pkg/front_end/testcases/nonfunction_type_aliases_no_nnbd/issue_43084/issue_43084_lib.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.
// @dart=2.9
class Foo<X> {
}

typedef Bar<X> = Foo<X>;