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/// 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 ch15/15.4/15.4.4/15.4.4.15/15.4.4.15-2-3.js
* @description Array.prototype.lastIndexOf - 'length' is own data property that overrides an inherited data property on an Array-like object
*/
function testcase() {
var proto = {length: 0};
var Con = function () {};
Con.prototype = proto;
var child = new Con();
child.length = 2;
child[1] = child;
return Array.prototype.lastIndexOf.call(child, child) === 1;
}
runTestCase(testcase);
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