text: /// Copyright (c) 2012 Ecma International.  All rights reserved. 
  /// Ecma International makes this code available under the terms and conditions set
  /// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
  /// "Use Terms").   Any redistribution of this code must retain the above 
  /// copyright and this notice and otherwise comply with the Use Terms.
  /**
   * @path ch15/15.4/15.4.4/15.4.4.17/15.4.4.17-7-b-11.js
   * @description Array.prototype.some - deleting property of prototype causes prototype index property not to be visited on an Array
   */
  
  
  function testcase() {
          var accessed = false;
          function callbackfn(val, idx, obj) {
              accessed = true;
              return idx === 1;
          }
          var arr = [0, , 2];
  
          Object.defineProperty(arr, "0", {
              get: function () {
                  delete Array.prototype[1];
                  return 0;
              },
              configurable: true
          });
  
          try {
              Array.prototype[1] = 1;
              return !arr.some(callbackfn) && accessed;
          } finally {
              delete Array.prototype[1];
          }
      }
  runTestCase(testcase);
  