// Copyright (c) 2021, 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 T Function(T) extendsNumReturnArg = (S s) => s; functionInvocations() { extendsNumReturnArg/**/(null); extendsNumReturnArg/**/(""); } main() {}