text: // Copyright (c) 2012 Ecma International.  All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  es5id: 15.2.3.4-4-b-6
  description: >
      Object.getOwnPropertyNames - elements of the returned array are
      configurable
  ---*/
  
          var obj = { "a": "a" };
  
          var result = Object.getOwnPropertyNames(obj);
  
          var beforeDeleted = (result.hasOwnProperty("0"));
          delete result[0];
          var afterDeleted = (result.hasOwnProperty("0"));
  
  assert(beforeDeleted, 'beforeDeleted !== true');
  assert.sameValue(afterDeleted, false, 'afterDeleted');
  