Chrome workaround for Maximum call stack size exceeded

Removed the "debugger" statement workaround, as it impacts working
with Chrome in developer mode.

A simple statement appears to do the job.

Remove do/while statement and get 'Maximum call stack size exceeded'
       do { return new $int(value, radix); } while (0);
Fix for IE 11 (Focus)

IE presents itself as mozilla, so it trips on the bug.