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var_ptypenode10, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction423> */
-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>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction432> */
+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#ReduceAction423#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction423__action(val* self, val* p0) {
-parser__ReduceAction423__action(self, p0);
+/* method parser#ReduceAction432#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction432__action(val* self, val* p0) {
+parser__ReduceAction432__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction424#action for (self: ReduceAction424, Parser) */
-void parser__ReduceAction424__action(val* self, val* p0) {
+/* method parser#ReduceAction433#action for (self: ReduceAction433, Parser) */
+void parser__ReduceAction433__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_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+val* var_pablenode4 /* var pablenode4: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : AAttrPropdef */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AAttrPropdef */;
+val* var26 /* : null */;
+val* var27 /* : null */;
 val* var28 /* : null */;
 val* var29 /* : null */;
 val* var30 /* : null */;
-val* var31 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
+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_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_nodearraylist2 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var8;
 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) {
-var8 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var9 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18798);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19170);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype10 = type_nullable_parser_nodes__TKwredef.color;
-idtype11 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var9 = 1;
+var_pablenode4 = var_nodearraylist5;
+/* <var_pablenode4:nullable Object> isa nullable AAble */
+cltype11 = type_nullable_parser_nodes__AAble.color;
+idtype12 = type_nullable_parser_nodes__AAble.id;
+if(var_pablenode4 == NULL) {
+var10 = 1;
 } else {
-if(cltype10 >= var_tkwredefnode5->type->table_size) {
-var9 = 0;
+if(cltype11 >= var_pablenode4->type->table_size) {
+var10 = 0;
 } else {
-var9 = var_tkwredefnode5->type->type_table[cltype10] == idtype11;
+var10 = var_pablenode4->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var9) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18800);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19172);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6: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_pvisibilitynode6 == NULL) {
-var12 = 1;
+var13 = 1;
 } else {
-if(cltype13 >= var_pvisibilitynode6->type->table_size) {
-var12 = 0;
+if(cltype14 >= var_pvisibilitynode6->type->table_size) {
+var13 = 0;
 } else {
-var12 = var_pvisibilitynode6->type->type_table[cltype13] == idtype14;
+var13 = var_pvisibilitynode6->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var12) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18802);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19174);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype16 = type_nullable_parser_nodes__TKwvar.color;
-idtype17 = type_nullable_parser_nodes__TKwvar.id;
+cltype17 = type_nullable_parser_nodes__TKwvar.color;
+idtype18 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var15 = 1;
+var16 = 1;
 } else {
-if(cltype16 >= var_tkwvarnode7->type->table_size) {
-var15 = 0;
+if(cltype17 >= var_tkwvarnode7->type->table_size) {
+var16 = 0;
 } else {
-var15 = var_tkwvarnode7->type->type_table[cltype16] == idtype17;
+var16 = var_tkwvarnode7->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var15) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18804);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19176);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype19 = type_nullable_parser_nodes__TId.color;
-idtype20 = type_nullable_parser_nodes__TId.id;
+cltype20 = type_nullable_parser_nodes__TId.color;
+idtype21 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var18 = 1;
+var19 = 1;
 } else {
-if(cltype19 >= var_tidnode9->type->table_size) {
-var18 = 0;
+if(cltype20 >= var_tidnode9->type->table_size) {
+var19 = 0;
 } else {
-var18 = var_tidnode9->type->type_table[cltype19] == idtype20;
+var19 = var_tidnode9->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var18) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18806);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19178);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype22 = type_nullable_parser_nodes__AType.color;
-idtype23 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var21 = 1;
+var_pexprnode12 = var_nodearraylist8;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var22 = 1;
 } else {
-if(cltype22 >= var_ptypenode10->type->table_size) {
-var21 = 0;
+if(cltype23 >= var_pexprnode12->type->table_size) {
+var22 = 0;
 } else {
-var21 = var_ptypenode10->type->type_table[cltype22] == idtype23;
+var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var21) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18808);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19180);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist7;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype25 = type_nullable_parser_nodes__AAnnotations.color;
-idtype26 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var24 = 1;
-} else {
-if(cltype25 >= var_pannotationsnode11->type->table_size) {
-var24 = 0;
-} else {
-var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
-}
-}
-if (!var24) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18810);
-exit(1);
-}
-var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var26 = NULL;
+var27 = NULL;
 var28 = NULL;
 var29 = NULL;
 var30 = NULL;
-var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var29, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var30, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var27);
-var_ppropdefnode1 = var27;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var_pablenode4, var27, var_pvisibilitynode6, var_tkwvarnode7, var28, var_tidnode9, var29, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction424> */
-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>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction433> */
+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#ReduceAction424#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction424__action(val* self, val* p0) {
-parser__ReduceAction424__action(self, p0);
+/* method parser#ReduceAction433#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction433__action(val* self, val* p0) {
+parser__ReduceAction433__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction425#action for (self: ReduceAction425, Parser) */
-void parser__ReduceAction425__action(val* self, val* p0) {
+/* method parser#ReduceAction434#action for (self: ReduceAction434, Parser) */
+void parser__ReduceAction434__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* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var11 /* : Bool */;
 int cltype12;
 int idtype13;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var14 /* : Bool */;
 int cltype15;
 int idtype16;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var23 /* : AAttrPropdef */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AAttrPropdef */;
+val* var30 /* : null */;
+val* var31 /* : null */;
+val* var32 /* : null */;
+val* var33 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var29 /* : Int */;
-long var30 /* : 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_nodearraylist6 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+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;
 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) {
-var7 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
+var10 = 0;
 } else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var7) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18840);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19213);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist5;
+var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype9 = type_nullable_parser_nodes__AAble.color;
-idtype10 = type_nullable_parser_nodes__AAble.id;
+cltype12 = type_nullable_parser_nodes__AAble.color;
+idtype13 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var8 = 1;
-} else {
-if(cltype9 >= var_pablenode4->type->table_size) {
-var8 = 0;
-} else {
-var8 = var_pablenode4->type->type_table[cltype9] == idtype10;
-}
-}
-if (!var8) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18842);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype12 = type_nullable_parser_nodes__AVisibility.color;
-idtype13 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
 var11 = 1;
 } else {
-if(cltype12 >= var_pvisibilitynode6->type->table_size) {
+if(cltype12 >= var_pablenode4->type->table_size) {
 var11 = 0;
 } else {
-var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
+var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
 }
 }
 if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18844);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19215);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype15 = type_nullable_parser_nodes__TKwvar.color;
-idtype16 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype15 = type_nullable_parser_nodes__TKwredef.color;
+idtype16 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
 var14 = 1;
 } else {
-if(cltype15 >= var_tkwvarnode7->type->table_size) {
+if(cltype15 >= var_tkwredefnode5->type->table_size) {
 var14 = 0;
 } else {
-var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
+var14 = var_tkwredefnode5->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18846);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19217);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype18 = type_nullable_parser_nodes__TId.color;
-idtype19 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype18 = type_nullable_parser_nodes__AVisibility.color;
+idtype19 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var17 = 1;
 } else {
-if(cltype18 >= var_tidnode9->type->table_size) {
+if(cltype18 >= var_pvisibilitynode6->type->table_size) {
 var17 = 0;
 } else {
-var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
+var17 = var_pvisibilitynode6->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18848);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19219);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist6;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype21 = type_nullable_parser_nodes__AAnnotations.color;
-idtype22 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype21 = type_nullable_parser_nodes__TKwvar.color;
+idtype22 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var20 = 1;
 } else {
-if(cltype21 >= var_pannotationsnode11->type->table_size) {
+if(cltype21 >= var_tkwvarnode7->type->table_size) {
 var20 = 0;
 } else {
-var20 = var_pannotationsnode11->type->type_table[cltype21] == idtype22;
+var20 = var_tkwvarnode7->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18850);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19221);
+show_backtrace(1);
 }
-var23 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var24 = NULL;
-var25 = NULL;
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var23, var_pdocnode2, var24, var_pablenode4, var25, var_pvisibilitynode6, var_tkwvarnode7, var26, var_tidnode9, var27, var_pannotationsnode11, var28) /* init_aattrpropdef on <var23:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var23);
-var_ppropdefnode1 = var23;
+var_tidnode9 = var_nodearraylist5;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype24 = type_nullable_parser_nodes__TId.color;
+idtype25 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
+var23 = 1;
+} else {
+if(cltype24 >= var_tidnode9->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_tidnode9->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19223);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist9;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var26 = 1;
+} else {
+if(cltype27 >= var_pexprnode12->type->table_size) {
+var26 = 0;
+} else {
+var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+}
+}
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19225);
+show_backtrace(1);
+}
+var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var30 = NULL;
+var31 = NULL;
+var32 = NULL;
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var31, var_tidnode9, var32, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var29 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction425> */
-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>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction434> */
+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#ReduceAction425#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction425__action(val* self, val* p0) {
-parser__ReduceAction425__action(self, p0);
+/* method parser#ReduceAction434#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction434__action(val* self, val* p0) {
+parser__ReduceAction434__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction426#action for (self: ReduceAction426, Parser) */
-void parser__ReduceAction426__action(val* self, val* p0) {
+/* method parser#ReduceAction435#action for (self: ReduceAction435, Parser) */
+void parser__ReduceAction435__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_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist1 /* var nodearraylist1: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var27 /* : AAttrPropdef */;
-val* var28 /* : null */;
-val* var29 /* : null */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AAttrPropdef */;
 val* var30 /* : null */;
 val* var31 /* : null */;
+val* var32 /* : null */;
+val* var33 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var32 /* : Int */;
-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_nodearraylist7 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+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;
 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) {
-var8 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var10 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18881);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19258);
+show_backtrace(1);
 }
 var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype10 = type_nullable_parser_nodes__AAble.color;
-idtype11 = type_nullable_parser_nodes__AAble.id;
+cltype12 = type_nullable_parser_nodes__AAble.color;
+idtype13 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var9 = 1;
-} else {
-if(cltype10 >= var_pablenode4->type->table_size) {
-var9 = 0;
-} else {
-var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
-}
-}
-if (!var9) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18883);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype13 = type_nullable_parser_nodes__TKwredef.color;
-idtype14 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var12 = 1;
+var11 = 1;
 } else {
-if(cltype13 >= var_tkwredefnode5->type->table_size) {
-var12 = 0;
+if(cltype12 >= var_pablenode4->type->table_size) {
+var11 = 0;
 } else {
-var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
+var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var12) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18885);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19260);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var15 = 1;
+var14 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode6->type->table_size) {
-var15 = 0;
+if(cltype15 >= var_pvisibilitynode6->type->table_size) {
+var14 = 0;
 } else {
-var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
+var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var15) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18887);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19262);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype19 = type_nullable_parser_nodes__TKwvar.color;
-idtype20 = type_nullable_parser_nodes__TKwvar.id;
+cltype18 = type_nullable_parser_nodes__TKwvar.color;
+idtype19 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var18 = 1;
+var17 = 1;
 } else {
-if(cltype19 >= var_tkwvarnode7->type->table_size) {
-var18 = 0;
+if(cltype18 >= var_tkwvarnode7->type->table_size) {
+var17 = 0;
 } else {
-var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
+var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var18) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18889);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19264);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype22 = type_nullable_parser_nodes__TId.color;
-idtype23 = type_nullable_parser_nodes__TId.id;
+cltype21 = type_nullable_parser_nodes__TId.color;
+idtype22 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var21 = 1;
+var20 = 1;
 } else {
-if(cltype22 >= var_tidnode9->type->table_size) {
-var21 = 0;
+if(cltype21 >= var_tidnode9->type->table_size) {
+var20 = 0;
 } else {
-var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
+var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var21) {
+if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18891);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19266);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist7;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype25 = type_nullable_parser_nodes__AAnnotations.color;
-idtype26 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var24 = 1;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype24 = type_nullable_parser_nodes__AType.color;
+idtype25 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var23 = 1;
 } else {
-if(cltype25 >= var_pannotationsnode11->type->table_size) {
-var24 = 0;
+if(cltype24 >= var_ptypenode10->type->table_size) {
+var23 = 0;
 } else {
-var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
+var23 = var_ptypenode10->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var24) {
+if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18893);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19268);
+show_backtrace(1);
 }
-var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var28 = NULL;
-var29 = NULL;
+var_pexprnode12 = var_nodearraylist9;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var26 = 1;
+} else {
+if(cltype27 >= var_pexprnode12->type->table_size) {
+var26 = 0;
+} else {
+var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+}
+}
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19270);
+show_backtrace(1);
+}
+var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var30 = NULL;
 var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var30, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var27);
-var_ppropdefnode1 = var27;
+var32 = NULL;
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var31, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var_ptypenode10, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction426> */
-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>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction435> */
+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#ReduceAction426#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction426__action(val* self, val* p0) {
-parser__ReduceAction426__action(self, p0);
+/* method parser#ReduceAction435#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction435__action(val* self, val* p0) {
+parser__ReduceAction435__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction427#action for (self: ReduceAction427, Parser) */
-void parser__ReduceAction427__action(val* self, val* p0) {
+/* method parser#ReduceAction436#action for (self: ReduceAction436, Parser) */
+void parser__ReduceAction436__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_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var12 /* : Bool */;
 int cltype13;
 int idtype14;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
 short int var15 /* : Bool */;
 int cltype16;
 int idtype17;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var18 /* : Bool */;
 int cltype19;
 int idtype20;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var21 /* : Bool */;
 int cltype22;
 int idtype23;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var24 /* : Bool */;
 int cltype25;
 int idtype26;
-val* var27 /* : AAttrPropdef */;
-val* var28 /* : null */;
-val* var29 /* : null */;
-val* var30 /* : null */;
-val* var31 /* : null */;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AAttrPropdef */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var32 /* : Int */;
-long var33 /* : 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_nodearraylist7 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+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;
 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) {
-var8 = 1;
+var11 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var11 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var11 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18924);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19304);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist6;
+var_pablenode4 = var_nodearraylist7;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype10 = type_nullable_parser_nodes__AAble.color;
-idtype11 = type_nullable_parser_nodes__AAble.id;
+cltype13 = type_nullable_parser_nodes__AAble.color;
+idtype14 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var9 = 1;
-} else {
-if(cltype10 >= var_pablenode4->type->table_size) {
-var9 = 0;
-} else {
-var9 = var_pablenode4->type->type_table[cltype10] == idtype11;
-}
-}
-if (!var9) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18926);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype13 = type_nullable_parser_nodes__AVisibility.color;
-idtype14 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
 var12 = 1;
 } else {
-if(cltype13 >= var_pvisibilitynode6->type->table_size) {
+if(cltype13 >= var_pablenode4->type->table_size) {
 var12 = 0;
 } else {
-var12 = var_pvisibilitynode6->type->type_table[cltype13] == idtype14;
+var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
 }
 }
 if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18928);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19306);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype16 = type_nullable_parser_nodes__TKwvar.color;
-idtype17 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
 var15 = 1;
 } else {
-if(cltype16 >= var_tkwvarnode7->type->table_size) {
+if(cltype16 >= var_tkwredefnode5->type->table_size) {
 var15 = 0;
 } else {
-var15 = var_tkwvarnode7->type->type_table[cltype16] == idtype17;
+var15 = var_tkwredefnode5->type->type_table[cltype16] == idtype17;
 }
 }
 if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18930);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19308);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype19 = type_nullable_parser_nodes__TId.color;
-idtype20 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var18 = 1;
 } else {
-if(cltype19 >= var_tidnode9->type->table_size) {
+if(cltype19 >= var_pvisibilitynode6->type->table_size) {
 var18 = 0;
 } else {
-var18 = var_tidnode9->type->type_table[cltype19] == idtype20;
+var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
 }
 }
 if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18932);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19310);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype22 = type_nullable_parser_nodes__AType.color;
-idtype23 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype22 = type_nullable_parser_nodes__TKwvar.color;
+idtype23 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var21 = 1;
 } else {
-if(cltype22 >= var_ptypenode10->type->table_size) {
+if(cltype22 >= var_tkwvarnode7->type->table_size) {
 var21 = 0;
 } else {
-var21 = var_ptypenode10->type->type_table[cltype22] == idtype23;
+var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
 }
 }
 if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18934);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19312);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist7;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype25 = type_nullable_parser_nodes__AAnnotations.color;
-idtype26 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
+var_tidnode9 = var_nodearraylist5;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype25 = type_nullable_parser_nodes__TId.color;
+idtype26 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var24 = 1;
 } else {
-if(cltype25 >= var_pannotationsnode11->type->table_size) {
+if(cltype25 >= var_tidnode9->type->table_size) {
 var24 = 0;
 } else {
-var24 = var_pannotationsnode11->type->type_table[cltype25] == idtype26;
+var24 = var_tidnode9->type->type_table[cltype25] == idtype26;
 }
 }
 if (!var24) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18936);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19314);
+show_backtrace(1);
 }
-var27 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-var31 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var27, var_pdocnode2, var28, var_pablenode4, var29, var_pvisibilitynode6, var_tkwvarnode7, var30, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var31) /* init_aattrpropdef on <var27:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var27);
-var_ppropdefnode1 = var27;
+var_ptypenode10 = var_nodearraylist6;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype28 = type_nullable_parser_nodes__AType.color;
+idtype29 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var27 = 1;
+} else {
+if(cltype28 >= var_ptypenode10->type->table_size) {
+var27 = 0;
+} else {
+var27 = var_ptypenode10->type->type_table[cltype28] == idtype29;
+}
+}
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19316);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist10;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype31 = type_nullable_parser_nodes__AExpr.color;
+idtype32 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var30 = 1;
+} else {
+if(cltype31 >= var_pexprnode12->type->table_size) {
+var30 = 0;
+} else {
+var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+}
+}
+if (!var30) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19318);
+show_backtrace(1);
+}
+var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var34 = NULL;
+var35 = NULL;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var35, var_tidnode9, var_ptypenode10, var36, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
+var_ppropdefnode1 = var33;
 var_node_list = var_ppropdefnode1;
-var32 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction427> */
-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>*/;
+var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction436> */
+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#ReduceAction427#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction427__action(val* self, val* p0) {
-parser__ReduceAction427__action(self, p0);
+/* method parser#ReduceAction436#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction436__action(val* self, val* p0) {
+parser__ReduceAction436__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction428#action for (self: ReduceAction428, Parser) */
-void parser__ReduceAction428__action(val* self, val* p0) {
+/* method parser#ReduceAction437#action for (self: ReduceAction437, Parser) */
+void parser__ReduceAction437__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
@@ -3867,41 +3957,35 @@ val* var_pdocnode2 /* var pdocnode2: nullable Object */;
 short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
 short int var10 /* : Bool */;
 int cltype11;
 int idtype12;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
 short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
 short int var19 /* : Bool */;
 int cltype20;
 int idtype21;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
+val* var_pexprnode12 /* var pexprnode12: nullable Object */;
 short int var22 /* : Bool */;
 int cltype23;
 int idtype24;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var31 /* : AAttrPropdef */;
-val* var32 /* : null */;
-val* var33 /* : null */;
-val* var34 /* : null */;
+val* var25 /* : AAttrPropdef */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var28 /* : null */;
+val* var29 /* : null */;
+val* var30 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var35 /* : Int */;
-long var36 /* : Int */;
+long var31 /* : Int */;
+long var32 /* : Int */;
 var_p = p0;
 var = NULL;
 var_node_list = var;
@@ -3936,734 +4020,816 @@ var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18968);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19350);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist7;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype11 = type_nullable_parser_nodes__AAble.color;
-idtype12 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
+var_pvisibilitynode6 = var_nodearraylist2;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype11 = type_nullable_parser_nodes__AVisibility.color;
+idtype12 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
 var10 = 1;
 } else {
-if(cltype11 >= var_pablenode4->type->table_size) {
