Merge pull request #2144 from donc/ice10283ctfestructlit

10283: ICE in CTFE

src/cast.c

@@ -1065,7 +1065,7 @@ Expression *Expression::castTo(Scope *sc, Type *t)
         VarDeclaration *v = ((VarExp *)this)->var->isVarDeclaration();
         if (v && v->storage_class & STCmanifest)
         {
-            Expression *e = optimize(WANTvalue | WANTinterpret);
+            Expression *e = ctfeInterpret();
             return e->castTo(sc, t);
         }
     }

src/expression.c

@@ -4588,6 +4588,8 @@ Expression *StructLiteralExp::semantic(Scope *sc)
             }
             offset = v->offset + v->type->size();
         }
+        if (e && e->op == TOKerror)
+            return e;
         elements->push(e);
     }
 

test/fail_compilation/ice10283.d

@@ -0,0 +1,10 @@
+// 10283
+
+S10283 blah(S10283 xxx) { return xxx; }
+S10283 repy = blah(S10283());
+
+struct S10283
+{
+    string source = 7;
+}
+