pkg/front_end/testcases/nnbd_mixed/issue41499_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=2.6
typedef void LegacyFoo();

test(LegacyFoo f) {}