+if(cltype11 >= var_pvisibilitynode6->type->table_size) {
 var10 = 0;
 } else {
-var10 = var_pablenode4->type->type_table[cltype11] == idtype12;
+var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
 }
 }
 if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18970);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19352);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype14 = type_nullable_parser_nodes__TKwredef.color;
-idtype15 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
+var_tkwvarnode7 = var_nodearraylist3;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype14 = type_nullable_parser_nodes__TKwvar.color;
+idtype15 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
 var13 = 1;
 } else {
-if(cltype14 >= var_tkwredefnode5->type->table_size) {
+if(cltype14 >= var_tkwvarnode7->type->table_size) {
 var13 = 0;
 } else {
-var13 = var_tkwredefnode5->type->type_table[cltype14] == idtype15;
+var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
 }
 }
 if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18972);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19354);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype17 = type_nullable_parser_nodes__AVisibility.color;
-idtype18 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
+var_tidnode9 = var_nodearraylist4;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype17 = type_nullable_parser_nodes__TId.color;
+idtype18 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
 var16 = 1;
 } else {
-if(cltype17 >= var_pvisibilitynode6->type->table_size) {
+if(cltype17 >= var_tidnode9->type->table_size) {
 var16 = 0;
 } else {
-var16 = var_pvisibilitynode6->type->type_table[cltype17] == idtype18;
+var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18974);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19356);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype20 = type_nullable_parser_nodes__TKwvar.color;
-idtype21 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
+var_pannotationsnode11 = var_nodearraylist8;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype20 = type_nullable_parser_nodes__AAnnotations.color;
+idtype21 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
 var19 = 1;
 } else {
-if(cltype20 >= var_tkwvarnode7->type->table_size) {
+if(cltype20 >= var_pannotationsnode11->type->table_size) {
 var19 = 0;
 } else {
-var19 = var_tkwvarnode7->type->type_table[cltype20] == idtype21;
+var19 = var_pannotationsnode11->type->type_table[cltype20] == idtype21;
 }
 }
 if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18976);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19358);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype23 = type_nullable_parser_nodes__TId.color;
-idtype24 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
+var_pexprnode12 = var_nodearraylist7;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
 var22 = 1;
 } else {
-if(cltype23 >= var_tidnode9->type->table_size) {
+if(cltype23 >= var_pexprnode12->type->table_size) {
 var22 = 0;
 } else {
-var22 = var_tidnode9->type->type_table[cltype23] == idtype24;
+var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
 }
 }
 if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18978);
-exit(1);
-}
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype26 = type_nullable_parser_nodes__AType.color;
-idtype27 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var25 = 1;
-} else {
-if(cltype26 >= var_ptypenode10->type->table_size) {
-var25 = 0;
-} else {
-var25 = var_ptypenode10->type->type_table[cltype26] == idtype27;
-}
-}
-if (!var25) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18980);
-exit(1);
-}
-var_pannotationsnode11 = var_nodearraylist8;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype29 = type_nullable_parser_nodes__AAnnotations.color;
-idtype30 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var28 = 1;
-} else {
-if(cltype29 >= var_pannotationsnode11->type->table_size) {
-var28 = 0;
-} else {
-var28 = var_pannotationsnode11->type->type_table[cltype29] == idtype30;
-}
-}
-if (!var28) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 18982);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19360);
+show_backtrace(1);
 }
-var31 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-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__AAttrPropdef__init_aattrpropdef]))(var31, var_pdocnode2, var32, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var33, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var34) /* init_aattrpropdef on <var31:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var31);
-var_ppropdefnode1 = var31;
+var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var26 = NULL;
+var27 = NULL;
+var28 = NULL;
+var29 = NULL;
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var28, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var30, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var35 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction428> */
-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>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction437> */
+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#ReduceAction428#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction428__action(val* self, val* p0) {
-parser__ReduceAction428__action(self, p0);
+/* method parser#ReduceAction437#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction437__action(val* self, val* p0) {
+parser__ReduceAction437__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction429#action for (self: ReduceAction429, Parser) */
-void parser__ReduceAction429__action(val* self, val* p0) {
+/* method parser#ReduceAction438#action for (self: ReduceAction438, Parser) */
+void parser__ReduceAction438__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_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var21 /* : AAttrPropdef */;
-val* var22 /* : null */;
-val* var23 /* : null */;
-val* var24 /* : null */;
-val* var25 /* : null */;
-val* var26 /* : null */;
-val* var27 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AAttrPropdef */;
+val* var30 /* : null */;
+val* var31 /* : null */;
+val* var32 /* : null */;
+val* var33 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var28 /* : Int */;
-long var29 /* : 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_nodearraylist7 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+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;
 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) {
-var8 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var10 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19013);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19393);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var11 = 1;
+} else {
+if(cltype12 >= var_tkwredefnode5->type->table_size) {
+var11 = 0;
+} else {
+var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
+}
+}
+if (!var11) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19395);
+show_backtrace(1);
+}
+var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype10 = type_nullable_parser_nodes__AVisibility.color;
-idtype11 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var9 = 1;
+var14 = 1;
 } else {
-if(cltype10 >= var_pvisibilitynode6->type->table_size) {
-var9 = 0;
+if(cltype15 >= var_pvisibilitynode6->type->table_size) {
+var14 = 0;
 } else {
-var9 = var_pvisibilitynode6->type->type_table[cltype10] == idtype11;
+var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var9) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19015);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19397);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype13 = type_nullable_parser_nodes__TKwvar.color;
-idtype14 = type_nullable_parser_nodes__TKwvar.id;
+cltype18 = type_nullable_parser_nodes__TKwvar.color;
+idtype19 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var12 = 1;
+var17 = 1;
 } else {
-if(cltype13 >= var_tkwvarnode7->type->table_size) {
-var12 = 0;
+if(cltype18 >= var_tkwvarnode7->type->table_size) {
+var17 = 0;
 } else {
-var12 = var_tkwvarnode7->type->type_table[cltype13] == idtype14;
+var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var12) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19017);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19399);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype16 = type_nullable_parser_nodes__TId.color;
-idtype17 = type_nullable_parser_nodes__TId.id;
+cltype21 = type_nullable_parser_nodes__TId.color;
+idtype22 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var15 = 1;
+var20 = 1;
 } else {
-if(cltype16 >= var_tidnode9->type->table_size) {
-var15 = 0;
+if(cltype21 >= var_tidnode9->type->table_size) {
+var20 = 0;
 } else {
-var15 = var_tidnode9->type->type_table[cltype16] == idtype17;
+var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var15) {
+if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19019);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19401);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist7;
+var_pannotationsnode11 = var_nodearraylist9;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype24 = type_nullable_parser_nodes__AAnnotations.color;
+idtype25 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var23 = 1;
+} else {
+if(cltype24 >= var_pannotationsnode11->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19403);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist8;
 /* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype19 = type_nullable_parser_nodes__AExpr.color;
-idtype20 = type_nullable_parser_nodes__AExpr.id;
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode12 == NULL) {
-var18 = 1;
+var26 = 1;
 } else {
-if(cltype19 >= var_pexprnode12->type->table_size) {
-var18 = 0;
+if(cltype27 >= var_pexprnode12->type->table_size) {
+var26 = 0;
 } else {
-var18 = var_pexprnode12->type->type_table[cltype19] == idtype20;
+var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var18) {
+if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19021);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19405);
+show_backtrace(1);
 }
-var21 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var22 = NULL;
-var23 = NULL;
-var24 = NULL;
-var25 = NULL;
-var26 = NULL;
-var27 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var21->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var21, var_pdocnode2, var22, var23, var24, var_pvisibilitynode6, var_tkwvarnode7, var25, var_tidnode9, var26, var27, var_pexprnode12) /* init_aattrpropdef on <var21:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var21);
-var_ppropdefnode1 = var21;
+var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var30 = NULL;
+var31 = NULL;
+var32 = NULL;
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var33, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction429> */
-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>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction438> */
+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#ReduceAction429#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction429__action(val* self, val* p0) {
-parser__ReduceAction429__action(self, p0);
+/* method parser#ReduceAction438#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction438__action(val* self, val* p0) {
+parser__ReduceAction438__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction430#action for (self: ReduceAction430, Parser) */
-void parser__ReduceAction430__action(val* self, val* p0) {
+/* method parser#ReduceAction439#action for (self: ReduceAction439, Parser) */
+void parser__ReduceAction439__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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AAttrPropdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var29 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AAttrPropdef */;
 val* var30 /* : null */;
+val* var31 /* : null */;
+val* var32 /* : null */;
+val* var33 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var31 /* : Int */;
-long var32 /* : 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_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;
+var_nodearraylist2 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var9;
 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) {
-var9 = 1;
-} else {
-if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
-} else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var9) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19053);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype11 = type_nullable_parser_nodes__TKwredef.color;
-idtype12 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
 var10 = 1;
 } else {
-if(cltype11 >= var_tkwredefnode5->type->table_size) {
+if(cltype >= var_pdocnode2->type->table_size) {
 var10 = 0;
 } else {
-var10 = var_tkwredefnode5->type->type_table[cltype11] == idtype12;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
 if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19055);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19438);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
+cltype12 = type_nullable_parser_nodes__AVisibility.color;
+idtype13 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var13 = 1;
+var11 = 1;
 } else {
-if(cltype14 >= var_pvisibilitynode6->type->table_size) {
-var13 = 0;
+if(cltype12 >= var_pvisibilitynode6->type->table_size) {
+var11 = 0;
 } else {
-var13 = var_pvisibilitynode6->type->type_table[cltype14] == idtype15;
+var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var13) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19057);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19440);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype17 = type_nullable_parser_nodes__TKwvar.color;
-idtype18 = type_nullable_parser_nodes__TKwvar.id;
+cltype15 = type_nullable_parser_nodes__TKwvar.color;
+idtype16 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var16 = 1;
+var14 = 1;
 } else {
-if(cltype17 >= var_tkwvarnode7->type->table_size) {
-var16 = 0;
+if(cltype15 >= var_tkwvarnode7->type->table_size) {
+var14 = 0;
 } else {
-var16 = var_tkwvarnode7->type->type_table[cltype17] == idtype18;
+var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var16) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19059);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19442);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype20 = type_nullable_parser_nodes__TId.color;
-idtype21 = type_nullable_parser_nodes__TId.id;
+cltype18 = type_nullable_parser_nodes__TId.color;
+idtype19 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var19 = 1;
+var17 = 1;
 } else {
-if(cltype20 >= var_tidnode9->type->table_size) {
-var19 = 0;
+if(cltype18 >= var_tidnode9->type->table_size) {
+var17 = 0;
 } else {
-var19 = var_tidnode9->type->type_table[cltype20] == idtype21;
+var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var19) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19061);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19444);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var22 = 1;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype21 = type_nullable_parser_nodes__AType.color;
+idtype22 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var20 = 1;
 } else {
-if(cltype23 >= var_pexprnode12->type->table_size) {
-var22 = 0;
+if(cltype21 >= var_ptypenode10->type->table_size) {
+var20 = 0;
 } else {
-var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
+var20 = var_ptypenode10->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var22) {
+if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19063);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19446);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var28, var_tidnode9, var29, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var25);
-var_ppropdefnode1 = var25;
-var_node_list = var_ppropdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction430> */
-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>*/;
+var_pannotationsnode11 = var_nodearraylist9;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype24 = type_nullable_parser_nodes__AAnnotations.color;
+idtype25 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var23 = 1;
+} else {
+if(cltype24 >= var_pannotationsnode11->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19448);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist8;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var26 = 1;
+} else {
+if(cltype27 >= var_pexprnode12->type->table_size) {
+var26 = 0;
+} else {
+var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+}
+}
+if (!var26) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19450);
+show_backtrace(1);
+}
+var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var30 = NULL;
+var31 = NULL;
+var32 = NULL;
+var33 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var32, var_pvisibilitynode6, var_tkwvarnode7, var33, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
+var_ppropdefnode1 = var29;
+var_node_list = var_ppropdefnode1;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction439> */
+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#ReduceAction430#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction430__action(val* self, val* p0) {
-parser__ReduceAction430__action(self, p0);
+/* method parser#ReduceAction439#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction439__action(val* self, val* p0) {
+parser__ReduceAction439__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction431#action for (self: ReduceAction431, Parser) */
-void parser__ReduceAction431__action(val* self, val* p0) {
+/* method parser#ReduceAction440#action for (self: ReduceAction440, Parser) */
+void parser__ReduceAction440__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_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AAttrPropdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var29 /* : null */;
-val* var30 /* : null */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AAttrPropdef */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var31 /* : Int */;
-long var32 /* : 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_nodearraylist8 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
+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;
 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) {
-var9 = 1;
+var11 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var11 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var11 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19095);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19484);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype13 = type_nullable_parser_nodes__TKwredef.color;
+idtype14 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var12 = 1;
+} else {
+if(cltype13 >= var_tkwredefnode5->type->table_size) {
+var12 = 0;
+} else {
+var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
+}
+}
+if (!var12) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19486);
+show_backtrace(1);
+}
+var_pvisibilitynode6 = var_nodearraylist3;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode6 == NULL) {
-var10 = 1;
+var15 = 1;
 } else {
-if(cltype11 >= var_pvisibilitynode6->type->table_size) {
-var10 = 0;
+if(cltype16 >= var_pvisibilitynode6->type->table_size) {
+var15 = 0;
 } else {
-var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
+var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var10) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19097);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19488);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
+var_tkwvarnode7 = var_nodearraylist4;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype14 = type_nullable_parser_nodes__TKwvar.color;
-idtype15 = type_nullable_parser_nodes__TKwvar.id;
+cltype19 = type_nullable_parser_nodes__TKwvar.color;
+idtype20 = type_nullable_parser_nodes__TKwvar.id;
 if(var_tkwvarnode7 == NULL) {
-var13 = 1;
+var18 = 1;
 } else {
-if(cltype14 >= var_tkwvarnode7->type->table_size) {
-var13 = 0;
+if(cltype19 >= var_tkwvarnode7->type->table_size) {
+var18 = 0;
 } else {
-var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
+var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var13) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19099);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19490);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype17 = type_nullable_parser_nodes__TId.color;
-idtype18 = type_nullable_parser_nodes__TId.id;
+cltype22 = type_nullable_parser_nodes__TId.color;
+idtype23 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var16 = 1;
+var21 = 1;
 } else {
-if(cltype17 >= var_tidnode9->type->table_size) {
-var16 = 0;
+if(cltype22 >= var_tidnode9->type->table_size) {
+var21 = 0;
 } else {
-var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
+var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var16) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19101);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19492);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
+var_ptypenode10 = var_nodearraylist6;
 /* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype20 = type_nullable_parser_nodes__AType.color;
-idtype21 = type_nullable_parser_nodes__AType.id;
+cltype25 = type_nullable_parser_nodes__AType.color;
+idtype26 = type_nullable_parser_nodes__AType.id;
 if(var_ptypenode10 == NULL) {
-var19 = 1;
+var24 = 1;
 } else {
-if(cltype20 >= var_ptypenode10->type->table_size) {
-var19 = 0;
+if(cltype25 >= var_ptypenode10->type->table_size) {
+var24 = 0;
 } else {
-var19 = var_ptypenode10->type->type_table[cltype20] == idtype21;
+var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var19) {
+if (!var24) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19103);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19494);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var22 = 1;
+var_pannotationsnode11 = var_nodearraylist10;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype28 = type_nullable_parser_nodes__AAnnotations.color;
+idtype29 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var27 = 1;
 } else {
-if(cltype23 >= var_pexprnode12->type->table_size) {
-var22 = 0;
+if(cltype28 >= var_pannotationsnode11->type->table_size) {
+var27 = 0;
 } else {
-var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
+var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
 }
 }
-if (!var22) {
+if (!var27) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19105);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19496);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var28, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var_ptypenode10, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var25);
-var_ppropdefnode1 = var25;
+var_pexprnode12 = var_nodearraylist9;
+/* <var_pexprnode12:nullable Object> isa nullable AExpr */
+cltype31 = type_nullable_parser_nodes__AExpr.color;
+idtype32 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode12 == NULL) {
+var30 = 1;
+} else {
+if(cltype31 >= var_pexprnode12->type->table_size) {
+var30 = 0;
+} else {
+var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+}
+}
+if (!var30) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19498);
+show_backtrace(1);
+}
+var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var34 = NULL;
+var35 = NULL;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var35, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var36, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
+var_ppropdefnode1 = var33;
 var_node_list = var_ppropdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction431> */
-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>*/;
+var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction440> */
+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#ReduceAction431#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction431__action(val* self, val* p0) {
-parser__ReduceAction431__action(self, p0);
+/* method parser#ReduceAction440#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction440__action(val* self, val* p0) {
+parser__ReduceAction440__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction432#action for (self: ReduceAction432, Parser) */
-void parser__ReduceAction432__action(val* self, val* p0) {
+/* method parser#ReduceAction441#action for (self: ReduceAction441, Parser) */
+void parser__ReduceAction441__action(val* self, val* p0) {
 val* var_p /* var p: Parser */;
 val* var /* : null */;
 val* var_node_list /* var node_list: nullable Object */;
@@ -4689,7 +4855,7 @@ val* var_pdocnode2 /* var pdocnode2: nullable Object */;
 short int var10 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+val* var_pablenode4 /* var pablenode4: nullable Object */;
 short int var11 /* : Bool */;
 int cltype12;
 int idtype13;
@@ -4705,7 +4871,7 @@ val* var_tidnode9 /* var tidnode9: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
 short int var23 /* : Bool */;
 int cltype24;
 int idtype25;
@@ -4757,28 +4923,28 @@ var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19138);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19531);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype12 = type_nullable_parser_nodes__TKwredef.color;
-idtype13 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
+var_pablenode4 = var_nodearraylist5;
+/* <var_pablenode4:nullable Object> isa nullable AAble */
+cltype12 = type_nullable_parser_nodes__AAble.color;
+idtype13 = type_nullable_parser_nodes__AAble.id;
+if(var_pablenode4 == NULL) {
 var11 = 1;
 } else {
-if(cltype12 >= var_tkwredefnode5->type->table_size) {
+if(cltype12 >= var_pablenode4->type->table_size) {
 var11 = 0;
 } else {
-var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
+var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
 }
 }
 if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19140);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19533);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
+var_pvisibilitynode6 = var_nodearraylist2;
 /* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
 cltype15 = type_nullable_parser_nodes__AVisibility.color;
 idtype16 = type_nullable_parser_nodes__AVisibility.id;
@@ -4793,10 +4959,10 @@ var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19142);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19535);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist3;
 /* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
 cltype18 = type_nullable_parser_nodes__TKwvar.color;
 idtype19 = type_nullable_parser_nodes__TKwvar.id;
@@ -4811,10 +4977,10 @@ var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19144);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19537);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
+var_tidnode9 = var_nodearraylist4;
 /* <var_tidnode9:nullable Object> isa nullable TId */
 cltype21 = type_nullable_parser_nodes__TId.color;
 idtype22 = type_nullable_parser_nodes__TId.id;
@@ -4829,28 +4995,28 @@ var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19146);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19539);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype24 = type_nullable_parser_nodes__AType.color;
-idtype25 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
+var_pannotationsnode11 = var_nodearraylist9;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype24 = type_nullable_parser_nodes__AAnnotations.color;
+idtype25 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
 var23 = 1;
 } else {
-if(cltype24 >= var_ptypenode10->type->table_size) {
+if(cltype24 >= var_pannotationsnode11->type->table_size) {
 var23 = 0;
 } else {
-var23 = var_ptypenode10->type->type_table[cltype24] == idtype25;
+var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
 }
 }
 if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19148);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19541);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist9;
+var_pexprnode12 = var_nodearraylist8;
 /* <var_pexprnode12:nullable Object> isa nullable AExpr */
 cltype27 = type_nullable_parser_nodes__AExpr.color;
 idtype28 = type_nullable_parser_nodes__AExpr.id;
@@ -4865,5006 +5031,4940 @@ var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
 }
 if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19150);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19543);
+show_backtrace(1);
 }
 var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
 var30 = NULL;
 var31 = NULL;
 var32 = NULL;
 var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var_ptypenode10, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var31, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var33, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
 var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction432> */
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction441> */
 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#ReduceAction432#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction432__action(val* self, val* p0) {
-parser__ReduceAction432__action(self, p0);
+/* method parser#ReduceAction441#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction441__action(val* self, val* p0) {
+parser__ReduceAction441__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction433#action for (self: ReduceAction433, Parser) */
