fix bad access check check

src/objects.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 5896 matching lines @@
 // - No prototype has enumerable properties/elements.
 bool JSReceiver::IsSimpleEnum() {
   Heap* heap = GetHeap();
   for (Object* o = this;
        o != heap->null_value();
        o = JSObject::cast(o)->GetPrototype()) {
     if (!o->IsJSObject()) return false;
     JSObject* curr = JSObject::cast(o);
     int enum_length = curr->map()->EnumLength();
     if (enum_length == kInvalidEnumCacheSentinel) return false;
+    if (curr->IsAccessCheckNeeded()) return false;
     ASSERT(!curr->HasNamedInterceptor());
     ASSERT(!curr->HasIndexedInterceptor());
-    ASSERT(!curr->IsAccessCheckNeeded());
     if (curr->NumberOfEnumElements() > 0) return false;
     if (curr != this && enum_length != 0) return false;
   }
   return true;
 }
 
 
 static bool FilterKey(Object* key, PropertyAttributes filter) {
   if ((filter & SYMBOLIC) && key->IsSymbol()) {
     return true;
@@ skipping 10568 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal