// 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. Future returnFutureOfVoid() async {} void returnVoid() {} void returnVoidAsync() async {} test() async { await returnVoid(); // error await returnVoidAsync(); // error } main() async { await returnFutureOfVoid(); // ok }