michael@0: // for-of can iterate arguments objects for other active frames.
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: Object.prototype[std_iterator] = Array.prototype[std_iterator];
michael@0: 
michael@0: var s;
michael@0: function g(obj) {
michael@0:     for (var v of obj)
michael@0:         s += v;
michael@0: }
michael@0: 
michael@0: function f() {
michael@0:     g(arguments);
michael@0: }
michael@0: 
michael@0: s = '';
michael@0: f(1, 2, 3);
michael@0: assertEq(s, '123');