pkg/front_end/testcases/nnbd/issue42540.dart

// Copyright (c) 2020, 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.

dynamic getNull() => null;

Future<Object> fn() async {
  Object o = await getNull();
  return await getNull();
}

main() {}