-void parser__ReduceAction433__action(val* self, val* p0) {
+/* method parser#ReduceAction442#action for (self: ReduceAction442, Parser) */
+void parser__ReduceAction442__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_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AAttrPropdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var29 /* : null */;
-val* var30 /* : null */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AAttrPropdef */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var31 /* : Int */;
-long var32 /* : 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_nodearraylist8 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
+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;
 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) {
-var9 = 1;
+var11 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var11 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var11 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19182);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19577);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist5;
+var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype11 = type_nullable_parser_nodes__AAble.color;
-idtype12 = type_nullable_parser_nodes__AAble.id;
+cltype13 = type_nullable_parser_nodes__AAble.color;
+idtype14 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var10 = 1;
+var12 = 1;
 } else {
-if(cltype11 >= var_pablenode4->type->table_size) {
-var10 = 0;
+if(cltype13 >= var_pablenode4->type->table_size) {
+var12 = 0;
 } else {
-var10 = var_pablenode4->type->type_table[cltype11] == idtype12;
+var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var10) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19184);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19579);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var13 = 1;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype16 = type_nullable_parser_nodes__TKwredef.color;
+idtype17 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var15 = 1;
 } else {
-if(cltype14 >= var_pvisibilitynode6->type->table_size) {
-var13 = 0;
+if(cltype16 >= var_tkwredefnode5->type->table_size) {
+var15 = 0;
 } else {
-var13 = var_pvisibilitynode6->type->type_table[cltype14] == idtype15;
+var15 = var_tkwredefnode5->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var13) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19186);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19581);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype17 = type_nullable_parser_nodes__TKwvar.color;
-idtype18 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var16 = 1;
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype19 = type_nullable_parser_nodes__AVisibility.color;
+idtype20 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var18 = 1;
 } else {
-if(cltype17 >= var_tkwvarnode7->type->table_size) {
-var16 = 0;
+if(cltype19 >= var_pvisibilitynode6->type->table_size) {
+var18 = 0;
 } else {
-var16 = var_tkwvarnode7->type->type_table[cltype17] == idtype18;
+var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var16) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19188);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19583);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype22 = type_nullable_parser_nodes__TKwvar.color;
+idtype23 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
+var21 = 1;
+} else {
+if(cltype22 >= var_tkwvarnode7->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
+}
+}
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19585);
+show_backtrace(1);
+}
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype20 = type_nullable_parser_nodes__TId.color;
-idtype21 = type_nullable_parser_nodes__TId.id;
+cltype25 = type_nullable_parser_nodes__TId.color;
+idtype26 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var19 = 1;
+var24 = 1;
 } else {
-if(cltype20 >= var_tidnode9->type->table_size) {
-var19 = 0;
+if(cltype25 >= var_tidnode9->type->table_size) {
+var24 = 0;
 } else {
-var19 = var_tidnode9->type->type_table[cltype20] == idtype21;
+var24 = var_tidnode9->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var19) {
+if (!var24) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19190);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19587);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
+var_pannotationsnode11 = var_nodearraylist10;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype28 = type_nullable_parser_nodes__AAnnotations.color;
+idtype29 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var27 = 1;
+} else {
+if(cltype28 >= var_pannotationsnode11->type->table_size) {
+var27 = 0;
+} else {
+var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
+}
+}
+if (!var27) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19589);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist9;
 /* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
+cltype31 = type_nullable_parser_nodes__AExpr.color;
+idtype32 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode12 == NULL) {
-var22 = 1;
+var30 = 1;
 } else {
-if(cltype23 >= var_pexprnode12->type->table_size) {
-var22 = 0;
+if(cltype31 >= var_pexprnode12->type->table_size) {
+var30 = 0;
 } else {
-var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
+var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var22) {
+if (!var30) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19192);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19591);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var_pablenode4, var27, var_pvisibilitynode6, var_tkwvarnode7, var28, var_tidnode9, var29, var30, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var25);
-var_ppropdefnode1 = var25;
+var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var34 = NULL;
+var35 = NULL;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var35, var_tidnode9, var36, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
+var_ppropdefnode1 = var33;
 var_node_list = var_ppropdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction433> */
-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>*/;
+var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction442> */
+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#ReduceAction433#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction433__action(val* self, val* p0) {
-parser__ReduceAction433__action(self, p0);
+/* method parser#ReduceAction442#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction442__action(val* self, val* p0) {
+parser__ReduceAction442__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction434#action for (self: ReduceAction434, Parser) */
-void parser__ReduceAction434__action(val* self, val* p0) {
+/* method parser#ReduceAction443#action for (self: ReduceAction443, Parser) */
+void parser__ReduceAction443__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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_ptypenode10 /* var ptypenode10: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AAttrPropdef */;
+val* var34 /* : null */;
+val* var35 /* : null */;
+val* var36 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : 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;
+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_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) {
-var10 = 1;
+var11 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var11 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var11 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19225);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19625);
+show_backtrace(1);
 }
 var_pablenode4 = var_nodearraylist6;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype12 = type_nullable_parser_nodes__AAble.color;
-idtype13 = type_nullable_parser_nodes__AAble.id;
+cltype13 = type_nullable_parser_nodes__AAble.color;
+idtype14 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var11 = 1;
+var12 = 1;
 } else {
-if(cltype12 >= var_pablenode4->type->table_size) {
-var11 = 0;
+if(cltype13 >= var_pablenode4->type->table_size) {
+var12 = 0;
 } else {
-var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
+var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var11) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19227);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19627);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype15 = type_nullable_parser_nodes__TKwredef.color;
-idtype16 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var14 = 1;
+var_pvisibilitynode6 = var_nodearraylist2;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var15 = 1;
 } else {
-if(cltype15 >= var_tkwredefnode5->type->table_size) {
-var14 = 0;
+if(cltype16 >= var_pvisibilitynode6->type->table_size) {
+var15 = 0;
 } else {
-var14 = var_tkwredefnode5->type->type_table[cltype15] == idtype16;
+var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var14) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19229);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19629);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype18 = type_nullable_parser_nodes__AVisibility.color;
-idtype19 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var17 = 1;
+var_tkwvarnode7 = var_nodearraylist3;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype19 = type_nullable_parser_nodes__TKwvar.color;
+idtype20 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
+var18 = 1;
 } else {
-if(cltype18 >= var_pvisibilitynode6->type->table_size) {
-var17 = 0;
+if(cltype19 >= var_tkwvarnode7->type->table_size) {
+var18 = 0;
 } else {
-var17 = var_pvisibilitynode6->type->type_table[cltype18] == idtype19;
+var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var17) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19231);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19631);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype21 = type_nullable_parser_nodes__TKwvar.color;
-idtype22 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var20 = 1;
+var_tidnode9 = var_nodearraylist4;
+/* <var_tidnode9:nullable Object> isa nullable TId */
+cltype22 = type_nullable_parser_nodes__TId.color;
+idtype23 = type_nullable_parser_nodes__TId.id;
+if(var_tidnode9 == NULL) {
+var21 = 1;
 } else {
-if(cltype21 >= var_tkwvarnode7->type->table_size) {
-var20 = 0;
+if(cltype22 >= var_tidnode9->type->table_size) {
+var21 = 0;
 } else {
-var20 = var_tkwvarnode7->type->type_table[cltype21] == idtype22;
+var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var20) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19233);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19633);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype24 = type_nullable_parser_nodes__TId.color;
-idtype25 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var23 = 1;
+var_ptypenode10 = var_nodearraylist5;
+/* <var_ptypenode10:nullable Object> isa nullable AType */
+cltype25 = type_nullable_parser_nodes__AType.color;
+idtype26 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode10 == NULL) {
+var24 = 1;
 } else {
-if(cltype24 >= var_tidnode9->type->table_size) {
-var23 = 0;
+if(cltype25 >= var_ptypenode10->type->table_size) {
+var24 = 0;
 } else {
-var23 = var_tidnode9->type->type_table[cltype24] == idtype25;
+var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var23) {
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19635);
+show_backtrace(1);
+}
+var_pannotationsnode11 = var_nodearraylist10;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype28 = type_nullable_parser_nodes__AAnnotations.color;
+idtype29 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var27 = 1;
+} else {
+if(cltype28 >= var_pannotationsnode11->type->table_size) {
+var27 = 0;
+} else {
+var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
+}
+}
+if (!var27) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19235);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19637);
+show_backtrace(1);
 }
 var_pexprnode12 = var_nodearraylist9;
 /* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
+cltype31 = type_nullable_parser_nodes__AExpr.color;
+idtype32 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode12 == NULL) {
-var26 = 1;
+var30 = 1;
 } else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
+if(cltype31 >= var_pexprnode12->type->table_size) {
+var30 = 0;
 } else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var26) {
+if (!var30) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19237);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19639);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var31, var_tidnode9, var32, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var34 = NULL;
+var35 = NULL;
+var36 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var35, var_pvisibilitynode6, var_tkwvarnode7, var36, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
+var_ppropdefnode1 = var33;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction434> */
-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>*/;
+var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction443> */
+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#ReduceAction434#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction434__action(val* self, val* p0) {
-parser__ReduceAction434__action(self, p0);
+/* method parser#ReduceAction443#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction443__action(val* self, val* p0) {
+parser__ReduceAction443__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction435#action for (self: ReduceAction435, Parser) */
-void parser__ReduceAction435__action(val* self, val* p0) {
+/* method parser#ReduceAction444#action for (self: ReduceAction444, Parser) */
+void parser__ReduceAction444__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_nodearraylist11 /* var nodearraylist11: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
+val* var_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var8 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
 val* var9 /* : 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var12 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
 val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
 val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+val* var37 /* : AAttrPropdef */;
+val* var38 /* : null */;
+val* var39 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : 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_nodearraylist9 = var1;
+var_nodearraylist11 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist10 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist9 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist8 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist7 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist6 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist5 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var8;
+var_nodearraylist4 = var8;
 var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var9;
+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_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) {
-var10 = 1;
+var12 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var12 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var12 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19270);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19674);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist6;
+var_pablenode4 = var_nodearraylist7;
 /* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype12 = type_nullable_parser_nodes__AAble.color;
-idtype13 = type_nullable_parser_nodes__AAble.id;
+cltype14 = type_nullable_parser_nodes__AAble.color;
+idtype15 = type_nullable_parser_nodes__AAble.id;
 if(var_pablenode4 == NULL) {
-var11 = 1;
+var13 = 1;
 } else {
-if(cltype12 >= var_pablenode4->type->table_size) {
-var11 = 0;
+if(cltype14 >= var_pablenode4->type->table_size) {
+var13 = 0;
 } else {
-var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
+var13 = var_pablenode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var11) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19272);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19676);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var14 = 1;
+var_tkwredefnode5 = var_nodearraylist2;
+/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
+cltype17 = type_nullable_parser_nodes__TKwredef.color;
+idtype18 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode5 == NULL) {
+var16 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode6->type->table_size) {
-var14 = 0;
+if(cltype17 >= var_tkwredefnode5->type->table_size) {
+var16 = 0;
 } else {
-var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
+var16 = var_tkwredefnode5->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var14) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19274);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19678);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype18 = type_nullable_parser_nodes__TKwvar.color;
-idtype19 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var17 = 1;
-} else {
-if(cltype18 >= var_tkwvarnode7->type->table_size) {
-var17 = 0;
-} else {
-var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
+var_pvisibilitynode6 = var_nodearraylist3;
+/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
+cltype20 = type_nullable_parser_nodes__AVisibility.color;
+idtype21 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode6 == NULL) {
+var19 = 1;
+} else {
+if(cltype20 >= var_pvisibilitynode6->type->table_size) {
+var19 = 0;
+} else {
+var19 = var_pvisibilitynode6->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var17) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19276);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19680);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
+var_tkwvarnode7 = var_nodearraylist4;
+/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
+cltype23 = type_nullable_parser_nodes__TKwvar.color;
+idtype24 = type_nullable_parser_nodes__TKwvar.id;
+if(var_tkwvarnode7 == NULL) {
+var22 = 1;
+} else {
+if(cltype23 >= var_tkwvarnode7->type->table_size) {
+var22 = 0;
+} else {
+var22 = var_tkwvarnode7->type->type_table[cltype23] == idtype24;
+}
+}
+if (!var22) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19682);
+show_backtrace(1);
+}
+var_tidnode9 = var_nodearraylist5;
 /* <var_tidnode9:nullable Object> isa nullable TId */
-cltype21 = type_nullable_parser_nodes__TId.color;
-idtype22 = type_nullable_parser_nodes__TId.id;
+cltype26 = type_nullable_parser_nodes__TId.color;
+idtype27 = type_nullable_parser_nodes__TId.id;
 if(var_tidnode9 == NULL) {
-var20 = 1;
+var25 = 1;
 } else {
-if(cltype21 >= var_tidnode9->type->table_size) {
-var20 = 0;
+if(cltype26 >= var_tidnode9->type->table_size) {
+var25 = 0;
 } else {
-var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
+var25 = var_tidnode9->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var20) {
+if (!var25) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19278);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19684);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
+var_ptypenode10 = var_nodearraylist6;
 /* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype24 = type_nullable_parser_nodes__AType.color;
-idtype25 = type_nullable_parser_nodes__AType.id;
+cltype29 = type_nullable_parser_nodes__AType.color;
+idtype30 = type_nullable_parser_nodes__AType.id;
 if(var_ptypenode10 == NULL) {
-var23 = 1;
+var28 = 1;
 } else {
-if(cltype24 >= var_ptypenode10->type->table_size) {
-var23 = 0;
+if(cltype29 >= var_ptypenode10->type->table_size) {
+var28 = 0;
 } else {
-var23 = var_ptypenode10->type->type_table[cltype24] == idtype25;
+var28 = var_ptypenode10->type->type_table[cltype29] == idtype30;
 }
 }
-if (!var23) {
+if (!var28) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19280);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19686);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist9;
+var_pannotationsnode11 = var_nodearraylist11;
+/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
+cltype32 = type_nullable_parser_nodes__AAnnotations.color;
+idtype33 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode11 == NULL) {
+var31 = 1;
+} else {
+if(cltype32 >= var_pannotationsnode11->type->table_size) {
+var31 = 0;
+} else {
+var31 = var_pannotationsnode11->type->type_table[cltype32] == idtype33;
+}
+}
+if (!var31) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19688);
+show_backtrace(1);
+}
+var_pexprnode12 = var_nodearraylist10;
 /* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
+cltype35 = type_nullable_parser_nodes__AExpr.color;
+idtype36 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode12 == NULL) {
-var26 = 1;
+var34 = 1;
 } else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
+if(cltype35 >= var_pexprnode12->type->table_size) {
+var34 = 0;
 } else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+var34 = var_pexprnode12->type->type_table[cltype35] == idtype36;
 }
 }
-if (!var26) {
+if (!var34) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19282);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19690);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var31, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var_ptypenode10, var33, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var37 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var38 = NULL;
+var39 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var37, var_pdocnode2, var38, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var39, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var37:AAttrPropdef>*/;
+var_ppropdefnode1 = var37;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction435> */
-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>*/;
+var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction444> */
+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#ReduceAction435#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction435__action(val* self, val* p0) {
-parser__ReduceAction435__action(self, p0);
+/* method parser#ReduceAction444#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction444__action(val* self, val* p0) {
+parser__ReduceAction444__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction436#action for (self: ReduceAction436, Parser) */
-void parser__ReduceAction436__action(val* self, val* p0) {
+/* method parser#ReduceAction445#action for (self: ReduceAction445, Parser) */
+void parser__ReduceAction445__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : Int */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var20 /* : AConcreteInitPropdef */;
+val* var21 /* : null */;
+val* var22 /* : null */;
+val* var23 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var24 /* : Int */;
+long var25 /* : 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_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var6;
 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;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
+var7 = 0;
 } else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19316);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19720);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist7;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype13 = type_nullable_parser_nodes__AAble.color;
-idtype14 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var12 = 1;
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype9 = type_nullable_parser_nodes__AVisibility.color;
+idtype10 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var8 = 1;
 } else {
-if(cltype13 >= var_pablenode4->type->table_size) {
-var12 = 0;
+if(cltype9 >= var_pvisibilitynode4->type->table_size) {
+var8 = 0;
 } else {
-var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
+var8 = var_pvisibilitynode4->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var12) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19318);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19722);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var15 = 1;
+var_tkwinitnode5 = var_nodearraylist3;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype12 = type_nullable_parser_nodes__TKwinit.color;
+idtype13 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var11 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode5->type->table_size) {
-var15 = 0;
+if(cltype12 >= var_tkwinitnode5->type->table_size) {
+var11 = 0;
 } else {
-var15 = var_tkwredefnode5->type->type_table[cltype16] == idtype17;
+var11 = var_tkwinitnode5->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var15) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19320);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19724);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var18 = 1;
+var_psignaturenode7 = var_nodearraylist4;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype15 = type_nullable_parser_nodes__ASignature.color;
+idtype16 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var14 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode6->type->table_size) {
-var18 = 0;
+if(cltype15 >= var_psignaturenode7->type->table_size) {
+var14 = 0;
 } else {
-var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
+var14 = var_psignaturenode7->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var18) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19322);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19726);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype22 = type_nullable_parser_nodes__TKwvar.color;
-idtype23 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var21 = 1;
+var_pexprnode9 = var_nodearraylist6;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype18 = type_nullable_parser_nodes__AExpr.color;
+idtype19 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var17 = 1;
 } else {
-if(cltype22 >= var_tkwvarnode7->type->table_size) {
-var21 = 0;
+if(cltype18 >= var_pexprnode9->type->table_size) {
+var17 = 0;
 } else {
-var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
+var17 = var_pexprnode9->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var21) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19324);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19728);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype25 = type_nullable_parser_nodes__TId.color;
-idtype26 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var24 = 1;
+var20 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var21 = NULL;
+var22 = NULL;
+var23 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var20->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var20, var_pdocnode2, var21, var_pvisibilitynode4, var_tkwinitnode5, var22, var_psignaturenode7, var23, var_pexprnode9) /* init_aconcreteinitpropdef on <var20:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var20;
+var_node_list = var_ppropdefnode1;
+var24 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction445> */
+var25 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var24) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var25, var_node_list) /* push on <var_p:Parser>*/;
+RET_LABEL:;
+}
+/* method parser#ReduceAction445#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction445__action(val* self, val* p0) {
+parser__ReduceAction445__action(self, p0);
+RET_LABEL:;
+}
+/* method parser#ReduceAction446#action for (self: ReduceAction446, Parser) */
+void parser__ReduceAction446__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* var4 /* : nullable Object */;
+val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var5 /* : nullable Object */;
+val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var6 /* : nullable Object */;
+val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
+val* var7 /* : nullable Object */;
+val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
+val* var_pdocnode2 /* var pdocnode2: nullable Object */;
+short int var8 /* : Bool */;
+int cltype;
+int idtype;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var24 /* : AConcreteInitPropdef */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var27 /* : Int */;
+long var28 /* : 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;
+var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist6 = var2;
+var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist5 = var3;
+var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist4 = var4;
+var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist3 = var5;
+var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist2 = var6;
+var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var7;
+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) {
+var8 = 1;
 } else {
-if(cltype25 >= var_tidnode9->type->table_size) {
-var24 = 0;
+if(cltype >= var_pdocnode2->type->table_size) {
+var8 = 0;
 } else {
-var24 = var_tidnode9->type->type_table[cltype25] == idtype26;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var24) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19326);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19756);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype28 = type_nullable_parser_nodes__AType.color;
-idtype29 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var27 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype10 = type_nullable_parser_nodes__TKwredef.color;
+idtype11 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var9 = 1;
