| Index: src/runtime/runtime-object.cc
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| diff --git a/src/runtime/runtime-object.cc b/src/runtime/runtime-object.cc
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| index b2a736d7a5bb41e07532366ac815da3693bcbace..c83b247009dc892984ed7c166f79ef20207cc1c1 100644
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| --- a/src/runtime/runtime-object.cc
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| +++ b/src/runtime/runtime-object.cc
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| @@ -1400,9 +1400,8 @@ RUNTIME_FUNCTION(Runtime_LoadMutableDouble) {
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|      RUNTIME_ASSERT(field_index.outobject_array_index() <
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|                     object->properties()->length());
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|    }
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| -  Handle<Object> raw_value(object->RawFastPropertyAt(field_index), isolate);
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| -  RUNTIME_ASSERT(raw_value->IsMutableHeapNumber());
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| -  return *Object::WrapForRead(isolate, raw_value, Representation::Double());
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| +  return *JSObject::FastPropertyAt(object, Representation::Double(),
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| +                                   field_index);
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|  }
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|  
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|  
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| 
 |