Return failure when allocating maps fails.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index dd6cb9f36ad077063b6059a12b8995416d5d1516..5365e7821a8cda024551468ff472a0d60333e429 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -2588,6 +2588,7 @@ MaybeObject* Map::GeneralizeRepresentation(int modify_index,
       // during GC. Its descriptor array is too large, but it will be

[Michael Starzinger, 2013/05/10 17:42:22]

OMG, that is an epic hack you have going on here ...

       // overwritten during retry anyway.
       Handle<Map>(new_map);
+      return maybe_map;
     }
   }