 } else {
-if(cltype28 >= var_ptypenode10->type->table_size) {
-var27 = 0;
+if(cltype10 >= var_tkwredefnode3->type->table_size) {
+var9 = 0;
 } else {
-var27 = var_ptypenode10->type->type_table[cltype28] == idtype29;
+var9 = var_tkwredefnode3->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var27) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19328);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19758);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist10;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype13 = type_nullable_parser_nodes__AVisibility.color;
+idtype14 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var12 = 1;
 } else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
+if(cltype13 >= var_pvisibilitynode4->type->table_size) {
+var12 = 0;
 } else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+var12 = var_pvisibilitynode4->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var30) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19330);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19760);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var35, var_tidnode9, var_ptypenode10, var36, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var_tkwinitnode5 = var_nodearraylist4;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype16 = type_nullable_parser_nodes__TKwinit.color;
+idtype17 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var15 = 1;
+} else {
+if(cltype16 >= var_tkwinitnode5->type->table_size) {
+var15 = 0;
+} else {
+var15 = var_tkwinitnode5->type->type_table[cltype16] == idtype17;
+}
+}
+if (!var15) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19762);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist5;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype19 = type_nullable_parser_nodes__ASignature.color;
+idtype20 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var18 = 1;
+} else {
+if(cltype19 >= var_psignaturenode7->type->table_size) {
+var18 = 0;
+} else {
+var18 = var_psignaturenode7->type->type_table[cltype19] == idtype20;
+}
+}
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19764);
+show_backtrace(1);
+}
+var_pexprnode9 = var_nodearraylist7;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype22 = type_nullable_parser_nodes__AExpr.color;
+idtype23 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var21 = 1;
+} else {
+if(cltype22 >= var_pexprnode9->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
+}
+}
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19766);
+show_backtrace(1);
+}
+var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var25 = NULL;
+var26 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var25, var_psignaturenode7, var26, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var24;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction436> */
-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>*/;
+var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction446> */
+var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction436#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction436__action(val* self, val* p0) {
-parser__ReduceAction436__action(self, p0);
+/* method parser#ReduceAction446#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction446__action(val* self, val* p0) {
+parser__ReduceAction446__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction437#action for (self: ReduceAction437, Parser) */
-void parser__ReduceAction437__action(val* self, val* p0) {
+/* method parser#ReduceAction447#action for (self: ReduceAction447, Parser) */
+void parser__ReduceAction447__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* var2 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AAttrPropdef */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var24 /* : AConcreteInitPropdef */;
+val* var25 /* : null */;
 val* var26 /* : null */;
-val* var27 /* : null */;
-val* var28 /* : null */;
-val* var29 /* : null */;
-val* var30 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var31 /* : Int */;
-long var32 /* : Int */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var27 /* : Int */;
+long var28 /* : 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_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var7;
 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) {
-var9 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var8 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19362);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19794);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var10 = 1;
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype10 = type_nullable_parser_nodes__AVisibility.color;
+idtype11 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var9 = 1;
 } else {
-if(cltype11 >= var_pvisibilitynode6->type->table_size) {
-var10 = 0;
+if(cltype10 >= var_pvisibilitynode4->type->table_size) {
+var9 = 0;
 } else {
-var10 = var_pvisibilitynode6->type->type_table[cltype11] == idtype12;
+var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var10) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19364);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19796);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype14 = type_nullable_parser_nodes__TKwvar.color;
-idtype15 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var13 = 1;
+var_tkwinitnode5 = var_nodearraylist3;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype13 = type_nullable_parser_nodes__TKwinit.color;
+idtype14 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var12 = 1;
 } else {
-if(cltype14 >= var_tkwvarnode7->type->table_size) {
-var13 = 0;
+if(cltype13 >= var_tkwinitnode5->type->table_size) {
+var12 = 0;
 } else {
-var13 = var_tkwvarnode7->type->type_table[cltype14] == idtype15;
+var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var13) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19366);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19798);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype17 = type_nullable_parser_nodes__TId.color;
-idtype18 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var16 = 1;
+var_pmethidnode6 = var_nodearraylist4;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype16 = type_nullable_parser_nodes__AMethid.color;
+idtype17 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var15 = 1;
 } else {
-if(cltype17 >= var_tidnode9->type->table_size) {
-var16 = 0;
+if(cltype16 >= var_pmethidnode6->type->table_size) {
+var15 = 0;
 } else {
-var16 = var_tidnode9->type->type_table[cltype17] == idtype18;
+var15 = var_pmethidnode6->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var16) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19368);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19800);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist8;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype20 = type_nullable_parser_nodes__AAnnotations.color;
-idtype21 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var19 = 1;
+var_psignaturenode7 = var_nodearraylist5;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype19 = type_nullable_parser_nodes__ASignature.color;
+idtype20 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var18 = 1;
 } else {
-if(cltype20 >= var_pannotationsnode11->type->table_size) {
-var19 = 0;
+if(cltype19 >= var_psignaturenode7->type->table_size) {
+var18 = 0;
 } else {
-var19 = var_pannotationsnode11->type->type_table[cltype20] == idtype21;
-}
+var18 = var_psignaturenode7->type->type_table[cltype19] == idtype20;
 }
-if (!var19) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19370);
-exit(1);
 }
-var_pexprnode12 = var_nodearraylist7;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var22 = 1;
+if (!var18) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19802);
+show_backtrace(1);
+}
+var_pexprnode9 = var_nodearraylist7;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype22 = type_nullable_parser_nodes__AExpr.color;
+idtype23 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var21 = 1;
 } else {
-if(cltype23 >= var_pexprnode12->type->table_size) {
-var22 = 0;
+if(cltype22 >= var_pexprnode9->type->table_size) {
+var21 = 0;
 } else {
-var22 = var_pexprnode12->type->type_table[cltype23] == idtype24;
+var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var22) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19372);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19804);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
+var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var25 = NULL;
 var26 = NULL;
-var27 = NULL;
-var28 = NULL;
-var29 = NULL;
-var30 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var25, var_pdocnode2, var26, var27, var28, var_pvisibilitynode6, var_tkwvarnode7, var29, var_tidnode9, var30, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var25:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var25);
-var_ppropdefnode1 = var25;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var25, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var26, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var24;
 var_node_list = var_ppropdefnode1;
-var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction437> */
-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>*/;
+var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction447> */
+var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction437#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction437__action(val* self, val* p0) {
-parser__ReduceAction437__action(self, p0);
+/* method parser#ReduceAction447#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction447__action(val* self, val* p0) {
+parser__ReduceAction447__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction438#action for (self: ReduceAction438, Parser) */
-void parser__ReduceAction438__action(val* self, val* p0) {
+/* method parser#ReduceAction448#action for (self: ReduceAction448, Parser) */
+void parser__ReduceAction448__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* var2 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : Int */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : AConcreteInitPropdef */;
+val* var29 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var30 /* : Int */;
+long var31 /* : 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_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var8;
 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) {
-var10 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var9 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19405);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19833);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype12 = type_nullable_parser_nodes__TKwredef.color;
-idtype13 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var11 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype11 = type_nullable_parser_nodes__TKwredef.color;
+idtype12 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var10 = 1;
 } else {
-if(cltype12 >= var_tkwredefnode5->type->table_size) {
-var11 = 0;
+if(cltype11 >= var_tkwredefnode3->type->table_size) {
+var10 = 0;
 } else {
-var11 = var_tkwredefnode5->type->type_table[cltype12] == idtype13;
+var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var11) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19407);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19835);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var14 = 1;
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <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(cltype15 >= var_pvisibilitynode6->type->table_size) {
-var14 = 0;
+if(cltype14 >= var_pvisibilitynode4->type->table_size) {
+var13 = 0;
 } else {
-var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
+var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var14) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19409);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19837);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype18 = type_nullable_parser_nodes__TKwvar.color;
-idtype19 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var17 = 1;
+var_tkwinitnode5 = var_nodearraylist4;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype17 = type_nullable_parser_nodes__TKwinit.color;
+idtype18 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var16 = 1;
 } else {
-if(cltype18 >= var_tkwvarnode7->type->table_size) {
-var17 = 0;
+if(cltype17 >= var_tkwinitnode5->type->table_size) {
+var16 = 0;
 } else {
-var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
+var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var17) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19411);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19839);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype21 = type_nullable_parser_nodes__TId.color;
-idtype22 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var20 = 1;
+var_pmethidnode6 = var_nodearraylist5;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype20 = type_nullable_parser_nodes__AMethid.color;
+idtype21 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var19 = 1;
 } else {
-if(cltype21 >= var_tidnode9->type->table_size) {
-var20 = 0;
+if(cltype20 >= var_pmethidnode6->type->table_size) {
+var19 = 0;
 } else {
-var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
+var19 = var_pmethidnode6->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var20) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19413);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19841);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist9;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype24 = type_nullable_parser_nodes__AAnnotations.color;
-idtype25 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var23 = 1;
+var_psignaturenode7 = var_nodearraylist6;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype23 = type_nullable_parser_nodes__ASignature.color;
+idtype24 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var22 = 1;
 } else {
-if(cltype24 >= var_pannotationsnode11->type->table_size) {
-var23 = 0;
+if(cltype23 >= var_psignaturenode7->type->table_size) {
+var22 = 0;
 } else {
-var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
+var22 = var_psignaturenode7->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var23) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19415);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19843);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var26 = 1;
+var_pexprnode9 = var_nodearraylist8;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype26 = type_nullable_parser_nodes__AExpr.color;
+idtype27 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var25 = 1;
 } else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
+if(cltype26 >= var_pexprnode9->type->table_size) {
+var25 = 0;
 } else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var26) {
+if (!var25) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19417);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19845);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var33, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var29 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var29, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var28;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction438> */
-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>*/;
+var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction448> */
+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#ReduceAction438#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction438__action(val* self, val* p0) {
-parser__ReduceAction438__action(self, p0);
+/* method parser#ReduceAction448#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction448__action(val* self, val* p0) {
+parser__ReduceAction448__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction439#action for (self: ReduceAction439, Parser) */
-void parser__ReduceAction439__action(val* self, val* p0) {
+/* method parser#ReduceAction449#action for (self: ReduceAction449, Parser) */
+void parser__ReduceAction449__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* var2 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : Int */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var24 /* : AConcreteInitPropdef */;
+val* var25 /* : null */;
+val* var26 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var27 /* : Int */;
+long var28 /* : 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_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var7;
 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) {
-var10 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
-} else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var10) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19450);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype12 = type_nullable_parser_nodes__AVisibility.color;
-idtype13 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var11 = 1;
-} else {
-if(cltype12 >= var_pvisibilitynode6->type->table_size) {
-var11 = 0;
+var8 = 0;
 } else {
-var11 = var_pvisibilitynode6->type->type_table[cltype12] == idtype13;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19452);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19873);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype15 = type_nullable_parser_nodes__TKwvar.color;
-idtype16 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var14 = 1;
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype10 = type_nullable_parser_nodes__AVisibility.color;
+idtype11 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var9 = 1;
 } else {
-if(cltype15 >= var_tkwvarnode7->type->table_size) {
-var14 = 0;
+if(cltype10 >= var_pvisibilitynode4->type->table_size) {
+var9 = 0;
 } else {
-var14 = var_tkwvarnode7->type->type_table[cltype15] == idtype16;
+var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var14) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19454);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19875);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype18 = type_nullable_parser_nodes__TId.color;
-idtype19 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var17 = 1;
+var_tkwinitnode5 = var_nodearraylist3;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype13 = type_nullable_parser_nodes__TKwinit.color;
+idtype14 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var12 = 1;
 } else {
-if(cltype18 >= var_tidnode9->type->table_size) {
-var17 = 0;
+if(cltype13 >= var_tkwinitnode5->type->table_size) {
+var12 = 0;
 } else {
-var17 = var_tidnode9->type->type_table[cltype18] == idtype19;
+var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var17) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19456);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19877);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype21 = type_nullable_parser_nodes__AType.color;
-idtype22 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var20 = 1;
+var_psignaturenode7 = var_nodearraylist4;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype16 = type_nullable_parser_nodes__ASignature.color;
+idtype17 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var15 = 1;
 } else {
-if(cltype21 >= var_ptypenode10->type->table_size) {
-var20 = 0;
+if(cltype16 >= var_psignaturenode7->type->table_size) {
+var15 = 0;
 } else {
-var20 = var_ptypenode10->type->type_table[cltype21] == idtype22;
+var15 = var_psignaturenode7->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var20) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19458);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19879);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist9;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype24 = type_nullable_parser_nodes__AAnnotations.color;
-idtype25 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var23 = 1;
+var_pannotationsnode8 = var_nodearraylist5;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype19 = type_nullable_parser_nodes__AAnnotations.color;
+idtype20 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var18 = 1;
 } else {
-if(cltype24 >= var_pannotationsnode11->type->table_size) {
-var23 = 0;
+if(cltype19 >= var_pannotationsnode8->type->table_size) {
+var18 = 0;
 } else {
-var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
+var18 = var_pannotationsnode8->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var23) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19460);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19881);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var26 = 1;
+var_pexprnode9 = var_nodearraylist7;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype22 = type_nullable_parser_nodes__AExpr.color;
+idtype23 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var21 = 1;
 } else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
+if(cltype22 >= var_pexprnode9->type->table_size) {
+var21 = 0;
 } else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var26) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19462);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19883);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var31, var32, var_pvisibilitynode6, var_tkwvarnode7, var33, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var25 = NULL;
+var26 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var25, var_pvisibilitynode4, var_tkwinitnode5, var26, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var24;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction439> */
-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>*/;
+var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction449> */
+var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction439#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction439__action(val* self, val* p0) {
-parser__ReduceAction439__action(self, p0);
+/* method parser#ReduceAction449#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction449__action(val* self, val* p0) {
+parser__ReduceAction449__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction440#action for (self: ReduceAction440, Parser) */
-void parser__ReduceAction440__action(val* self, val* p0) {
+/* method parser#ReduceAction450#action for (self: ReduceAction450, Parser) */
+void parser__ReduceAction450__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* var2 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : Int */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : AConcreteInitPropdef */;
+val* var29 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var30 /* : Int */;
+long var31 /* : 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_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var7;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var8;
 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;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
-} else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var11) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19496);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype13 = type_nullable_parser_nodes__TKwredef.color;
-idtype14 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var12 = 1;
-} else {
-if(cltype13 >= var_tkwredefnode5->type->table_size) {
-var12 = 0;
+var9 = 0;
 } else {
-var12 = var_tkwredefnode5->type->type_table[cltype13] == idtype14;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var12) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19498);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19912);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var15 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype11 = type_nullable_parser_nodes__TKwredef.color;
+idtype12 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var10 = 1;
 } else {
-if(cltype16 >= var_pvisibilitynode6->type->table_size) {
-var15 = 0;
+if(cltype11 >= var_tkwredefnode3->type->table_size) {
+var10 = 0;
 } else {
-var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
+var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var15) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19500);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19914);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype19 = type_nullable_parser_nodes__TKwvar.color;
-idtype20 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var18 = 1;
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <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(cltype19 >= var_tkwvarnode7->type->table_size) {
-var18 = 0;
+if(cltype14 >= var_pvisibilitynode4->type->table_size) {
+var13 = 0;
 } else {
-var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
+var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var18) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19502);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19916);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype22 = type_nullable_parser_nodes__TId.color;
-idtype23 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var21 = 1;
+var_tkwinitnode5 = var_nodearraylist4;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype17 = type_nullable_parser_nodes__TKwinit.color;
+idtype18 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var16 = 1;
 } else {
-if(cltype22 >= var_tidnode9->type->table_size) {
-var21 = 0;
+if(cltype17 >= var_tkwinitnode5->type->table_size) {
+var16 = 0;
 } else {
-var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
+var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var21) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19504);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19918);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype25 = type_nullable_parser_nodes__AType.color;
-idtype26 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var24 = 1;
+var_psignaturenode7 = var_nodearraylist5;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype20 = type_nullable_parser_nodes__ASignature.color;
+idtype21 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var19 = 1;
 } else {
-if(cltype25 >= var_ptypenode10->type->table_size) {
-var24 = 0;
+if(cltype20 >= var_psignaturenode7->type->table_size) {
+var19 = 0;
 } else {
-var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
+var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var24) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19506);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19920);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist10;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype28 = type_nullable_parser_nodes__AAnnotations.color;
-idtype29 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var27 = 1;
+var_pannotationsnode8 = var_nodearraylist6;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype23 = type_nullable_parser_nodes__AAnnotations.color;
+idtype24 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var22 = 1;
 } else {
-if(cltype28 >= var_pannotationsnode11->type->table_size) {
-var27 = 0;
+if(cltype23 >= var_pannotationsnode8->type->table_size) {
+var22 = 0;
 } else {
-var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
+var22 = var_pannotationsnode8->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var27) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19508);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19922);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist9;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
+var_pexprnode9 = var_nodearraylist8;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype26 = type_nullable_parser_nodes__AExpr.color;
+idtype27 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var25 = 1;
 } else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
+if(cltype26 >= var_pexprnode9->type->table_size) {
+var25 = 0;
 } else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var30) {
+if (!var25) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19510);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19924);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var35, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var36, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var29 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var29, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var28;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction440> */
-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>*/;
+var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction450> */
+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#ReduceAction440#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction440__action(val* self, val* p0) {
-parser__ReduceAction440__action(self, p0);
+/* method parser#ReduceAction450#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction450__action(val* self, val* p0) {
+parser__ReduceAction450__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction441#action for (self: ReduceAction441, Parser) */
-void parser__ReduceAction441__action(val* self, val* p0) {
+/* method parser#ReduceAction451#action for (self: ReduceAction451, Parser) */
+void parser__ReduceAction451__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* var2 /* : nullable Object */;
 val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var8 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var20 /* : Bool */;
-int cltype21;
