|  | // 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. | 
|  |  | 
|  | import 'package:expect/expect.dart'; | 
|  |  | 
|  | class Class1 { | 
|  | method1() { | 
|  | num local(num n) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  |  | 
|  | method2() { | 
|  | num local(int n) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  |  | 
|  | method3() { | 
|  | Object local(num n) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  | } | 
|  |  | 
|  | class Class2<T> { | 
|  | method4() { | 
|  | num local(T n) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  | } | 
|  |  | 
|  | class Class3<T> { | 
|  | method5() { | 
|  | T local(num n) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  | } | 
|  |  | 
|  | class Class4<T> { | 
|  | method6() { | 
|  | num local(num n, T t) => null as dynamic; | 
|  | return local; | 
|  | } | 
|  | } | 
|  |  | 
|  | @pragma('dart2js:noInline') | 
|  | test(o) => o is num Function(num); | 
|  |  | 
|  | main() { | 
|  | Expect.isTrue(test(new Class1().method1())); | 
|  | Expect.isFalse(test(new Class1().method2())); | 
|  | Expect.isFalse(test(new Class1().method3())); | 
|  | Expect.isTrue(test(new Class2<num>().method4())); | 
|  | Expect.isTrue(test(new Class3<num>().method5())); | 
|  | Expect.isFalse(test(new Class4<num>().method6())); | 
|  | } |