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      1 // Copyright 2016 the V8 project authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 (function(global, utils) {
      6 "use strict";
      7 
      8 %CheckIsBootstrapping();
      9 
     10 var GlobalString = global.String;
     11 var OverrideFunction = utils.OverrideFunction;
     12 var ToLowerCaseI18N = utils.ImportNow("ToLowerCaseI18N");
     13 var ToUpperCaseI18N = utils.ImportNow("ToUpperCaseI18N");
     14 var ToLocaleLowerCaseI18N = utils.ImportNow("ToLocaleLowerCaseI18N");
     15 var ToLocaleUpperCaseI18N = utils.ImportNow("ToLocaleUpperCaseI18N");
     16 
     17 OverrideFunction(GlobalString.prototype, 'toLowerCase', ToLowerCaseI18N, true);
     18 OverrideFunction(GlobalString.prototype, 'toUpperCase', ToUpperCaseI18N, true);
     19 OverrideFunction(GlobalString.prototype, 'toLocaleLowerCase',
     20                  ToLocaleLowerCaseI18N, true);
     21 OverrideFunction(GlobalString.prototype, 'toLocaleUpperCase',
     22                  ToLocaleUpperCaseI18N, true);
     23 
     24 })
     25