michael@0: (function () {
michael@0:   var a;
michael@0:   eval("for(w in ((function(x,y){b:0})())) ;");
michael@0: })();
michael@0: 
michael@0: this.__defineSetter__("l", function() { gc() });
michael@0: this.watch("l", function(x) { yield {} });
michael@0: l = true;