pkg/front_end/testcases/general/issue48242.dart

// Copyright (c) 2022, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

mixin Base {
  Object? methodWithDefaultImpl() {}
}

mixin TestFailure<A> on Base {
  @override
  methodWithDefaultImpl({A? nameParam});
}

void main() {}