The Tor Browser / file revision

 function parseIntHelper(n) {

     var a;

     for (var i = 0; i < 5; i++)

       a = parseInt(n);

     return a;

 }

 function doParseIntTests() {

     var inputs = [0, -0, .1, -.1, .7, -.7, 1.3, -1.3];

     var outputs = new Array(8);

     //avoid jit, unrolled

     outputs[0] = outputs[1] = outputs[2] = outputs[4] = 0;

     outputs[3] = outputs[5] = -0;

     outputs[6] = 1;

     outputs[7] = -1;

     for (var i = 0; i < 8; i++) {

         var testfn = new Function('return parseIntHelper(' + uneval(inputs[i]) + ');');

         assertEq(testfn(), outputs[i]);

     }

 }

 doParseIntTests();

 assertEq(parseInt("08"), 8);

 assertEq(parseInt("09"), 9);