| // Copyright (c) 2018, 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. | |
| // dart2jsOptions=--strong | |
| class A { | |
| void m2<T>(void Function(T) f, [a]) {} | |
| } | |
| main() => new A().m2<String>(null); |