2403   Handle<Map> old_map(object->map());  in MigrateToMap()  local
2410   if (!old_map->InstancesNeedRewriting(  in MigrateToMap()
2420   Handle<DescriptorArray> old_descriptors(old_map->instance_descriptors());  in MigrateToMap()
2466   int instance_size_delta = old_map->instance_size() - new_instance_size;  in MigrateToMap()
2688 Handle<Map> Map::GeneralizeRepresentation(Handle<Map> old_map,  in GeneralizeRepresentation()  argument
2692   Handle<DescriptorArray> old_descriptors(old_map->instance_descriptors());  in GeneralizeRepresentation()
2704     return old_map;  in GeneralizeRepresentation()
2707   int descriptors = old_map->NumberOfOwnDescriptors();  in GeneralizeRepresentation()
2708   Handle<Map> root_map(old_map->FindRootMap());  in GeneralizeRepresentation()
2711   if (!old_map->EquivalentToForTransition(*root_map)) {  in GeneralizeRepresentation()
2712     return CopyGeneralizeAllRepresentations(old_map, modify_index, store_mode,  in GeneralizeRepresentation()
2719     return CopyGeneralizeAllRepresentations(old_map, modify_index, store_mode,  in GeneralizeRepresentation()
2726     return CopyGeneralizeAllRepresentations(old_map, modify_index, store_mode,  in GeneralizeRepresentation()
2773     old_map->PrintGeneralization(  in GeneralizeRepresentation()
4005     Handle<Map> old_map(object->map());  in ConvertAndSetLocalProperty()  local
4006     Handle<Map> new_map = Map::CopyGeneralizeAllRepresentations(old_map,  in ConvertAndSetLocalProperty()
4741   Map* old_map = array->map();  in NormalizeElements()  local
4743       (old_map == old_map->GetHeap()->non_strict_arguments_elements_map());  in NormalizeElements()
4782   old_map->GetHeap()->isolate()->counters()->elements_to_dictionary()->  in NormalizeElements()
5592   Handle<Map> old_map(object->map());  in Freeze()  local
5593   old_map->LookupTransition(*object, isolate->heap()->frozen_symbol(), &result);  in Freeze()
5600   } else if (object->HasFastProperties() && old_map->CanHaveMoreTransitions()) {  in Freeze()
5602     int num_descriptors = old_map->NumberOfOwnDescriptors();  in Freeze()
5605             handle(old_map->instance_descriptors()), num_descriptors, FROZEN);  in Freeze()
5607         old_map, new_descriptors, INSERT_TRANSITION,  in Freeze()