-int idtype22;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : AAttrPropdef */;
-val* var30 /* : null */;
-val* var31 /* : null */;
-val* var32 /* : null */;
-val* var33 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var34 /* : Int */;
-long var35 /* : Int */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+val* var28 /* : AConcreteInitPropdef */;
+val* var29 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var30 /* : Int */;
+long var31 /* : 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_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var6;
+var_nodearraylist3 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var7;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var8;
 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) {
-var10 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var9 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19543);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19953);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist5;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype12 = type_nullable_parser_nodes__AAble.color;
-idtype13 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var11 = 1;
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype11 = type_nullable_parser_nodes__AVisibility.color;
+idtype12 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var10 = 1;
 } else {
-if(cltype12 >= var_pablenode4->type->table_size) {
-var11 = 0;
+if(cltype11 >= var_pvisibilitynode4->type->table_size) {
+var10 = 0;
 } else {
-var11 = var_pablenode4->type->type_table[cltype12] == idtype13;
+var10 = var_pvisibilitynode4->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var11) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19545);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19955);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype15 = type_nullable_parser_nodes__AVisibility.color;
-idtype16 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var14 = 1;
+var_tkwinitnode5 = var_nodearraylist3;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype14 = type_nullable_parser_nodes__TKwinit.color;
+idtype15 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var13 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode6->type->table_size) {
-var14 = 0;
+if(cltype14 >= var_tkwinitnode5->type->table_size) {
+var13 = 0;
 } else {
-var14 = var_pvisibilitynode6->type->type_table[cltype15] == idtype16;
+var13 = var_tkwinitnode5->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var14) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19547);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19957);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype18 = type_nullable_parser_nodes__TKwvar.color;
-idtype19 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var17 = 1;
+var_pmethidnode6 = var_nodearraylist4;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype17 = type_nullable_parser_nodes__AMethid.color;
+idtype18 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var16 = 1;
 } else {
-if(cltype18 >= var_tkwvarnode7->type->table_size) {
-var17 = 0;
+if(cltype17 >= var_pmethidnode6->type->table_size) {
+var16 = 0;
 } else {
-var17 = var_tkwvarnode7->type->type_table[cltype18] == idtype19;
+var16 = var_pmethidnode6->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var17) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19549);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19959);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype21 = type_nullable_parser_nodes__TId.color;
-idtype22 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var20 = 1;
+var_psignaturenode7 = var_nodearraylist5;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype20 = type_nullable_parser_nodes__ASignature.color;
+idtype21 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var19 = 1;
 } else {
-if(cltype21 >= var_tidnode9->type->table_size) {
-var20 = 0;
+if(cltype20 >= var_psignaturenode7->type->table_size) {
+var19 = 0;
 } else {
-var20 = var_tidnode9->type->type_table[cltype21] == idtype22;
+var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var20) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19551);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19961);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist9;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype24 = type_nullable_parser_nodes__AAnnotations.color;
-idtype25 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var23 = 1;
+var_pannotationsnode8 = var_nodearraylist6;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype23 = type_nullable_parser_nodes__AAnnotations.color;
+idtype24 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var22 = 1;
 } else {
-if(cltype24 >= var_pannotationsnode11->type->table_size) {
-var23 = 0;
+if(cltype23 >= var_pannotationsnode8->type->table_size) {
+var22 = 0;
 } else {
-var23 = var_pannotationsnode11->type->type_table[cltype24] == idtype25;
+var22 = var_pannotationsnode8->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var23) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19553);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19963);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist8;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype27 = type_nullable_parser_nodes__AExpr.color;
-idtype28 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var26 = 1;
+var_pexprnode9 = var_nodearraylist8;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype26 = type_nullable_parser_nodes__AExpr.color;
+idtype27 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var25 = 1;
 } else {
-if(cltype27 >= var_pexprnode12->type->table_size) {
-var26 = 0;
+if(cltype26 >= var_pexprnode9->type->table_size) {
+var25 = 0;
 } else {
-var26 = var_pexprnode12->type->type_table[cltype27] == idtype28;
+var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
 }
 }
-if (!var26) {
+if (!var25) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19555);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19965);
+show_backtrace(1);
 }
-var29 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var30 = NULL;
-var31 = NULL;
-var32 = NULL;
-var33 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var29, var_pdocnode2, var30, var_pablenode4, var31, var_pvisibilitynode6, var_tkwvarnode7, var32, var_tidnode9, var33, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var29:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var29);
-var_ppropdefnode1 = var29;
+var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var29 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var29, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var28;
 var_node_list = var_ppropdefnode1;
-var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction441> */
-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>*/;
+var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction451> */
+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#ReduceAction441#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction441__action(val* self, val* p0) {
-parser__ReduceAction441__action(self, p0);
+/* method parser#ReduceAction451#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction451__action(val* self, val* p0) {
+parser__ReduceAction451__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction442#action for (self: ReduceAction442, Parser) */
-void parser__ReduceAction442__action(val* self, val* p0) {
+/* method parser#ReduceAction452#action for (self: ReduceAction452, Parser) */
+void parser__ReduceAction452__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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : Int */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+val* var32 /* : AConcreteInitPropdef */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var33 /* : Int */;
+long var34 /* : 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;
 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;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
+var10 = 0;
 } else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var11) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19589);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19995);
+show_backtrace(1);
 }
-var_pablenode4 = var_nodearraylist6;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype13 = type_nullable_parser_nodes__AAble.color;
-idtype14 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var12 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var11 = 1;
 } else {
-if(cltype13 >= var_pablenode4->type->table_size) {
-var12 = 0;
+if(cltype12 >= var_tkwredefnode3->type->table_size) {
+var11 = 0;
 } else {
-var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
+var11 = var_tkwredefnode3->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var12) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19591);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19997);
+show_backtrace(1);
 }
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype16 = type_nullable_parser_nodes__TKwredef.color;
-idtype17 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var15 = 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;
+if(var_pvisibilitynode4 == NULL) {
+var14 = 1;
 } else {
-if(cltype16 >= var_tkwredefnode5->type->table_size) {
-var15 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var15 = var_tkwredefnode5->type->type_table[cltype16] == idtype17;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var15) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19593);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19999);
+show_backtrace(1);
 }
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype19 = type_nullable_parser_nodes__AVisibility.color;
-idtype20 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var18 = 1;
+var_tkwinitnode5 = var_nodearraylist4;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype18 = type_nullable_parser_nodes__TKwinit.color;
+idtype19 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var17 = 1;
 } else {
-if(cltype19 >= var_pvisibilitynode6->type->table_size) {
-var18 = 0;
+if(cltype18 >= var_tkwinitnode5->type->table_size) {
+var17 = 0;
 } else {
-var18 = var_pvisibilitynode6->type->type_table[cltype19] == idtype20;
+var17 = var_tkwinitnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var18) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19595);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20001);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype22 = type_nullable_parser_nodes__TKwvar.color;
-idtype23 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var21 = 1;
+var_pmethidnode6 = var_nodearraylist5;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype21 = type_nullable_parser_nodes__AMethid.color;
+idtype22 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var20 = 1;
 } else {
-if(cltype22 >= var_tkwvarnode7->type->table_size) {
-var21 = 0;
+if(cltype21 >= var_pmethidnode6->type->table_size) {
+var20 = 0;
 } else {
-var21 = var_tkwvarnode7->type->type_table[cltype22] == idtype23;
-}
+var20 = var_pmethidnode6->type->type_table[cltype21] == idtype22;
 }
-if (!var21) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19597);
-exit(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype25 = type_nullable_parser_nodes__TId.color;
-idtype26 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var24 = 1;
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20003);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist6;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype24 = type_nullable_parser_nodes__ASignature.color;
+idtype25 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var23 = 1;
 } else {
-if(cltype25 >= var_tidnode9->type->table_size) {
-var24 = 0;
+if(cltype24 >= var_psignaturenode7->type->table_size) {
+var23 = 0;
 } else {
-var24 = var_tidnode9->type->type_table[cltype25] == idtype26;
+var23 = var_psignaturenode7->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var24) {
+if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19599);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20005);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist10;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype28 = type_nullable_parser_nodes__AAnnotations.color;
-idtype29 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var27 = 1;
+var_pannotationsnode8 = var_nodearraylist7;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype27 = type_nullable_parser_nodes__AAnnotations.color;
+idtype28 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var26 = 1;
 } else {
-if(cltype28 >= var_pannotationsnode11->type->table_size) {
-var27 = 0;
+if(cltype27 >= var_pannotationsnode8->type->table_size) {
+var26 = 0;
 } else {
-var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
+var26 = var_pannotationsnode8->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var27) {
+if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19601);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20007);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist9;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
+var_pexprnode9 = var_nodearraylist9;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype30 = type_nullable_parser_nodes__AExpr.color;
+idtype31 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var29 = 1;
 } else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
+if(cltype30 >= var_pexprnode9->type->table_size) {
+var29 = 0;
 } else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+var29 = var_pexprnode9->type->type_table[cltype30] == idtype31;
 }
 }
-if (!var30) {
+if (!var29) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19603);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20009);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var35, var_tidnode9, var36, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var32 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var32, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var32:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var32;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction442> */
-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>*/;
+var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction452> */
+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#ReduceAction442#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction442__action(val* self, val* p0) {
-parser__ReduceAction442__action(self, p0);
+/* method parser#ReduceAction452#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction452__action(val* self, val* p0) {
+parser__ReduceAction452__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction443#action for (self: ReduceAction443, Parser) */
-void parser__ReduceAction443__action(val* self, val* p0) {
+/* method parser#ReduceAction453#action for (self: ReduceAction453, Parser) */
+void parser__ReduceAction453__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* var2 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var10 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var11 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
 short int var12 /* : Bool */;
 int cltype13;
 int idtype14;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
 short int var15 /* : Bool */;
 int cltype16;
 int idtype17;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
 short int var18 /* : Bool */;
 int cltype19;
 int idtype20;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-val* var33 /* : AAttrPropdef */;
-val* var34 /* : null */;
-val* var35 /* : null */;
-val* var36 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var37 /* : Int */;
-long var38 /* : Int */;
+val* var21 /* : AConcreteInitPropdef */;
+val* var22 /* : null */;
+val* var23 /* : null */;
+val* var24 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var25 /* : Int */;
+long var26 /* : 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_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist9 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var6;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var7;
 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;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var11 = 0;
-} else {
-var11 = var_pdocnode2->type->type_table[cltype] == idtype;
-}
-}
-if (!var11) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19637);
-exit(1);
-}
-var_pablenode4 = var_nodearraylist6;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype13 = type_nullable_parser_nodes__AAble.color;
-idtype14 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var12 = 1;
-} else {
-if(cltype13 >= var_pablenode4->type->table_size) {
-var12 = 0;
-} else {
-var12 = var_pablenode4->type->type_table[cltype13] == idtype14;
-}
-}
-if (!var12) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19639);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist2;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype16 = type_nullable_parser_nodes__AVisibility.color;
-idtype17 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var15 = 1;
-} else {
-if(cltype16 >= var_pvisibilitynode6->type->table_size) {
-var15 = 0;
-} else {
-var15 = var_pvisibilitynode6->type->type_table[cltype16] == idtype17;
-}
-}
-if (!var15) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19641);
-exit(1);
-}
-var_tkwvarnode7 = var_nodearraylist3;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype19 = type_nullable_parser_nodes__TKwvar.color;
-idtype20 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var18 = 1;
-} else {
-if(cltype19 >= var_tkwvarnode7->type->table_size) {
-var18 = 0;
+var8 = 0;
 } else {
-var18 = var_tkwvarnode7->type->type_table[cltype19] == idtype20;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var18) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19643);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20037);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist4;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype22 = type_nullable_parser_nodes__TId.color;
-idtype23 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var21 = 1;
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype10 = type_nullable_parser_nodes__AVisibility.color;
+idtype11 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var9 = 1;
 } else {
-if(cltype22 >= var_tidnode9->type->table_size) {
-var21 = 0;
+if(cltype10 >= var_pvisibilitynode4->type->table_size) {
+var9 = 0;
 } else {
-var21 = var_tidnode9->type->type_table[cltype22] == idtype23;
+var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var21) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19645);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20039);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist5;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype25 = type_nullable_parser_nodes__AType.color;
-idtype26 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var24 = 1;
+var_tkwinitnode5 = var_nodearraylist3;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype13 = type_nullable_parser_nodes__TKwinit.color;
+idtype14 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var12 = 1;
 } else {
-if(cltype25 >= var_ptypenode10->type->table_size) {
-var24 = 0;
+if(cltype13 >= var_tkwinitnode5->type->table_size) {
+var12 = 0;
 } else {
-var24 = var_ptypenode10->type->type_table[cltype25] == idtype26;
+var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var24) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19647);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20041);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist10;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype28 = type_nullable_parser_nodes__AAnnotations.color;
-idtype29 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var27 = 1;
+var_psignaturenode7 = var_nodearraylist4;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype16 = type_nullable_parser_nodes__ASignature.color;
+idtype17 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var15 = 1;
 } else {
-if(cltype28 >= var_pannotationsnode11->type->table_size) {
-var27 = 0;
+if(cltype16 >= var_psignaturenode7->type->table_size) {
+var15 = 0;
 } else {
-var27 = var_pannotationsnode11->type->type_table[cltype28] == idtype29;
+var15 = var_psignaturenode7->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var27) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19649);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20043);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist9;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype31 = type_nullable_parser_nodes__AExpr.color;
-idtype32 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var30 = 1;
+var_pexprnode9 = var_nodearraylist6;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype19 = type_nullable_parser_nodes__AExpr.color;
+idtype20 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var18 = 1;
 } else {
-if(cltype31 >= var_pexprnode12->type->table_size) {
-var30 = 0;
+if(cltype19 >= var_pexprnode9->type->table_size) {
+var18 = 0;
 } else {
-var30 = var_pexprnode12->type->type_table[cltype31] == idtype32;
+var18 = var_pexprnode9->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var30) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19651);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20045);
+show_backtrace(1);
 }
-var33 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var34 = NULL;
-var35 = NULL;
-var36 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var33, var_pdocnode2, var34, var_pablenode4, var35, var_pvisibilitynode6, var_tkwvarnode7, var36, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var33:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var33);
-var_ppropdefnode1 = var33;
+var21 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var22 = NULL;
+var23 = NULL;
+var24 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var21->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var21, var_pdocnode2, var22, var_pvisibilitynode4, var_tkwinitnode5, var23, var_psignaturenode7, var24, var_pexprnode9) /* init_aconcreteinitpropdef on <var21:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var21;
 var_node_list = var_ppropdefnode1;
-var37 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction443> */
-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>*/;
+var25 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction453> */
+var26 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var25) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var26, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction443#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction443__action(val* self, val* p0) {
-parser__ReduceAction443__action(self, p0);
+/* method parser#ReduceAction453#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction453__action(val* self, val* p0) {
+parser__ReduceAction453__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction444#action for (self: ReduceAction444, Parser) */
-void parser__ReduceAction444__action(val* self, val* p0) {
+/* method parser#ReduceAction454#action for (self: ReduceAction454, Parser) */
+void parser__ReduceAction454__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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var12 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
-val* var_pablenode4 /* var pablenode4: nullable Object */;
+val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
 short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
-val* var_tkwredefnode5 /* var tkwredefnode5: nullable Object */;
+val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var_pvisibilitynode6 /* var pvisibilitynode6: nullable Object */;
+val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
 short int var19 /* : Bool */;
 int cltype20;
 int idtype21;
-val* var_tkwvarnode7 /* var tkwvarnode7: nullable Object */;
+val* var_pexprnode9 /* var pexprnode9: nullable Object */;
 short int var22 /* : Bool */;
 int cltype23;
 int idtype24;
-val* var_tidnode9 /* var tidnode9: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var_ptypenode10 /* var ptypenode10: nullable Object */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-val* var_pannotationsnode11 /* var pannotationsnode11: nullable Object */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-val* var_pexprnode12 /* var pexprnode12: nullable Object */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-val* var37 /* : AAttrPropdef */;
-val* var38 /* : null */;
-val* var39 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AAttrPropdef */;
-long var40 /* : Int */;
-long var41 /* : Int */;
+val* var25 /* : AConcreteInitPropdef */;
+val* var26 /* : null */;
+val* var27 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+long var28 /* : Int */;
+long var29 /* : 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;
+var_nodearraylist1 = var8;
 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;
+var9 = 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", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19686);
-exit(1);
-}
-var_pablenode4 = var_nodearraylist7;
-/* <var_pablenode4:nullable Object> isa nullable AAble */
-cltype14 = type_nullable_parser_nodes__AAble.color;
-idtype15 = type_nullable_parser_nodes__AAble.id;
-if(var_pablenode4 == NULL) {
-var13 = 1;
-} else {
-if(cltype14 >= var_pablenode4->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_pablenode4->type->type_table[cltype14] == idtype15;
-}
-}
-if (!var13) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19688);
-exit(1);
-}
-var_tkwredefnode5 = var_nodearraylist2;
-/* <var_tkwredefnode5:nullable Object> isa nullable TKwredef */
-cltype17 = type_nullable_parser_nodes__TKwredef.color;
-idtype18 = type_nullable_parser_nodes__TKwredef.id;
-if(var_tkwredefnode5 == NULL) {
-var16 = 1;
-} else {
-if(cltype17 >= var_tkwredefnode5->type->table_size) {
-var16 = 0;
-} else {
-var16 = var_tkwredefnode5->type->type_table[cltype17] == idtype18;
-}
-}
-if (!var16) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19690);
-exit(1);
-}
-var_pvisibilitynode6 = var_nodearraylist3;
-/* <var_pvisibilitynode6:nullable Object> isa nullable AVisibility */
-cltype20 = type_nullable_parser_nodes__AVisibility.color;
-idtype21 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode6 == NULL) {
-var19 = 1;
-} else {
-if(cltype20 >= var_pvisibilitynode6->type->table_size) {
-var19 = 0;
+var9 = 0;
 } else {
-var19 = var_pvisibilitynode6->type->type_table[cltype20] == idtype21;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var19) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19692);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20074);
+show_backtrace(1);
 }
-var_tkwvarnode7 = var_nodearraylist4;
-/* <var_tkwvarnode7:nullable Object> isa nullable TKwvar */
-cltype23 = type_nullable_parser_nodes__TKwvar.color;
-idtype24 = type_nullable_parser_nodes__TKwvar.id;
-if(var_tkwvarnode7 == NULL) {
-var22 = 1;
+var_tkwredefnode3 = var_nodearraylist2;
+/* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
+cltype11 = type_nullable_parser_nodes__TKwredef.color;
+idtype12 = type_nullable_parser_nodes__TKwredef.id;
+if(var_tkwredefnode3 == NULL) {
+var10 = 1;
 } else {
-if(cltype23 >= var_tkwvarnode7->type->table_size) {
-var22 = 0;
+if(cltype11 >= var_tkwredefnode3->type->table_size) {
+var10 = 0;
 } else {
-var22 = var_tkwvarnode7->type->type_table[cltype23] == idtype24;
+var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var22) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19694);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20076);
+show_backtrace(1);
 }
-var_tidnode9 = var_nodearraylist5;
-/* <var_tidnode9:nullable Object> isa nullable TId */
-cltype26 = type_nullable_parser_nodes__TId.color;
-idtype27 = type_nullable_parser_nodes__TId.id;
-if(var_tidnode9 == NULL) {
-var25 = 1;
+var_pvisibilitynode4 = var_nodearraylist3;
+/* <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(cltype26 >= var_tidnode9->type->table_size) {
-var25 = 0;
+if(cltype14 >= var_pvisibilitynode4->type->table_size) {
+var13 = 0;
 } else {
-var25 = var_tidnode9->type->type_table[cltype26] == idtype27;
+var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var25) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19696);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20078);
+show_backtrace(1);
 }
-var_ptypenode10 = var_nodearraylist6;
-/* <var_ptypenode10:nullable Object> isa nullable AType */
-cltype29 = type_nullable_parser_nodes__AType.color;
-idtype30 = type_nullable_parser_nodes__AType.id;
-if(var_ptypenode10 == NULL) {
-var28 = 1;
+var_tkwinitnode5 = var_nodearraylist4;
+/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
+cltype17 = type_nullable_parser_nodes__TKwinit.color;
+idtype18 = type_nullable_parser_nodes__TKwinit.id;
+if(var_tkwinitnode5 == NULL) {
+var16 = 1;
 } else {
-if(cltype29 >= var_ptypenode10->type->table_size) {
-var28 = 0;
+if(cltype17 >= var_tkwinitnode5->type->table_size) {
+var16 = 0;
 } else {
-var28 = var_ptypenode10->type->type_table[cltype29] == idtype30;
+var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var28) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19698);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20080);
+show_backtrace(1);
 }
-var_pannotationsnode11 = var_nodearraylist11;
-/* <var_pannotationsnode11:nullable Object> isa nullable AAnnotations */
