// 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.

/// @assertion If an unmigrated library re-exports a migrated library, the
/// re-exported symbols retain their migrated status (that is, downstream
/// migrated libraries will see their migrated types).
/// @description Check that type alias for [Never] type exported from opted-
/// in library to legacy library and then back to the opted in code cannot be
/// assigned to [null].
/// @author iarkh@unipro.ru

// Requirements=nnbd-weak

import 'exports_A01_opted_out_aliases_lib.dart';

main() {
  NeverAlias n = null;
//               ^^^^
// [analyzer] unspecified
// [cfe] unspecified
}