2494   Object* maybe_constructor = map()->GetConstructor();  in class_name()  local
2495   if (maybe_constructor->IsJSFunction()) {  in class_name()
2496     JSFunction* constructor = JSFunction::cast(maybe_constructor);  in class_name()
2533     Object* maybe_constructor = receiver->map()->GetConstructor();  in GetConstructorName()  local
2534     if (maybe_constructor->IsJSFunction()) {  in GetConstructorName()
2535       JSFunction* constructor = JSFunction::cast(maybe_constructor);  in GetConstructorName()
2556   Handle<Object> maybe_constructor = JSReceiver::GetDataProperty(&it);  in GetConstructorName()  local
2558   if (maybe_constructor->IsJSFunction()) {  in GetConstructorName()
2559     JSFunction* constructor = JSFunction::cast(*maybe_constructor);  in GetConstructorName()
12630     Object* maybe_constructor = object->map()->GetConstructor();  in OptimizeAsPrototype()  local
12631     if (maybe_constructor->IsJSFunction()) {  in OptimizeAsPrototype()
12632       JSFunction* constructor = JSFunction::cast(maybe_constructor);  in OptimizeAsPrototype()