-cltype32 = type_nullable_parser_nodes__AAnnotations.color;
-idtype33 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode11 == NULL) {
-var31 = 1;
+var_psignaturenode7 = var_nodearraylist5;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype20 = type_nullable_parser_nodes__ASignature.color;
+idtype21 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var19 = 1;
 } else {
-if(cltype32 >= var_pannotationsnode11->type->table_size) {
-var31 = 0;
+if(cltype20 >= var_psignaturenode7->type->table_size) {
+var19 = 0;
 } else {
-var31 = var_pannotationsnode11->type->type_table[cltype32] == idtype33;
+var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var31) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19700);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20082);
+show_backtrace(1);
 }
-var_pexprnode12 = var_nodearraylist10;
-/* <var_pexprnode12:nullable Object> isa nullable AExpr */
-cltype35 = type_nullable_parser_nodes__AExpr.color;
-idtype36 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode12 == NULL) {
-var34 = 1;
+var_pexprnode9 = var_nodearraylist7;
+/* <var_pexprnode9:nullable Object> isa nullable AExpr */
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
+if(var_pexprnode9 == NULL) {
+var22 = 1;
 } else {
-if(cltype35 >= var_pexprnode12->type->table_size) {
-var34 = 0;
+if(cltype23 >= var_pexprnode9->type->table_size) {
+var22 = 0;
 } else {
-var34 = var_pexprnode12->type->type_table[cltype35] == idtype36;
+var22 = var_pexprnode9->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var34) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19702);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20084);
+show_backtrace(1);
 }
-var37 = NEW_parser_nodes__AAttrPropdef(&type_parser_nodes__AAttrPropdef);
-var38 = NULL;
-var39 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var37->class->vft[COLOR_parser_prod__AAttrPropdef__init_aattrpropdef]))(var37, var_pdocnode2, var38, var_pablenode4, var_tkwredefnode5, var_pvisibilitynode6, var_tkwvarnode7, var39, var_tidnode9, var_ptypenode10, var_pannotationsnode11, var_pexprnode12) /* init_aattrpropdef on <var37:AAttrPropdef>*/;
-CHECK_NEW_parser_nodes__AAttrPropdef(var37);
-var_ppropdefnode1 = var37;
+var25 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var26 = NULL;
+var27 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var25, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var26, var_psignaturenode7, var27, var_pexprnode9) /* init_aconcreteinitpropdef on <var25:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var40 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction444> */
-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>*/;
+var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction454> */
+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>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction444#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction444__action(val* self, val* p0) {
-parser__ReduceAction444__action(self, p0);
+/* method parser#ReduceAction454#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction454__action(val* self, val* p0) {
+parser__ReduceAction454__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction445#action for (self: ReduceAction445, Parser) */
-void parser__ReduceAction445__action(val* self, val* p0) {
+/* method parser#ReduceAction455#action for (self: ReduceAction455, Parser) */
+void parser__ReduceAction455__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* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var7 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
 val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-val* var20 /* : AConcreteInitPropdef */;
-val* var21 /* : null */;
-val* var22 /* : null */;
-val* var23 /* : null */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AConcreteInitPropdef */;
+val* var26 /* : null */;
+val* var27 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var24 /* : Int */;
-long var25 /* : Int */;
+long var28 /* : Int */;
+long var29 /* : 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;
+var_nodearraylist8 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var2;
+var_nodearraylist7 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var3;
+var_nodearraylist6 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var4;
+var_nodearraylist5 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var5;
+var_nodearraylist4 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var6;
+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;
 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) {
-var7 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var7 = 0;
+var9 = 0;
 } else {
-var7 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var7) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19732);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20113);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype9 = type_nullable_parser_nodes__AVisibility.color;
-idtype10 = type_nullable_parser_nodes__AVisibility.id;
+cltype11 = type_nullable_parser_nodes__AVisibility.color;
+idtype12 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var8 = 1;
+var10 = 1;
 } else {
-if(cltype9 >= var_pvisibilitynode4->type->table_size) {
-var8 = 0;
+if(cltype11 >= var_pvisibilitynode4->type->table_size) {
+var10 = 0;
 } else {
-var8 = var_pvisibilitynode4->type->type_table[cltype9] == idtype10;
+var10 = var_pvisibilitynode4->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19734);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20115);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist3;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype12 = type_nullable_parser_nodes__TKwinit.color;
-idtype13 = type_nullable_parser_nodes__TKwinit.id;
+cltype14 = type_nullable_parser_nodes__TKwinit.color;
+idtype15 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var11 = 1;
+var13 = 1;
 } else {
-if(cltype12 >= var_tkwinitnode5->type->table_size) {
-var11 = 0;
+if(cltype14 >= var_tkwinitnode5->type->table_size) {
+var13 = 0;
 } else {
-var11 = var_tkwinitnode5->type->type_table[cltype12] == idtype13;
+var13 = var_tkwinitnode5->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var11) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19736);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20117);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist4;
+var_pmethidnode6 = var_nodearraylist4;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype17 = type_nullable_parser_nodes__AMethid.color;
+idtype18 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var16 = 1;
+} else {
+if(cltype17 >= var_pmethidnode6->type->table_size) {
+var16 = 0;
+} else {
+var16 = var_pmethidnode6->type->type_table[cltype17] == idtype18;
+}
+}
+if (!var16) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20119);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist5;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype15 = type_nullable_parser_nodes__ASignature.color;
-idtype16 = type_nullable_parser_nodes__ASignature.id;
+cltype20 = type_nullable_parser_nodes__ASignature.color;
+idtype21 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var14 = 1;
+var19 = 1;
 } else {
-if(cltype15 >= var_psignaturenode7->type->table_size) {
-var14 = 0;
+if(cltype20 >= var_psignaturenode7->type->table_size) {
+var19 = 0;
 } else {
-var14 = var_psignaturenode7->type->type_table[cltype15] == idtype16;
+var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var14) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19738);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20121);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist6;
+var_pexprnode9 = var_nodearraylist7;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype18 = type_nullable_parser_nodes__AExpr.color;
-idtype19 = type_nullable_parser_nodes__AExpr.id;
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var17 = 1;
+var22 = 1;
 } else {
-if(cltype18 >= var_pexprnode9->type->table_size) {
-var17 = 0;
+if(cltype23 >= var_pexprnode9->type->table_size) {
+var22 = 0;
 } else {
-var17 = var_pexprnode9->type->type_table[cltype18] == idtype19;
+var22 = var_pexprnode9->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var17) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19740);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20123);
+show_backtrace(1);
 }
-var20 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var21 = NULL;
-var22 = NULL;
-var23 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var20->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var20, var_pdocnode2, var21, var_pvisibilitynode4, var_tkwinitnode5, var22, var_psignaturenode7, var23, var_pexprnode9) /* init_aconcreteinitpropdef on <var20:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var20);
-var_ppropdefnode1 = var20;
-var_node_list = var_ppropdefnode1;
-var24 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction445> */
-var25 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var24) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var25, var_node_list) /* push on <var_p:Parser>*/;
+var25 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var26 = NULL;
+var27 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var25, var_pdocnode2, var26, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var27, var_pexprnode9) /* init_aconcreteinitpropdef on <var25:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var25;
+var_node_list = var_ppropdefnode1;
+var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction455> */
+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>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction445#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction445__action(val* self, val* p0) {
-parser__ReduceAction445__action(self, p0);
+/* method parser#ReduceAction455#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction455__action(val* self, val* p0) {
+parser__ReduceAction455__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction446#action for (self: ReduceAction446, Parser) */
-void parser__ReduceAction446__action(val* self, val* p0) {
+/* method parser#ReduceAction456#action for (self: ReduceAction456, Parser) */
+void parser__ReduceAction456__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_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
 val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var24 /* : AConcreteInitPropdef */;
-val* var25 /* : null */;
-val* var26 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AConcreteInitPropdef */;
+val* var30 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var27 /* : Int */;
-long var28 /* : 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_nodearraylist7 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+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;
 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) {
-var8 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var10 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19768);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20153);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype10 = type_nullable_parser_nodes__TKwredef.color;
-idtype11 = type_nullable_parser_nodes__TKwredef.id;
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var9 = 1;
+var11 = 1;
 } else {
-if(cltype10 >= var_tkwredefnode3->type->table_size) {
-var9 = 0;
+if(cltype12 >= var_tkwredefnode3->type->table_size) {
+var11 = 0;
 } else {
-var9 = var_tkwredefnode3->type->type_table[cltype10] == idtype11;
+var11 = var_tkwredefnode3->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var9) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19770);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20155);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype13 = type_nullable_parser_nodes__AVisibility.color;
-idtype14 = type_nullable_parser_nodes__AVisibility.id;
+cltype15 = type_nullable_parser_nodes__AVisibility.color;
+idtype16 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var12 = 1;
+var14 = 1;
 } else {
-if(cltype13 >= var_pvisibilitynode4->type->table_size) {
-var12 = 0;
+if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+var14 = 0;
 } else {
-var12 = var_pvisibilitynode4->type->type_table[cltype13] == idtype14;
+var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var12) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19772);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20157);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist4;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype16 = type_nullable_parser_nodes__TKwinit.color;
-idtype17 = type_nullable_parser_nodes__TKwinit.id;
+cltype18 = type_nullable_parser_nodes__TKwinit.color;
+idtype19 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var15 = 1;
+var17 = 1;
 } else {
-if(cltype16 >= var_tkwinitnode5->type->table_size) {
-var15 = 0;
+if(cltype18 >= var_tkwinitnode5->type->table_size) {
+var17 = 0;
 } else {
-var15 = var_tkwinitnode5->type->type_table[cltype16] == idtype17;
+var17 = var_tkwinitnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var15) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19774);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20159);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist5;
+var_pmethidnode6 = var_nodearraylist5;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype21 = type_nullable_parser_nodes__AMethid.color;
+idtype22 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_pmethidnode6->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_pmethidnode6->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20161);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist6;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype19 = type_nullable_parser_nodes__ASignature.color;
-idtype20 = type_nullable_parser_nodes__ASignature.id;
+cltype24 = type_nullable_parser_nodes__ASignature.color;
+idtype25 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var18 = 1;
+var23 = 1;
 } else {
-if(cltype19 >= var_psignaturenode7->type->table_size) {
-var18 = 0;
+if(cltype24 >= var_psignaturenode7->type->table_size) {
+var23 = 0;
 } else {
-var18 = var_psignaturenode7->type->type_table[cltype19] == idtype20;
+var23 = var_psignaturenode7->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var18) {
+if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19776);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20163);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist7;
+var_pexprnode9 = var_nodearraylist8;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype22 = type_nullable_parser_nodes__AExpr.color;
-idtype23 = type_nullable_parser_nodes__AExpr.id;
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var21 = 1;
+var26 = 1;
 } else {
-if(cltype22 >= var_pexprnode9->type->table_size) {
-var21 = 0;
+if(cltype27 >= var_pexprnode9->type->table_size) {
+var26 = 0;
 } else {
-var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
+var26 = var_pexprnode9->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var21) {
+if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19778);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20165);
+show_backtrace(1);
 }
-var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var25 = NULL;
-var26 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var25, var_psignaturenode7, var26, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var24);
-var_ppropdefnode1 = var24;
+var29 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var29, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var30, var_pexprnode9) /* init_aconcreteinitpropdef on <var29:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction446> */
-var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction456> */
+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#ReduceAction446#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction446__action(val* self, val* p0) {
-parser__ReduceAction446__action(self, p0);
+/* method parser#ReduceAction456#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction456__action(val* self, val* p0) {
+parser__ReduceAction456__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction447#action for (self: ReduceAction447, Parser) */
-void parser__ReduceAction447__action(val* self, val* p0) {
+/* method parser#ReduceAction457#action for (self: ReduceAction457, Parser) */
+void parser__ReduceAction457__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_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var9 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
 val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var16 /* : Bool */;
+int cltype17;
+int idtype18;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var19 /* : Bool */;
+int cltype20;
+int idtype21;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var24 /* : AConcreteInitPropdef */;
-val* var25 /* : null */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
+val* var25 /* : AConcreteInitPropdef */;
 val* var26 /* : null */;
+val* var27 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var27 /* : Int */;
 long var28 /* : Int */;
+long var29 /* : 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_nodearraylist2 = var7;
+var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var8;
 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) {
-var8 = 1;
+var9 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var9 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var9 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19806);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20194);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype10 = type_nullable_parser_nodes__AVisibility.color;
-idtype11 = type_nullable_parser_nodes__AVisibility.id;
+cltype11 = type_nullable_parser_nodes__AVisibility.color;
+idtype12 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var9 = 1;
+var10 = 1;
 } else {
-if(cltype10 >= var_pvisibilitynode4->type->table_size) {
-var9 = 0;
+if(cltype11 >= var_pvisibilitynode4->type->table_size) {
+var10 = 0;
 } else {
-var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
+var10 = var_pvisibilitynode4->type->type_table[cltype11] == idtype12;
 }
 }
-if (!var9) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19808);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20196);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist3;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype13 = type_nullable_parser_nodes__TKwinit.color;
-idtype14 = type_nullable_parser_nodes__TKwinit.id;
+cltype14 = type_nullable_parser_nodes__TKwinit.color;
+idtype15 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var12 = 1;
+var13 = 1;
 } else {
-if(cltype13 >= var_tkwinitnode5->type->table_size) {
-var12 = 0;
+if(cltype14 >= var_tkwinitnode5->type->table_size) {
+var13 = 0;
 } else {
-var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
+var13 = var_tkwinitnode5->type->type_table[cltype14] == idtype15;
 }
 }
-if (!var12) {
+if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19810);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20198);
+show_backtrace(1);
 }
-var_pmethidnode6 = var_nodearraylist4;
-/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
-cltype16 = type_nullable_parser_nodes__AMethid.color;
-idtype17 = type_nullable_parser_nodes__AMethid.id;
-if(var_pmethidnode6 == NULL) {
-var15 = 1;
+var_psignaturenode7 = var_nodearraylist4;
+/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
+cltype17 = type_nullable_parser_nodes__ASignature.color;
+idtype18 = type_nullable_parser_nodes__ASignature.id;
+if(var_psignaturenode7 == NULL) {
+var16 = 1;
 } else {
-if(cltype16 >= var_pmethidnode6->type->table_size) {
-var15 = 0;
+if(cltype17 >= var_psignaturenode7->type->table_size) {
+var16 = 0;
 } else {
-var15 = var_pmethidnode6->type->type_table[cltype16] == idtype17;
+var16 = var_psignaturenode7->type->type_table[cltype17] == idtype18;
 }
 }
-if (!var15) {
+if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19812);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20200);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist5;
-/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype19 = type_nullable_parser_nodes__ASignature.color;
-idtype20 = type_nullable_parser_nodes__ASignature.id;
-if(var_psignaturenode7 == NULL) {
-var18 = 1;
+var_pannotationsnode8 = var_nodearraylist5;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype20 = type_nullable_parser_nodes__AAnnotations.color;
+idtype21 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var19 = 1;
 } else {
-if(cltype19 >= var_psignaturenode7->type->table_size) {
-var18 = 0;
+if(cltype20 >= var_pannotationsnode8->type->table_size) {
+var19 = 0;
 } else {
-var18 = var_psignaturenode7->type->type_table[cltype19] == idtype20;
+var19 = var_pannotationsnode8->type->type_table[cltype20] == idtype21;
 }
 }
-if (!var18) {
+if (!var19) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19814);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20202);
+show_backtrace(1);
 }
 var_pexprnode9 = var_nodearraylist7;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype22 = type_nullable_parser_nodes__AExpr.color;
-idtype23 = type_nullable_parser_nodes__AExpr.id;
+cltype23 = type_nullable_parser_nodes__AExpr.color;
+idtype24 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var21 = 1;
+var22 = 1;
 } else {
-if(cltype22 >= var_pexprnode9->type->table_size) {
-var21 = 0;
+if(cltype23 >= var_pexprnode9->type->table_size) {
+var22 = 0;
 } else {
-var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
+var22 = var_pexprnode9->type->type_table[cltype23] == idtype24;
 }
 }
-if (!var21) {
+if (!var22) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19816);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20204);
+show_backtrace(1);
 }
-var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var25 = NULL;
+var25 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
 var26 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var25, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var26, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var24);
-var_ppropdefnode1 = var24;
+var27 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var25, var_pdocnode2, var26, var_pvisibilitynode4, var_tkwinitnode5, var27, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var25:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var25;
 var_node_list = var_ppropdefnode1;
-var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction447> */
-var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
+var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction457> */
+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>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction447#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction447__action(val* self, val* p0) {
-parser__ReduceAction447__action(self, p0);
+/* method parser#ReduceAction457#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction457__action(val* self, val* p0) {
+parser__ReduceAction457__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction448#action for (self: ReduceAction448, Parser) */
-void parser__ReduceAction448__action(val* self, val* p0) {
+/* method parser#ReduceAction458#action for (self: ReduceAction458, Parser) */
+void parser__ReduceAction458__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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 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_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : AConcreteInitPropdef */;
-val* var29 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AConcreteInitPropdef */;
+val* var30 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-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;
+var_nodearraylist2 = var8;
+var9 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
+var_nodearraylist1 = var9;
 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) {
-var9 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var10 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19845);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20234);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype11 = type_nullable_parser_nodes__TKwredef.color;
-idtype12 = type_nullable_parser_nodes__TKwredef.id;
+cltype12 = type_nullable_parser_nodes__TKwredef.color;
+idtype13 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var10 = 1;
+var11 = 1;
 } else {
-if(cltype11 >= var_tkwredefnode3->type->table_size) {
-var10 = 0;
+if(cltype12 >= var_tkwredefnode3->type->table_size) {
+var11 = 0;
 } else {
-var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
+var11 = var_tkwredefnode3->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var10) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19847);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20236);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <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) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19849);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20238);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist4;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype17 = type_nullable_parser_nodes__TKwinit.color;
-idtype18 = type_nullable_parser_nodes__TKwinit.id;
+cltype18 = type_nullable_parser_nodes__TKwinit.color;
+idtype19 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var16 = 1;
-} else {
-if(cltype17 >= var_tkwinitnode5->type->table_size) {
-var16 = 0;
-} else {
-var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
-}
-}
-if (!var16) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19851);
-exit(1);
-}
-var_pmethidnode6 = var_nodearraylist5;
-/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
-cltype20 = type_nullable_parser_nodes__AMethid.color;
-idtype21 = type_nullable_parser_nodes__AMethid.id;
-if(var_pmethidnode6 == NULL) {
-var19 = 1;
+var17 = 1;
 } else {
-if(cltype20 >= var_pmethidnode6->type->table_size) {
-var19 = 0;
+if(cltype18 >= var_tkwinitnode5->type->table_size) {
+var17 = 0;
 } else {
-var19 = var_pmethidnode6->type->type_table[cltype20] == idtype21;
+var17 = var_tkwinitnode5->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var19) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19853);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20240);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist6;
+var_psignaturenode7 = var_nodearraylist5;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype23 = type_nullable_parser_nodes__ASignature.color;
-idtype24 = type_nullable_parser_nodes__ASignature.id;
+cltype21 = type_nullable_parser_nodes__ASignature.color;
+idtype22 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var22 = 1;
+var20 = 1;
 } else {
-if(cltype23 >= var_psignaturenode7->type->table_size) {
-var22 = 0;
+if(cltype21 >= var_psignaturenode7->type->table_size) {
+var20 = 0;
 } else {
-var22 = var_psignaturenode7->type->type_table[cltype23] == idtype24;
+var20 = var_psignaturenode7->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var22) {
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20242);
+show_backtrace(1);
+}
+var_pannotationsnode8 = var_nodearraylist6;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype24 = type_nullable_parser_nodes__AAnnotations.color;
+idtype25 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var23 = 1;
+} else {
+if(cltype24 >= var_pannotationsnode8->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_pannotationsnode8->type->type_table[cltype24] == idtype25;
+}
+}
+if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19855);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20244);
+show_backtrace(1);
 }
 var_pexprnode9 = var_nodearraylist8;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype26 = type_nullable_parser_nodes__AExpr.color;
-idtype27 = type_nullable_parser_nodes__AExpr.id;
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var25 = 1;
+var26 = 1;
 } else {
-if(cltype26 >= var_pexprnode9->type->table_size) {
-var25 = 0;
+if(cltype27 >= var_pexprnode9->type->table_size) {
+var26 = 0;
 } else {
-var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
+var26 = var_pexprnode9->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var25) {
+if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19857);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20246);
+show_backtrace(1);
 }
-var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var29 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var29, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var28);
-var_ppropdefnode1 = var28;
+var29 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var29, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var30, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var29:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction448> */
-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>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction458> */
+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#ReduceAction448#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction448__action(val* self, val* p0) {
-parser__ReduceAction448__action(self, p0);
+/* method parser#ReduceAction458#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction458__action(val* self, val* p0) {
