michael@0: 
michael@0: function bar() {
michael@0:   foo.arguments.length = 10;
michael@0: }
michael@0: 
michael@0: function foo(x) {
michael@0:   var a = arguments;
michael@0:   var n = 0;
michael@0:   bar();
michael@0:   assertEq(x, 5);
michael@0:   assertEq(a.length, 1);
michael@0: }
michael@0: 
michael@0: foo(5);