pkg/front_end/testcases/nnbd/nullable_setter.dart.textual_outline.expect

class C {
  String m = "";
  void set setter(String v) {}
  void operator []=(int index, String value) {}
}

extension on C? {
  void set setter(String v) {}
  void operator []=(int index, String value) {}
}

main() {}
expect(expected, actual) {}