Clear EnumIndices as well on CNLT.

src/handles.cc

 // Copyright 2012 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 717 matching lines @@
       // enum length of the map by counting the number of own descriptors that
       // are not DONT_ENUM.
       if (own_property_count == Map::kInvalidEnumCache) {
         own_property_count = object->map()->NumberOfDescribedProperties(
             OWN_DESCRIPTORS, DONT_ENUM);
 
         if (cache_result) object->map()->SetEnumLength(own_property_count);
       }
 
       DescriptorArray* desc = object->map()->instance_descriptors();
-      Handle<FixedArray> keys(FixedArray::cast(desc->GetEnumCache()), isolate);
+      Handle<FixedArray> keys(desc->GetEnumCache(), isolate);
 
       // In case the number of properties required in the enum are actually
       // present, we can reuse the enum cache. Otherwise, this means that the
       // enum cache was generated for a previous (smaller) version of the
       // Descriptor Array. In that case we regenerate the enum cache.
       if (own_property_count <= keys->length()) {
         isolate->counters()->enum_cache_hits()->Increment();
         return ReduceFixedArrayTo(keys, own_property_count);
       }
     }
@@ skipping 309 matching lines @@
   data->next = prev_next_;
   data->limit = prev_limit_;
 #ifdef DEBUG
   handles_detached_ = true;
 #endif
   return deferred;
 }
 
 
 } }  // namespace v8::internal