michael@0: // 'arguments' works in nested genexprs.
michael@0: 
michael@0: function f() {
michael@0:     return ((((((arguments for (u of [0]))
michael@0:                 for (v of [1]))
michael@0:                for (w of [2]))
michael@0:               for (x of [3]))
michael@0:              for (y of [4]))
michael@0:             for (z of [5]));
michael@0: }
michael@0: var args = f("ponies").next().next().next().next().next().next();
michael@0: assertEq(args[0], "ponies");