pkg/front_end/testcases/nnbd/issue39822.dart

// Copyright (c) 2019, 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.

foo(Null x) {
  bar(x!);
}

bar(int y) {}

main() {}