| // Copyright (c) 2017, 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"; | 
 |  | 
 | void main() { | 
 |   // Test object startIndex | 
 |   "hello".replaceFirst("h", "X", new Object()); /*@compile-error=unspecified*/ | 
 |  | 
 |   // Test object startIndex | 
 |   "hello".replaceFirstMapped( | 
 |       "h", (_) => "X", new Object()); /*@compile-error=unspecified*/ | 
 |  | 
 |   "foo-bar".replaceFirstMapped("bar", (v) { | 
 |     return 42; | 
 |   }); /*@compile-error=unspecified*/ | 
 |  | 
 |   "hello".replaceRange(0, 0, 42); /*@compile-error=unspecified*/ | 
 |   "hello".replaceRange(0, 0, ["x"]); /*@compile-error=unspecified*/ | 
 | } | 
 |  | 
 | // Fails to return a String on toString, throws if converted by "$naughty". | 
 | class Naughty { | 
 |   toString() => this; /*@compile-error=unspecified*/ | 
 | } |