| // 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. | |
| method2() { | |
| return (String s) => s; | |
| } | |
| class Class2 {} | |
| method4() { | |
| return (Class2? c1, Class2? c2) => c1; | |
| } | |
| test4(o) => o is Class2? Function(Class2?, Class2?); | |
| method6(Class2? c, int i, String s) {} | |
| test6(o) => o is Function(Class2?, int, String); |