Don't let JSON parsed objects hit inherited setters.

src/heap-inl.h

 // Copyright 2006-2010 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 503 matching lines @@
 #define CALL_HEAP_FUNCTION(FUNCTION_CALL, TYPE)                \
   CALL_AND_RETRY(FUNCTION_CALL,                                \
                  return Handle<TYPE>(TYPE::cast(__object__)),  \
                  return Handle<TYPE>())
 
 
 #define CALL_HEAP_FUNCTION_VOID(FUNCTION_CALL) \
   CALL_AND_RETRY(FUNCTION_CALL, return, return)
 
 
+#define CALL_HEAP_FUNCTION_INLINE(FUNCTION_CALL) \
+  CALL_AND_RETRY(FUNCTION_CALL, break, break)
+
+
 #ifdef DEBUG
 
 inline bool Heap::allow_allocation(bool new_state) {
   bool old = allocation_allowed_;
   allocation_allowed_ = new_state;
   return old;
 }
 
 #endif
 
@@ skipping 44 matching lines @@
 
 
 void ExternalStringTable::ShrinkNewStrings(int position) {
   new_space_strings_.Rewind(position);
   Verify();
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_