226   Handle<Map> new_map =  in PrepareForDataProperty()  local
229   if (old_map.is_identical_to(new_map)) {  in PrepareForDataProperty()
233           new_map->instance_descriptors()->GetDetails(descriptor_number());  in PrepareForDataProperty()
238   JSObject::MigrateToMap(holder, new_map);  in PrepareForDataProperty()
262       Handle<Map> new_map = Map::ReconfigureExistingProperty(  in ReconfigureDataProperty()  local
264       new_map =  in ReconfigureDataProperty()
265           Map::PrepareForDataProperty(new_map, descriptor_number(), value);  in ReconfigureDataProperty()
266       JSObject::MigrateToMap(holder, new_map);  in ReconfigureDataProperty()
394     Handle<Map> new_map = Map::TransitionToAccessorProperty(  in TransitionToAccessorProperty()  local
396     bool simple_transition = new_map->GetBackPointer() == receiver->map();  in TransitionToAccessorProperty()
397     JSObject::MigrateToMap(receiver, new_map);  in TransitionToAccessorProperty()
400       int number = new_map->LastAdded();  in TransitionToAccessorProperty()
402       property_details_ = new_map->GetLastDescriptorDetails();  in TransitionToAccessorProperty()
408     if (!new_map->is_dictionary_map()) return;  in TransitionToAccessorProperty()