|  | // 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. | 
|  |  | 
|  | main() async { | 
|  | // With the `is dynamic Function(Object,StackTrace)` test in the async | 
|  | // implementation the closure, with type `dynamic Function(dynamic, dynamic)`, | 
|  | // needs its signature. | 
|  | // | 
|  | // This happens because the closure is thought as possibly going to the | 
|  | // async.errorHandler callback. | 
|  |  | 
|  | /*needsSignature*/ | 
|  | local(object, stacktrace) => null; | 
|  |  | 
|  | return local; | 
|  | } |