if (_expected.prototype === [].prototype) 
if (Object.prototype.toString.call(_expected) === Object.prototype.toString.call([])) 
function isResultCorrect(_actual, _expected){    if (_actual === _expected)        return true;    if (typeof(_expected) == "number" && isNaN(_expected))        return typeof(_actual) == "number" && isNaN(_actual);    if (_expected.prototype === [].prototype)        return areArraysEqual(_actual, _expected);    return false;}
1725	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1725/bb0b55796f1b5e3ca2779a107ff6a02d07d804f8/js-test-pre.js/clean/LayoutTests/fast/js/resources/js-test-pre.js