|  | // Copyright (c) 2011, 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"; | 
|  |  | 
|  | int inscrutable(int x) => x == 0 ? 0 : x | inscrutable(x & (x - 1)); | 
|  |  | 
|  | foo(x) { | 
|  | if (inscrutable(1999) == 1999) return x; | 
|  | return 499; | 
|  | } | 
|  |  | 
|  | main() { | 
|  | Expect.equals(3, "xx".length); // BOM character between the xs. | 
|  | Expect.equals(3, foo("xx").length); // BOM character between the xs. | 
|  | } |