michael@0: actual = '';
michael@0: expected = '0,1,2,3,4,';
michael@0: 
michael@0: function g(a) {
michael@0:   a();
michael@0: }
michael@0: 
michael@0: function f(y) {
michael@0:   var q;
michael@0:   q = function() { appendToActual(y); };
michael@0:   g(q);
michael@0: }
michael@0: 
michael@0: for (var i = 0; i < 5; ++i) {
michael@0:   f(i);
michael@0:  }
michael@0: 
michael@0: 
michael@0: assertEq(actual, expected)