+parser__ReduceAction458__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction449#action for (self: ReduceAction449, Parser) */
-void parser__ReduceAction449__action(val* self, val* p0) {
+/* method parser#ReduceAction459#action for (self: ReduceAction459, Parser) */
+void parser__ReduceAction459__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_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-val* var24 /* : AConcreteInitPropdef */;
-val* var25 /* : null */;
-val* var26 /* : null */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+val* var29 /* : AConcreteInitPropdef */;
+val* var30 /* : null */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var27 /* : Int */;
-long var28 /* : 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_nodearraylist7 = var1;
+var_nodearraylist9 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist8 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist7 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist6 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist5 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
+var_nodearraylist4 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+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;
 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) {
-var8 = 1;
+var10 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var10 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var10 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19885);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20276);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype10 = type_nullable_parser_nodes__AVisibility.color;
-idtype11 = type_nullable_parser_nodes__AVisibility.id;
+cltype12 = type_nullable_parser_nodes__AVisibility.color;
+idtype13 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var9 = 1;
+var11 = 1;
 } else {
-if(cltype10 >= var_pvisibilitynode4->type->table_size) {
-var9 = 0;
+if(cltype12 >= var_pvisibilitynode4->type->table_size) {
+var11 = 0;
 } else {
-var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
+var11 = var_pvisibilitynode4->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var9) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19887);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20278);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist3;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype13 = type_nullable_parser_nodes__TKwinit.color;
-idtype14 = type_nullable_parser_nodes__TKwinit.id;
+cltype15 = type_nullable_parser_nodes__TKwinit.color;
+idtype16 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var12 = 1;
+var14 = 1;
 } else {
-if(cltype13 >= var_tkwinitnode5->type->table_size) {
-var12 = 0;
+if(cltype15 >= var_tkwinitnode5->type->table_size) {
+var14 = 0;
 } else {
-var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
+var14 = var_tkwinitnode5->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var12) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19889);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20280);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist4;
+var_pmethidnode6 = var_nodearraylist4;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype18 = type_nullable_parser_nodes__AMethid.color;
+idtype19 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var17 = 1;
+} else {
+if(cltype18 >= var_pmethidnode6->type->table_size) {
+var17 = 0;
+} else {
+var17 = var_pmethidnode6->type->type_table[cltype18] == idtype19;
+}
+}
+if (!var17) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20282);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist5;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype16 = type_nullable_parser_nodes__ASignature.color;
-idtype17 = type_nullable_parser_nodes__ASignature.id;
+cltype21 = type_nullable_parser_nodes__ASignature.color;
+idtype22 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var15 = 1;
+var20 = 1;
 } else {
-if(cltype16 >= var_psignaturenode7->type->table_size) {
-var15 = 0;
+if(cltype21 >= var_psignaturenode7->type->table_size) {
+var20 = 0;
 } else {
-var15 = var_psignaturenode7->type->type_table[cltype16] == idtype17;
+var20 = var_psignaturenode7->type->type_table[cltype21] == idtype22;
 }
 }
-if (!var15) {
+if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19891);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20284);
+show_backtrace(1);
 }
-var_pannotationsnode8 = var_nodearraylist5;
+var_pannotationsnode8 = var_nodearraylist6;
 /* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
-cltype19 = type_nullable_parser_nodes__AAnnotations.color;
-idtype20 = type_nullable_parser_nodes__AAnnotations.id;
+cltype24 = type_nullable_parser_nodes__AAnnotations.color;
+idtype25 = type_nullable_parser_nodes__AAnnotations.id;
 if(var_pannotationsnode8 == NULL) {
-var18 = 1;
+var23 = 1;
 } else {
-if(cltype19 >= var_pannotationsnode8->type->table_size) {
-var18 = 0;
+if(cltype24 >= var_pannotationsnode8->type->table_size) {
+var23 = 0;
 } else {
-var18 = var_pannotationsnode8->type->type_table[cltype19] == idtype20;
+var23 = var_pannotationsnode8->type->type_table[cltype24] == idtype25;
 }
 }
-if (!var18) {
+if (!var23) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19893);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20286);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist7;
+var_pexprnode9 = var_nodearraylist8;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype22 = type_nullable_parser_nodes__AExpr.color;
-idtype23 = type_nullable_parser_nodes__AExpr.id;
+cltype27 = type_nullable_parser_nodes__AExpr.color;
+idtype28 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var21 = 1;
+var26 = 1;
 } else {
-if(cltype22 >= var_pexprnode9->type->table_size) {
-var21 = 0;
+if(cltype27 >= var_pexprnode9->type->table_size) {
+var26 = 0;
 } else {
-var21 = var_pexprnode9->type->type_table[cltype22] == idtype23;
+var26 = var_pexprnode9->type->type_table[cltype27] == idtype28;
 }
 }
-if (!var21) {
+if (!var26) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19895);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20288);
+show_backtrace(1);
 }
-var24 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var25 = NULL;
-var26 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var24->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var24, var_pdocnode2, var25, var_pvisibilitynode4, var_tkwinitnode5, var26, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var24:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var24);
-var_ppropdefnode1 = var24;
+var29 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+var30 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var29->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var29, var_pdocnode2, var30, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var29:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var29;
 var_node_list = var_ppropdefnode1;
-var27 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction449> */
-var28 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var27) /* go_to on <var_p:Parser>*/;
-((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var28, var_node_list) /* push on <var_p:Parser>*/;
+var31 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction459> */
+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#ReduceAction449#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction449__action(val* self, val* p0) {
-parser__ReduceAction449__action(self, p0);
+/* method parser#ReduceAction459#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction459__action(val* self, val* p0) {
+parser__ReduceAction459__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction450#action for (self: ReduceAction450, Parser) */
-void parser__ReduceAction450__action(val* self, val* p0) {
+/* method parser#ReduceAction460#action for (self: ReduceAction460, Parser) */
+void parser__ReduceAction460__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_nodearraylist10 /* var nodearraylist10: nullable Object */;
 val* var2 /* : nullable Object */;
-val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
+val* var_nodearraylist9 /* var nodearraylist9: nullable Object */;
 val* var3 /* : nullable Object */;
-val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
+val* var_nodearraylist8 /* var nodearraylist8: nullable Object */;
 val* var4 /* : nullable Object */;
-val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
+val* var_nodearraylist7 /* var nodearraylist7: nullable Object */;
 val* var5 /* : nullable Object */;
-val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
+val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
 val* var6 /* : nullable Object */;
-val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
+val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
 val* var7 /* : nullable Object */;
-val* var_nodearraylist2 /* var nodearraylist2: 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* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
 val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
 val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
+short int var27 /* : Bool */;
+int cltype28;
+int idtype29;
 val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : AConcreteInitPropdef */;
-val* var29 /* : null */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+val* var33 /* : AConcreteInitPropdef */;
 val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var30 /* : Int */;
-long var31 /* : 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_nodearraylist8 = var1;
+var_nodearraylist10 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist9 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist8 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist7 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist6 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist5 = var6;
 var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var7;
+var_nodearraylist4 = var7;
 var8 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var8;
+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;
 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) {
-var9 = 1;
+var11 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var11 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var11 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19924);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20319);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype11 = type_nullable_parser_nodes__TKwredef.color;
-idtype12 = type_nullable_parser_nodes__TKwredef.id;
+cltype13 = type_nullable_parser_nodes__TKwredef.color;
+idtype14 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var10 = 1;
+var12 = 1;
 } else {
-if(cltype11 >= var_tkwredefnode3->type->table_size) {
-var10 = 0;
+if(cltype13 >= var_tkwredefnode3->type->table_size) {
+var12 = 0;
 } else {
-var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
+var12 = var_tkwredefnode3->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var10) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19926);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20321);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
+cltype16 = type_nullable_parser_nodes__AVisibility.color;
+idtype17 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var13 = 1;
+var15 = 1;
 } else {
-if(cltype14 >= var_pvisibilitynode4->type->table_size) {
-var13 = 0;
+if(cltype16 >= var_pvisibilitynode4->type->table_size) {
+var15 = 0;
 } else {
-var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
+var15 = var_pvisibilitynode4->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var13) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19928);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20323);
+show_backtrace(1);
 }
 var_tkwinitnode5 = var_nodearraylist4;
 /* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype17 = type_nullable_parser_nodes__TKwinit.color;
-idtype18 = type_nullable_parser_nodes__TKwinit.id;
+cltype19 = type_nullable_parser_nodes__TKwinit.color;
+idtype20 = type_nullable_parser_nodes__TKwinit.id;
 if(var_tkwinitnode5 == NULL) {
-var16 = 1;
+var18 = 1;
 } else {
-if(cltype17 >= var_tkwinitnode5->type->table_size) {
-var16 = 0;
+if(cltype19 >= var_tkwinitnode5->type->table_size) {
+var18 = 0;
 } else {
-var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
+var18 = var_tkwinitnode5->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var16) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19930);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20325);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist5;
+var_pmethidnode6 = var_nodearraylist5;
+/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
+cltype22 = type_nullable_parser_nodes__AMethid.color;
+idtype23 = type_nullable_parser_nodes__AMethid.id;
+if(var_pmethidnode6 == NULL) {
+var21 = 1;
+} else {
+if(cltype22 >= var_pmethidnode6->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_pmethidnode6->type->type_table[cltype22] == idtype23;
+}
+}
+if (!var21) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20327);
+show_backtrace(1);
+}
+var_psignaturenode7 = var_nodearraylist6;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype20 = type_nullable_parser_nodes__ASignature.color;
-idtype21 = type_nullable_parser_nodes__ASignature.id;
+cltype25 = type_nullable_parser_nodes__ASignature.color;
+idtype26 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var19 = 1;
+var24 = 1;
 } else {
-if(cltype20 >= var_psignaturenode7->type->table_size) {
-var19 = 0;
+if(cltype25 >= var_psignaturenode7->type->table_size) {
+var24 = 0;
 } else {
-var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
+var24 = var_psignaturenode7->type->type_table[cltype25] == idtype26;
 }
 }
-if (!var19) {
+if (!var24) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19932);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20329);
+show_backtrace(1);
 }
-var_pannotationsnode8 = var_nodearraylist6;
+var_pannotationsnode8 = var_nodearraylist7;
 /* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
-cltype23 = type_nullable_parser_nodes__AAnnotations.color;
-idtype24 = type_nullable_parser_nodes__AAnnotations.id;
+cltype28 = type_nullable_parser_nodes__AAnnotations.color;
+idtype29 = type_nullable_parser_nodes__AAnnotations.id;
 if(var_pannotationsnode8 == NULL) {
-var22 = 1;
+var27 = 1;
 } else {
-if(cltype23 >= var_pannotationsnode8->type->table_size) {
-var22 = 0;
+if(cltype28 >= var_pannotationsnode8->type->table_size) {
+var27 = 0;
 } else {
-var22 = var_pannotationsnode8->type->type_table[cltype23] == idtype24;
+var27 = var_pannotationsnode8->type->type_table[cltype28] == idtype29;
 }
 }
-if (!var22) {
+if (!var27) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19934);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20331);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist8;
+var_pexprnode9 = var_nodearraylist9;
 /* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype26 = type_nullable_parser_nodes__AExpr.color;
-idtype27 = type_nullable_parser_nodes__AExpr.id;
+cltype31 = type_nullable_parser_nodes__AExpr.color;
+idtype32 = type_nullable_parser_nodes__AExpr.id;
 if(var_pexprnode9 == NULL) {
-var25 = 1;
+var30 = 1;
 } else {
-if(cltype26 >= var_pexprnode9->type->table_size) {
-var25 = 0;
+if(cltype31 >= var_pexprnode9->type->table_size) {
+var30 = 0;
 } else {
-var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
+var30 = var_pexprnode9->type->type_table[cltype31] == idtype32;
 }
 }
-if (!var25) {
+if (!var30) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19936);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20333);
+show_backtrace(1);
 }
-var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var29 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var29, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var28);
-var_ppropdefnode1 = var28;
+var33 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var33->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var33, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var33:AConcreteInitPropdef>*/;
+var_ppropdefnode1 = var33;
 var_node_list = var_ppropdefnode1;
-var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction450> */
-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>*/;
+var34 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction460> */
+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#ReduceAction450#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction450__action(val* self, val* p0) {
-parser__ReduceAction450__action(self, p0);
+/* method parser#ReduceAction460#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction460__action(val* self, val* p0) {
+parser__ReduceAction460__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction451#action for (self: ReduceAction451, Parser) */
-void parser__ReduceAction451__action(val* self, val* p0) {
+/* method parser#ReduceAction461#action for (self: ReduceAction461, Parser) */
+void parser__ReduceAction461__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* var2 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+short int var7 /* : Bool */;
+int cltype8;
+int idtype9;
+val* var_tkwtypenode5 /* var tkwtypenode5: nullable Object */;
 short int var10 /* : Bool */;
 int cltype11;
 int idtype12;
-val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
 short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
-val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+val* var_ptypenode7 /* var ptypenode7: nullable Object */;
 short int var16 /* : Bool */;
 int cltype17;
 int idtype18;
-val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-val* var28 /* : AConcreteInitPropdef */;
-val* var29 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var30 /* : Int */;
-long var31 /* : Int */;
+val* var19 /* : ATypePropdef */;
+val* var20 /* : null */;
+val* var21 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable ATypePropdef */;
+long var22 /* : Int */;
+long var23 /* : 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_nodearraylist5 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist4 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist3 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var5;
 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) {
-var9 = 1;
+var6 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var6 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var6 = var_pdocnode2->type->type_table[cltype] == idtype;
+}
+}
+if (!var6) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20359);
+show_backtrace(1);
+}
+var_pvisibilitynode4 = var_nodearraylist2;
+/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
+cltype8 = type_nullable_parser_nodes__AVisibility.color;
+idtype9 = type_nullable_parser_nodes__AVisibility.id;
+if(var_pvisibilitynode4 == NULL) {
+var7 = 1;
+} else {
+if(cltype8 >= var_pvisibilitynode4->type->table_size) {
+var7 = 0;
+} else {
+var7 = var_pvisibilitynode4->type->type_table[cltype8] == idtype9;
 }
 }
-if (!var9) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19965);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20361);
+show_backtrace(1);
 }
-var_pvisibilitynode4 = var_nodearraylist2;
-/* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
-if(var_pvisibilitynode4 == NULL) {
+var_tkwtypenode5 = var_nodearraylist3;
+/* <var_tkwtypenode5:nullable Object> isa nullable TKwtype */
+cltype11 = type_nullable_parser_nodes__TKwtype.color;
+idtype12 = type_nullable_parser_nodes__TKwtype.id;
+if(var_tkwtypenode5 == NULL) {
 var10 = 1;
 } else {
-if(cltype11 >= var_pvisibilitynode4->type->table_size) {
+if(cltype11 >= var_tkwtypenode5->type->table_size) {
 var10 = 0;
 } else {
-var10 = var_pvisibilitynode4->type->type_table[cltype11] == idtype12;
+var10 = var_tkwtypenode5->type->type_table[cltype11] == idtype12;
 }
 }
 if (!var10) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19967);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20363);
+show_backtrace(1);
 }
-var_tkwinitnode5 = var_nodearraylist3;
-/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype14 = type_nullable_parser_nodes__TKwinit.color;
-idtype15 = type_nullable_parser_nodes__TKwinit.id;
-if(var_tkwinitnode5 == NULL) {
+var_tclassidnode6 = var_nodearraylist4;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype14 = type_nullable_parser_nodes__TClassid.color;
+idtype15 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
 var13 = 1;
 } else {
-if(cltype14 >= var_tkwinitnode5->type->table_size) {
+if(cltype14 >= var_tclassidnode6->type->table_size) {
 var13 = 0;
 } else {
-var13 = var_tkwinitnode5->type->type_table[cltype14] == idtype15;
+var13 = var_tclassidnode6->type->type_table[cltype14] == idtype15;
 }
 }
 if (!var13) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19969);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20365);
+show_backtrace(1);
 }
-var_pmethidnode6 = var_nodearraylist4;
-/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
-cltype17 = type_nullable_parser_nodes__AMethid.color;
-idtype18 = type_nullable_parser_nodes__AMethid.id;
-if(var_pmethidnode6 == NULL) {
+var_ptypenode7 = var_nodearraylist5;
+/* <var_ptypenode7:nullable Object> isa nullable AType */
+cltype17 = type_nullable_parser_nodes__AType.color;
+idtype18 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode7 == NULL) {
 var16 = 1;
 } else {
-if(cltype17 >= var_pmethidnode6->type->table_size) {
+if(cltype17 >= var_ptypenode7->type->table_size) {
 var16 = 0;
 } else {
-var16 = var_pmethidnode6->type->type_table[cltype17] == idtype18;
+var16 = var_ptypenode7->type->type_table[cltype17] == idtype18;
 }
 }
 if (!var16) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19971);
-exit(1);
-}
-var_psignaturenode7 = var_nodearraylist5;
-/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype20 = type_nullable_parser_nodes__ASignature.color;
-idtype21 = type_nullable_parser_nodes__ASignature.id;
-if(var_psignaturenode7 == NULL) {
-var19 = 1;
-} else {
-if(cltype20 >= var_psignaturenode7->type->table_size) {
-var19 = 0;
-} else {
-var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
-}
-}
-if (!var19) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19973);
-exit(1);
-}
-var_pannotationsnode8 = var_nodearraylist6;
-/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
-cltype23 = type_nullable_parser_nodes__AAnnotations.color;
-idtype24 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode8 == NULL) {
-var22 = 1;
-} else {
-if(cltype23 >= var_pannotationsnode8->type->table_size) {
-var22 = 0;
-} else {
-var22 = var_pannotationsnode8->type->type_table[cltype23] == idtype24;
-}
-}
-if (!var22) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19975);
-exit(1);
-}
-var_pexprnode9 = var_nodearraylist8;
-/* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype26 = type_nullable_parser_nodes__AExpr.color;
-idtype27 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode9 == NULL) {
-var25 = 1;
-} else {
-if(cltype26 >= var_pexprnode9->type->table_size) {
-var25 = 0;
-} else {
-var25 = var_pexprnode9->type->type_table[cltype26] == idtype27;
-}
-}
-if (!var25) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 19977);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20367);
+show_backtrace(1);
 }
-var28 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var29 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var28->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var28, var_pdocnode2, var29, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var28:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var28);
-var_ppropdefnode1 = var28;
+var19 = NEW_parser_nodes__ATypePropdef(&type_parser_nodes__ATypePropdef);
+var20 = NULL;
+var21 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*))(var19->class->vft[COLOR_parser_prod__ATypePropdef__init_atypepropdef]))(var19, var_pdocnode2, var20, var_pvisibilitynode4, var_tkwtypenode5, var_tclassidnode6, var_ptypenode7, var21) /* init_atypepropdef on <var19:ATypePropdef>*/;
+var_ppropdefnode1 = var19;
 var_node_list = var_ppropdefnode1;
-var30 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction451> */
-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>*/;
+var22 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction461> */
+var23 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var22) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var23, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction451#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction451__action(val* self, val* p0) {
-parser__ReduceAction451__action(self, p0);
+/* method parser#ReduceAction461#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction461__action(val* self, val* p0) {
+parser__ReduceAction461__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction452#action for (self: ReduceAction452, Parser) */
-void parser__ReduceAction452__action(val* self, val* p0) {
+/* method parser#ReduceAction462#action for (self: ReduceAction462, Parser) */
+void parser__ReduceAction462__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var9 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var10 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
 short int var11 /* : Bool */;
 int cltype12;
 int idtype13;
-val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
+val* var_tkwtypenode5 /* var tkwtypenode5: nullable Object */;
 short int var14 /* : Bool */;
 int cltype15;
 int idtype16;
-val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
 short int var17 /* : Bool */;
 int cltype18;
 int idtype19;
-val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
+val* var_ptypenode7 /* var ptypenode7: nullable Object */;
 short int var20 /* : Bool */;
 int cltype21;
 int idtype22;
-val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var29 /* : Bool */;
-int cltype30;
-int idtype31;
-val* var32 /* : AConcreteInitPropdef */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var33 /* : Int */;
-long var34 /* : Int */;
+val* var23 /* : ATypePropdef */;
+val* var24 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable ATypePropdef */;
+long var25 /* : Int */;
+long var26 /* : 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_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist8 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var5;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var6;
 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) {
-var10 = 1;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var10 = 0;
+var7 = 0;
 } else {
-var10 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var10) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20007);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20393);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype12 = type_nullable_parser_nodes__TKwredef.color;
-idtype13 = type_nullable_parser_nodes__TKwredef.id;
+cltype9 = type_nullable_parser_nodes__TKwredef.color;
+idtype10 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var11 = 1;
+var8 = 1;
 } else {
-if(cltype12 >= var_tkwredefnode3->type->table_size) {
-var11 = 0;
+if(cltype9 >= var_tkwredefnode3->type->table_size) {
+var8 = 0;
 } else {
-var11 = var_tkwredefnode3->type->type_table[cltype12] == idtype13;
+var8 = var_tkwredefnode3->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var11) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20009);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20395);
+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;
+cltype12 = type_nullable_parser_nodes__AVisibility.color;
+idtype13 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
+var11 = 1;
+} else {
+if(cltype12 >= var_pvisibilitynode4->type->table_size) {
+var11 = 0;
+} else {
+var11 = var_pvisibilitynode4->type->type_table[cltype12] == idtype13;
+}
+}
+if (!var11) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20397);
+show_backtrace(1);
+}
+var_tkwtypenode5 = var_nodearraylist4;
+/* <var_tkwtypenode5:nullable Object> isa nullable TKwtype */
+cltype15 = type_nullable_parser_nodes__TKwtype.color;
+idtype16 = type_nullable_parser_nodes__TKwtype.id;
+if(var_tkwtypenode5 == NULL) {
 var14 = 1;
 } else {
-if(cltype15 >= var_pvisibilitynode4->type->table_size) {
+if(cltype15 >= var_tkwtypenode5->type->table_size) {
 var14 = 0;
 } else {
-var14 = var_pvisibilitynode4->type->type_table[cltype15] == idtype16;
+var14 = var_tkwtypenode5->type->type_table[cltype15] == idtype16;
 }
 }
 if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20011);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20399);
+show_backtrace(1);
 }
-var_tkwinitnode5 = var_nodearraylist4;
-/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype18 = type_nullable_parser_nodes__TKwinit.color;
-idtype19 = type_nullable_parser_nodes__TKwinit.id;
-if(var_tkwinitnode5 == NULL) {
+var_tclassidnode6 = var_nodearraylist5;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype18 = type_nullable_parser_nodes__TClassid.color;
+idtype19 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
 var17 = 1;
 } else {
-if(cltype18 >= var_tkwinitnode5->type->table_size) {
+if(cltype18 >= var_tclassidnode6->type->table_size) {
 var17 = 0;
 } else {
-var17 = var_tkwinitnode5->type->type_table[cltype18] == idtype19;
+var17 = var_tclassidnode6->type->type_table[cltype18] == idtype19;
 }
 }
 if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20013);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20401);
