michael@0: function f() {
michael@0:   var x = 11;
michael@0: 
michael@0:   function g() {
michael@0:     var y = 12;
michael@0: 
michael@0:     function h() {
michael@0:       for (var i = 0; i < 5; ++i) {
michael@0: 	y = 4;
michael@0: 	x = i * 2;
michael@0:       }
michael@0:     }
michael@0:     h();
michael@0: 
michael@0:     assertEq(y, 4);
michael@0:   }
michael@0:   g();
michael@0: 
michael@0:   assertEq(x, 8);
michael@0: } 
michael@0: 
michael@0: f();