michael@0: Object.prototype.blah = 42;
michael@0: 
michael@0: function g(a,b,c) {
michael@0:     assertEq(a, 1);
michael@0:     assertEq(b, 2);
michael@0:     assertEq(c, 3);
michael@0:     return 43;
michael@0: }
michael@0: 
michael@0: function f() {
michael@0:     var a = arguments;
michael@0:     var b = a;
michael@0:     var s = "blah";
michael@0:     assertEq(a[s], 42);
michael@0:     assertEq(b[s], 42);
michael@0:     assertEq(a[s], 42);
michael@0:     assertEq(b.length, 3);
michael@0:     assertEq(a.length, 3);
michael@0:     assertEq(g.apply(null, b), 43);
michael@0: }
michael@0: 
michael@0: for (var i = 0; i < 10; ++i)
michael@0:     f(1,2,3);