michael@0: 
michael@0: function foo(a, b) {
michael@0:     blah(function (x) { a = x; }, b);
michael@0:     return arguments[0];
michael@0: }
michael@0: 
michael@0: function blah(f, b) {
michael@0:     f(b);
michael@0: }
michael@0: 
michael@0: function main() {
michael@0:     for (var i = 0; i < 1500; i++) {
michael@0:         var x = foo(i, i*2);
michael@0:         assertEq(x, i*2);
michael@0:     }
michael@0: }
michael@0: 
michael@0: main();