+show_backtrace(1);
 }
-var_pmethidnode6 = var_nodearraylist5;
-/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
-cltype21 = type_nullable_parser_nodes__AMethid.color;
-idtype22 = type_nullable_parser_nodes__AMethid.id;
-if(var_pmethidnode6 == NULL) {
+var_ptypenode7 = var_nodearraylist6;
+/* <var_ptypenode7:nullable Object> isa nullable AType */
+cltype21 = type_nullable_parser_nodes__AType.color;
+idtype22 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode7 == NULL) {
 var20 = 1;
 } else {
-if(cltype21 >= var_pmethidnode6->type->table_size) {
+if(cltype21 >= var_ptypenode7->type->table_size) {
 var20 = 0;
 } else {
-var20 = var_pmethidnode6->type->type_table[cltype21] == idtype22;
+var20 = var_ptypenode7->type->type_table[cltype21] == idtype22;
 }
 }
 if (!var20) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20015);
-exit(1);
-}
-var_psignaturenode7 = var_nodearraylist6;
-/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype24 = type_nullable_parser_nodes__ASignature.color;
-idtype25 = type_nullable_parser_nodes__ASignature.id;
-if(var_psignaturenode7 == NULL) {
-var23 = 1;
-} else {
-if(cltype24 >= var_psignaturenode7->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_psignaturenode7->type->type_table[cltype24] == idtype25;
-}
-}
-if (!var23) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20017);
-exit(1);
-}
-var_pannotationsnode8 = var_nodearraylist7;
-/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
-cltype27 = type_nullable_parser_nodes__AAnnotations.color;
-idtype28 = type_nullable_parser_nodes__AAnnotations.id;
-if(var_pannotationsnode8 == NULL) {
-var26 = 1;
-} else {
-if(cltype27 >= var_pannotationsnode8->type->table_size) {
-var26 = 0;
-} else {
-var26 = var_pannotationsnode8->type->type_table[cltype27] == idtype28;
-}
-}
-if (!var26) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20019);
-exit(1);
-}
-var_pexprnode9 = var_nodearraylist9;
-/* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype30 = type_nullable_parser_nodes__AExpr.color;
-idtype31 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode9 == NULL) {
-var29 = 1;
-} else {
-if(cltype30 >= var_pexprnode9->type->table_size) {
-var29 = 0;
-} else {
-var29 = var_pexprnode9->type->type_table[cltype30] == idtype31;
-}
-}
-if (!var29) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20021);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20403);
+show_backtrace(1);
 }
-var32 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var32->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var32, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var_pannotationsnode8, var_pexprnode9) /* init_aconcreteinitpropdef on <var32:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var32);
-var_ppropdefnode1 = var32;
+var23 = NEW_parser_nodes__ATypePropdef(&type_parser_nodes__ATypePropdef);
+var24 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__ATypePropdef__init_atypepropdef]))(var23, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwtypenode5, var_tclassidnode6, var_ptypenode7, var24) /* init_atypepropdef on <var23:ATypePropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var33 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction452> */
-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>*/;
+var25 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction462> */
+var26 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var25) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var26, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction452#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction452__action(val* self, val* p0) {
-parser__ReduceAction452__action(self, p0);
+/* method parser#ReduceAction462#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction462__action(val* self, val* p0) {
+parser__ReduceAction462__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction453#action for (self: ReduceAction453, Parser) */
-void parser__ReduceAction453__action(val* self, val* p0) {
+/* method parser#ReduceAction463#action for (self: ReduceAction463, Parser) */
+void parser__ReduceAction463__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var8 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var9 /* : Bool */;
-int cltype10;
-int idtype11;
-val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var12 /* : Bool */;
-int cltype13;
-int idtype14;
-val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-val* var21 /* : AConcreteInitPropdef */;
-val* var22 /* : null */;
-val* var23 /* : null */;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+val* var_tkwtypenode5 /* var tkwtypenode5: nullable Object */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var_ptypenode7 /* var ptypenode7: nullable Object */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var20 /* : Bool */;
+int cltype21;
+int idtype22;
+val* var23 /* : ATypePropdef */;
 val* var24 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable ATypePropdef */;
 long var25 /* : Int */;
 long var26 /* : 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_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var5;
+var_nodearraylist2 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist2 = var6;
-var7 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist1 = var7;
+var_nodearraylist1 = var6;
 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) {
-var8 = 1;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var8 = 0;
+var7 = 0;
 } else {
-var8 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var8) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20049);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20429);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype10 = type_nullable_parser_nodes__AVisibility.color;
-idtype11 = type_nullable_parser_nodes__AVisibility.id;
+cltype9 = type_nullable_parser_nodes__AVisibility.color;
+idtype10 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var9 = 1;
+var8 = 1;
 } else {
-if(cltype10 >= var_pvisibilitynode4->type->table_size) {
-var9 = 0;
+if(cltype9 >= var_pvisibilitynode4->type->table_size) {
+var8 = 0;
 } else {
-var9 = var_pvisibilitynode4->type->type_table[cltype10] == idtype11;
+var8 = var_pvisibilitynode4->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var9) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20051);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20431);
+show_backtrace(1);
 }
-var_tkwinitnode5 = var_nodearraylist3;
-/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype13 = type_nullable_parser_nodes__TKwinit.color;
-idtype14 = type_nullable_parser_nodes__TKwinit.id;
-if(var_tkwinitnode5 == NULL) {
-var12 = 1;
+var_tkwtypenode5 = var_nodearraylist3;
+/* <var_tkwtypenode5:nullable Object> isa nullable TKwtype */
+cltype12 = type_nullable_parser_nodes__TKwtype.color;
+idtype13 = type_nullable_parser_nodes__TKwtype.id;
+if(var_tkwtypenode5 == NULL) {
+var11 = 1;
 } else {
-if(cltype13 >= var_tkwinitnode5->type->table_size) {
-var12 = 0;
+if(cltype12 >= var_tkwtypenode5->type->table_size) {
+var11 = 0;
 } else {
-var12 = var_tkwinitnode5->type->type_table[cltype13] == idtype14;
+var11 = var_tkwtypenode5->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var12) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20053);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20433);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist4;
-/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype16 = type_nullable_parser_nodes__ASignature.color;
-idtype17 = type_nullable_parser_nodes__ASignature.id;
-if(var_psignaturenode7 == NULL) {
-var15 = 1;
+var_tclassidnode6 = var_nodearraylist4;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype15 = type_nullable_parser_nodes__TClassid.color;
+idtype16 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
+var14 = 1;
 } else {
-if(cltype16 >= var_psignaturenode7->type->table_size) {
-var15 = 0;
+if(cltype15 >= var_tclassidnode6->type->table_size) {
+var14 = 0;
 } else {
-var15 = var_psignaturenode7->type->type_table[cltype16] == idtype17;
+var14 = var_tclassidnode6->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var15) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20055);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20435);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist6;
-/* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype19 = type_nullable_parser_nodes__AExpr.color;
-idtype20 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode9 == NULL) {
-var18 = 1;
+var_ptypenode7 = var_nodearraylist5;
+/* <var_ptypenode7:nullable Object> isa nullable AType */
+cltype18 = type_nullable_parser_nodes__AType.color;
+idtype19 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode7 == NULL) {
+var17 = 1;
 } else {
-if(cltype19 >= var_pexprnode9->type->table_size) {
-var18 = 0;
+if(cltype18 >= var_ptypenode7->type->table_size) {
+var17 = 0;
 } else {
-var18 = var_pexprnode9->type->type_table[cltype19] == idtype20;
+var17 = var_ptypenode7->type->type_table[cltype18] == idtype19;
 }
 }
-if (!var18) {
+if (!var17) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20057);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20437);
+show_backtrace(1);
 }
-var21 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var22 = NULL;
-var23 = NULL;
+var_pannotationsnode8 = var_nodearraylist6;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype21 = type_nullable_parser_nodes__AAnnotations.color;
+idtype22 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var20 = 1;
+} else {
+if(cltype21 >= var_pannotationsnode8->type->table_size) {
+var20 = 0;
+} else {
+var20 = var_pannotationsnode8->type->type_table[cltype21] == idtype22;
+}
+}
+if (!var20) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20439);
+show_backtrace(1);
+}
+var23 = NEW_parser_nodes__ATypePropdef(&type_parser_nodes__ATypePropdef);
 var24 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var21->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var21, var_pdocnode2, var22, var_pvisibilitynode4, var_tkwinitnode5, var23, var_psignaturenode7, var24, var_pexprnode9) /* init_aconcreteinitpropdef on <var21:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var21);
-var_ppropdefnode1 = var21;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*))(var23->class->vft[COLOR_parser_prod__ATypePropdef__init_atypepropdef]))(var23, var_pdocnode2, var24, var_pvisibilitynode4, var_tkwtypenode5, var_tclassidnode6, var_ptypenode7, var_pannotationsnode8) /* init_atypepropdef on <var23:ATypePropdef>*/;
+var_ppropdefnode1 = var23;
 var_node_list = var_ppropdefnode1;
-var25 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction453> */
+var25 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction463> */
 var26 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var25) /* go_to on <var_p:Parser>*/;
 ((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var26, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction453#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction453__action(val* self, val* p0) {
-parser__ReduceAction453__action(self, p0);
+/* method parser#ReduceAction463#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction463__action(val* self, val* p0) {
+parser__ReduceAction463__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction454#action for (self: ReduceAction454, Parser) */
-void parser__ReduceAction454__action(val* self, val* p0) {
+/* method parser#ReduceAction464#action for (self: ReduceAction464, Parser) */
+void parser__ReduceAction464__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* var2 /* : nullable Object */;
 val* var_nodearraylist6 /* var nodearraylist6: nullable Object */;
-val* var4 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var7 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var8 /* : Bool */;
 int cltype;
 int idtype;
 val* var_tkwredefnode3 /* var tkwredefnode3: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
+short int var9 /* : Bool */;
+int cltype10;
+int idtype11;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
-val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AConcreteInitPropdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+val* var_tkwtypenode5 /* var tkwtypenode5: nullable Object */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+val* var_tclassidnode6 /* var tclassidnode6: nullable Object */;
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+val* var_ptypenode7 /* var ptypenode7: nullable Object */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+val* var_pannotationsnode8 /* var pannotationsnode8: nullable Object */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+val* var27 /* : ATypePropdef */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable ATypePropdef */;
 long var28 /* : Int */;
 long var29 /* : 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_nodearraylist7 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist6 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist5 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist4 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist3 = var5;
 var6 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist3 = var6;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var7;
 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) {
-var9 = 1;
+var8 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var8 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var8 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20086);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20466);
+show_backtrace(1);
 }
 var_tkwredefnode3 = var_nodearraylist2;
 /* <var_tkwredefnode3:nullable Object> isa nullable TKwredef */
-cltype11 = type_nullable_parser_nodes__TKwredef.color;
-idtype12 = type_nullable_parser_nodes__TKwredef.id;
+cltype10 = type_nullable_parser_nodes__TKwredef.color;
+idtype11 = type_nullable_parser_nodes__TKwredef.id;
 if(var_tkwredefnode3 == NULL) {
-var10 = 1;
+var9 = 1;
 } else {
-if(cltype11 >= var_tkwredefnode3->type->table_size) {
-var10 = 0;
+if(cltype10 >= var_tkwredefnode3->type->table_size) {
+var9 = 0;
 } else {
-var10 = var_tkwredefnode3->type->type_table[cltype11] == idtype12;
+var9 = var_tkwredefnode3->type->type_table[cltype10] == idtype11;
 }
 }
-if (!var10) {
+if (!var9) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20088);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20468);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist3;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype14 = type_nullable_parser_nodes__AVisibility.color;
-idtype15 = type_nullable_parser_nodes__AVisibility.id;
+cltype13 = type_nullable_parser_nodes__AVisibility.color;
+idtype14 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var13 = 1;
+var12 = 1;
 } else {
-if(cltype14 >= var_pvisibilitynode4->type->table_size) {
-var13 = 0;
+if(cltype13 >= var_pvisibilitynode4->type->table_size) {
+var12 = 0;
 } else {
-var13 = var_pvisibilitynode4->type->type_table[cltype14] == idtype15;
+var12 = var_pvisibilitynode4->type->type_table[cltype13] == idtype14;
 }
 }
-if (!var13) {
+if (!var12) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20090);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20470);
+show_backtrace(1);
 }
-var_tkwinitnode5 = var_nodearraylist4;
-/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype17 = type_nullable_parser_nodes__TKwinit.color;
-idtype18 = type_nullable_parser_nodes__TKwinit.id;
-if(var_tkwinitnode5 == NULL) {
-var16 = 1;
+var_tkwtypenode5 = var_nodearraylist4;
+/* <var_tkwtypenode5:nullable Object> isa nullable TKwtype */
+cltype16 = type_nullable_parser_nodes__TKwtype.color;
+idtype17 = type_nullable_parser_nodes__TKwtype.id;
+if(var_tkwtypenode5 == NULL) {
+var15 = 1;
 } else {
-if(cltype17 >= var_tkwinitnode5->type->table_size) {
-var16 = 0;
+if(cltype16 >= var_tkwtypenode5->type->table_size) {
+var15 = 0;
 } else {
-var16 = var_tkwinitnode5->type->type_table[cltype17] == idtype18;
+var15 = var_tkwtypenode5->type->type_table[cltype16] == idtype17;
 }
 }
-if (!var16) {
+if (!var15) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20092);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20472);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist5;
-/* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype20 = type_nullable_parser_nodes__ASignature.color;
-idtype21 = type_nullable_parser_nodes__ASignature.id;
-if(var_psignaturenode7 == NULL) {
-var19 = 1;
+var_tclassidnode6 = var_nodearraylist5;
+/* <var_tclassidnode6:nullable Object> isa nullable TClassid */
+cltype19 = type_nullable_parser_nodes__TClassid.color;
+idtype20 = type_nullable_parser_nodes__TClassid.id;
+if(var_tclassidnode6 == NULL) {
+var18 = 1;
 } else {
-if(cltype20 >= var_psignaturenode7->type->table_size) {
-var19 = 0;
+if(cltype19 >= var_tclassidnode6->type->table_size) {
+var18 = 0;
 } else {
-var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
+var18 = var_tclassidnode6->type->type_table[cltype19] == idtype20;
 }
 }
-if (!var19) {
+if (!var18) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20094);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20474);
+show_backtrace(1);
 }
-var_pexprnode9 = var_nodearraylist7;
-/* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode9 == NULL) {
-var22 = 1;
+var_ptypenode7 = var_nodearraylist6;
+/* <var_ptypenode7:nullable Object> isa nullable AType */
+cltype22 = type_nullable_parser_nodes__AType.color;
+idtype23 = type_nullable_parser_nodes__AType.id;
+if(var_ptypenode7 == NULL) {
+var21 = 1;
 } else {
-if(cltype23 >= var_pexprnode9->type->table_size) {
-var22 = 0;
+if(cltype22 >= var_ptypenode7->type->table_size) {
+var21 = 0;
 } else {
-var22 = var_pexprnode9->type->type_table[cltype23] == idtype24;
+var21 = var_ptypenode7->type->type_table[cltype22] == idtype23;
 }
 }
-if (!var22) {
+if (!var21) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20096);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20476);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var26 = NULL;
-var27 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var25, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwinitnode5, var26, var_psignaturenode7, var27, var_pexprnode9) /* init_aconcreteinitpropdef on <var25:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var25);
-var_ppropdefnode1 = var25;
+var_pannotationsnode8 = var_nodearraylist7;
+/* <var_pannotationsnode8:nullable Object> isa nullable AAnnotations */
+cltype25 = type_nullable_parser_nodes__AAnnotations.color;
+idtype26 = type_nullable_parser_nodes__AAnnotations.id;
+if(var_pannotationsnode8 == NULL) {
+var24 = 1;
+} else {
+if(cltype25 >= var_pannotationsnode8->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_pannotationsnode8->type->type_table[cltype25] == idtype26;
+}
+}
+if (!var24) {
+fprintf(stderr, "Runtime error: %s", "Assert failed");
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20478);
+show_backtrace(1);
+}
+var27 = NEW_parser_nodes__ATypePropdef(&type_parser_nodes__ATypePropdef);
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*))(var27->class->vft[COLOR_parser_prod__ATypePropdef__init_atypepropdef]))(var27, var_pdocnode2, var_tkwredefnode3, var_pvisibilitynode4, var_tkwtypenode5, var_tclassidnode6, var_ptypenode7, var_pannotationsnode8) /* init_atypepropdef on <var27:ATypePropdef>*/;
+var_ppropdefnode1 = var27;
 var_node_list = var_ppropdefnode1;
-var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction454> */
+var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction464> */
 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>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction454#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction454__action(val* self, val* p0) {
-parser__ReduceAction454__action(self, p0);
+/* method parser#ReduceAction464#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction464__action(val* self, val* p0) {
+parser__ReduceAction464__action(self, p0);
 RET_LABEL:;
 }
-/* method parser#ReduceAction455#action for (self: ReduceAction455, Parser) */
-void parser__ReduceAction455__action(val* self, val* p0) {
+/* method parser#ReduceAction465#action for (self: ReduceAction465, Parser) */
+void parser__ReduceAction465__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* var2 /* : nullable Object */;
 val* var_nodearraylist5 /* var nodearraylist5: nullable Object */;
-val* var5 /* : nullable Object */;
+val* var3 /* : nullable Object */;
 val* var_nodearraylist4 /* var nodearraylist4: nullable Object */;
-val* var6 /* : nullable Object */;
+val* var4 /* : nullable Object */;
 val* var_nodearraylist3 /* var nodearraylist3: nullable Object */;
-val* var7 /* : nullable Object */;
+val* var5 /* : nullable Object */;
 val* var_nodearraylist2 /* var nodearraylist2: nullable Object */;
-val* var8 /* : nullable Object */;
+val* var6 /* : nullable Object */;
 val* var_nodearraylist1 /* var nodearraylist1: nullable Object */;
 val* var_pdocnode2 /* var pdocnode2: nullable Object */;
-short int var9 /* : Bool */;
+short int var7 /* : Bool */;
 int cltype;
 int idtype;
 val* var_pvisibilitynode4 /* var pvisibilitynode4: nullable Object */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
-val* var_tkwinitnode5 /* var tkwinitnode5: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-val* var_pmethidnode6 /* var pmethidnode6: nullable Object */;
-short int var16 /* : Bool */;
-int cltype17;
-int idtype18;
+short int var8 /* : Bool */;
+int cltype9;
+int idtype10;
+val* var_tkwnewnode5 /* var tkwnewnode5: nullable Object */;
+short int var11 /* : Bool */;
+int cltype12;
+int idtype13;
 val* var_psignaturenode7 /* var psignaturenode7: nullable Object */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-val* var_pexprnode9 /* var pexprnode9: nullable Object */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : AConcreteInitPropdef */;
-val* var26 /* : null */;
-val* var27 /* : null */;
-val* var_ppropdefnode1 /* var ppropdefnode1: nullable AConcreteInitPropdef */;
-long var28 /* : Int */;
-long var29 /* : Int */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+val* var17 /* : AExternInitPropdef */;
+val* var18 /* : null */;
+val* var19 /* : null */;
+val* var20 /* : null */;
+val* var21 /* : null */;
+val* var22 /* : null */;
+val* var_ppropdefnode1 /* var ppropdefnode1: nullable AExternInitPropdef */;
+long var23 /* : Int */;
+long var24 /* : 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_nodearraylist6 = var1;
 var2 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist7 = var2;
+var_nodearraylist5 = var2;
 var3 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist6 = var3;
+var_nodearraylist4 = var3;
 var4 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist5 = var4;
+var_nodearraylist3 = var4;
 var5 = ((val* (*)(val*))(var_p->class->vft[COLOR_parser__Parser__pop]))(var_p) /* pop on <var_p:Parser>*/;
-var_nodearraylist4 = var5;
+var_nodearraylist2 = 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;
+var_nodearraylist1 = var6;
 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) {
-var9 = 1;
+var7 = 1;
 } else {
 if(cltype >= var_pdocnode2->type->table_size) {
-var9 = 0;
+var7 = 0;
 } else {
-var9 = var_pdocnode2->type->type_table[cltype] == idtype;
+var7 = var_pdocnode2->type->type_table[cltype] == idtype;
 }
 }
-if (!var9) {
+if (!var7) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20125);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20504);
+show_backtrace(1);
 }
 var_pvisibilitynode4 = var_nodearraylist2;
 /* <var_pvisibilitynode4:nullable Object> isa nullable AVisibility */
-cltype11 = type_nullable_parser_nodes__AVisibility.color;
-idtype12 = type_nullable_parser_nodes__AVisibility.id;
+cltype9 = type_nullable_parser_nodes__AVisibility.color;
+idtype10 = type_nullable_parser_nodes__AVisibility.id;
 if(var_pvisibilitynode4 == NULL) {
-var10 = 1;
-} else {
-if(cltype11 >= var_pvisibilitynode4->type->table_size) {
-var10 = 0;
-} else {
-var10 = var_pvisibilitynode4->type->type_table[cltype11] == idtype12;
-}
-}
-if (!var10) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20127);
-exit(1);
-}
-var_tkwinitnode5 = var_nodearraylist3;
-/* <var_tkwinitnode5:nullable Object> isa nullable TKwinit */
-cltype14 = type_nullable_parser_nodes__TKwinit.color;
-idtype15 = type_nullable_parser_nodes__TKwinit.id;
-if(var_tkwinitnode5 == NULL) {
-var13 = 1;
+var8 = 1;
 } else {
-if(cltype14 >= var_tkwinitnode5->type->table_size) {
-var13 = 0;
+if(cltype9 >= var_pvisibilitynode4->type->table_size) {
+var8 = 0;
 } else {
-var13 = var_tkwinitnode5->type->type_table[cltype14] == idtype15;
+var8 = var_pvisibilitynode4->type->type_table[cltype9] == idtype10;
 }
 }
-if (!var13) {
+if (!var8) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20129);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20506);
+show_backtrace(1);
 }
-var_pmethidnode6 = var_nodearraylist4;
-/* <var_pmethidnode6:nullable Object> isa nullable AMethid */
-cltype17 = type_nullable_parser_nodes__AMethid.color;
-idtype18 = type_nullable_parser_nodes__AMethid.id;
-if(var_pmethidnode6 == NULL) {
-var16 = 1;
+var_tkwnewnode5 = var_nodearraylist3;
+/* <var_tkwnewnode5:nullable Object> isa nullable TKwnew */
+cltype12 = type_nullable_parser_nodes__TKwnew.color;
+idtype13 = type_nullable_parser_nodes__TKwnew.id;
+if(var_tkwnewnode5 == NULL) {
+var11 = 1;
 } else {
-if(cltype17 >= var_pmethidnode6->type->table_size) {
-var16 = 0;
+if(cltype12 >= var_tkwnewnode5->type->table_size) {
+var11 = 0;
 } else {
-var16 = var_pmethidnode6->type->type_table[cltype17] == idtype18;
+var11 = var_tkwnewnode5->type->type_table[cltype12] == idtype13;
 }
 }
-if (!var16) {
+if (!var11) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20131);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20508);
+show_backtrace(1);
 }
-var_psignaturenode7 = var_nodearraylist5;
+var_psignaturenode7 = var_nodearraylist4;
 /* <var_psignaturenode7:nullable Object> isa nullable ASignature */
-cltype20 = type_nullable_parser_nodes__ASignature.color;
-idtype21 = type_nullable_parser_nodes__ASignature.id;
+cltype15 = type_nullable_parser_nodes__ASignature.color;
+idtype16 = type_nullable_parser_nodes__ASignature.id;
 if(var_psignaturenode7 == NULL) {
-var19 = 1;
-} else {
-if(cltype20 >= var_psignaturenode7->type->table_size) {
-var19 = 0;
-} else {
-var19 = var_psignaturenode7->type->type_table[cltype20] == idtype21;
-}
-}
-if (!var19) {
-fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20133);
-exit(1);
-}
-var_pexprnode9 = var_nodearraylist7;
-/* <var_pexprnode9:nullable Object> isa nullable AExpr */
-cltype23 = type_nullable_parser_nodes__AExpr.color;
-idtype24 = type_nullable_parser_nodes__AExpr.id;
-if(var_pexprnode9 == NULL) {
-var22 = 1;
+var14 = 1;
 } else {
-if(cltype23 >= var_pexprnode9->type->table_size) {
-var22 = 0;
+if(cltype15 >= var_psignaturenode7->type->table_size) {
+var14 = 0;
 } else {
-var22 = var_pexprnode9->type->type_table[cltype23] == idtype24;
+var14 = var_psignaturenode7->type->type_table[cltype15] == idtype16;
 }
 }
-if (!var22) {
+if (!var14) {
 fprintf(stderr, "Runtime error: %s", "Assert failed");
-fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20135);
-exit(1);
+fprintf(stderr, " (%s:%d)\n", "src/parser/parser.nit", 20510);
+show_backtrace(1);
 }
-var25 = NEW_parser_nodes__AConcreteInitPropdef(&type_parser_nodes__AConcreteInitPropdef);
-var26 = NULL;
-var27 = NULL;
-((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*))(var25->class->vft[COLOR_parser_prod__AConcreteInitPropdef__init_aconcreteinitpropdef]))(var25, var_pdocnode2, var26, var_pvisibilitynode4, var_tkwinitnode5, var_pmethidnode6, var_psignaturenode7, var27, var_pexprnode9) /* init_aconcreteinitpropdef on <var25:AConcreteInitPropdef>*/;
-CHECK_NEW_parser_nodes__AConcreteInitPropdef(var25);
-var_ppropdefnode1 = var25;
+var17 = NEW_parser_nodes__AExternInitPropdef(&type_parser_nodes__AExternInitPropdef);
+var18 = NULL;
+var19 = NULL;
+var20 = NULL;
+var21 = NULL;
+var22 = NULL;
+((void (*)(val*, val*, val*, val*, val*, val*, val*, val*, val*, val*))(var17->class->vft[COLOR_parser_prod__AExternInitPropdef__init_aexterninitpropdef]))(var17, var_pdocnode2, var18, var_pvisibilitynode4, var_tkwnewnode5, var19, var_psignaturenode7, var20, var21, var22) /* init_aexterninitpropdef on <var17:AExternInitPropdef>*/;
+var_ppropdefnode1 = var17;
 var_node_list = var_ppropdefnode1;
-var28 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction455> */
-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>*/;
+var23 = self->attrs[COLOR_parser__ReduceAction___goto].l; /* _goto on <self:ReduceAction465> */
+var24 = ((long (*)(val*, long))(var_p->class->vft[COLOR_parser__Parser__go_to]))(var_p, var23) /* go_to on <var_p:Parser>*/;
+((void (*)(val*, long, val*))(var_p->class->vft[COLOR_parser__Parser__push]))(var_p, var24, var_node_list) /* push on <var_p:Parser>*/;
 RET_LABEL:;
 }
-/* method parser#ReduceAction455#action for (self: Object, Parser) */
-void VIRTUAL_parser__ReduceAction455__action(val* self, val* p0) {
-parser__ReduceAction455__action(self, p0);
+/* method parser#ReduceAction465#action for (self: Object, Parser) */
+void VIRTUAL_parser__ReduceAction465__action(val* self, val* p0) {
+parser__ReduceAction465__action(self, p0);
 RET_LABEL:;
 }