chrome stack trace on error.js

(function($G)
{
  var _wrap = function(Class)
  {
    var _toString = Class.prototype.toString; 
    
    Class.prototype.toString = function()
    {
      console.error('stack trace\n' + (this.stack || '/* no stack trace */'));

      return _toString.call(this);
    };
  };

  _wrap($G.Error);
})(window);