Change DefineOrRedefineDataProperty to use local lookup.

src/runtime.cc

 // Copyright 2011 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 3878 matching lines @@
     PropertyDetails details = PropertyDetails(attr, NORMAL);
     Handle<NumberDictionary> extended_dictionary =
         NumberDictionarySet(dictionary, index, obj_value, details);
     if (*extended_dictionary != *dictionary) {
       js_object->set_elements(*extended_dictionary);
     }
     return *obj_value;
   }
 
   LookupResult result;
-  js_object->LookupRealNamedProperty(*name, &result);
+  js_object->LocalLookupRealNamedProperty(*name, &result);
 
   // To be compatible with safari we do not change the value on API objects
   // in defineProperty. Firefox disagrees here, and actually changes the value.
   if (result.IsProperty() &&
       (result.type() == CALLBACKS) &&
       result.GetCallbackObject()->IsAccessorInfo()) {
     return isolate->heap()->undefined_value();
   }
 
   // Take special care when attributes are different and there is already
@@ skipping 8465 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     isolate->counters()->gc_last_resort_from_js()->Increment();
     isolate->heap()->CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal