| // Copyright (c) 2015, 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 | 
 |  | 
 | import 'dart:math' as Math; | 
 | import 'package:expect/expect.dart'; | 
 | import 'regress21998_lib1.dart' as lib1; | 
 | import 'regress21998_lib2.dart'; | 
 | import 'regress21998_lib3.dart'; | 
 |  | 
 | main() { | 
 |   Expect.equals(4, new C().m()); | 
 | } | 
 |  | 
 | class C { | 
 |   max(a) => a; | 
 |  | 
 |   m() { | 
 |     return max(Math.max<num>( | 
 |         lib3_max(0, lib2_max(1, 2)), lib1.max('a', 'b', 'cd').length)); | 
 |   } | 
 | } |