michael@0: actual = '';
michael@0: expected = 'undefined,';
michael@0: 
michael@0: function loop(f) {
michael@0:   var p;
michael@0:   for (var i = 0; i < 10; ++i) {
michael@0:     p = f();
michael@0:   }
michael@0:   return p;
michael@0: }
michael@0: 
michael@0: function make(k, j) {
michael@0:   var g = function() { return k; }
michael@0:   k = j;
michael@0:   return g;
michael@0: }
michael@0: 
michael@0: var f = make();
michael@0: appendToActual(loop(f));
michael@0: 
michael@0: 
michael@0: assertEq(actual, expected)