pkg/front_end/testcases/super_parameters/issue48708.dart.textual_outline.expect

class A {}

class Mixin {}

abstract class B<D> {
  B({
    required this.field,
  });
  final D field;
}

class C extends B<A> with Mixin {
  C({
    required super.field,
  });
}

main() {}