michael@0: 
michael@0: called = 0;
michael@0: function foo() {
michael@0:     this.what();
michael@0:     this.random = 0;
michael@0:     this.what = 1;
michael@0: }
michael@0: foo.prototype.what = function() { called = 1; }
michael@0: new foo();
michael@0: assertEq(called, 1);