michael@0: function f1(b) {
michael@0:     var w = 3;
michael@0:     if (b)
michael@0:         function w() {}
michael@0:     return w;
michael@0: }
michael@0: assertEq(typeof f1(true), "function");
michael@0: assertEq(f1(false), 3);
michael@0: 
michael@0: function f2(b, w) {
michael@0:     if (b)
michael@0:         function w() {}
michael@0:     return w;
michael@0: }
michael@0: assertEq(typeof f2(true, 3), "function");
michael@0: assertEq(f2(false, 3), 3);
michael@0: 
michael@0: function f3(b) {
michael@0:     let (w = 3) {
michael@0:         if (b)
michael@0:             function w() {}
michael@0:         return w;
michael@0:     }
michael@0: }
michael@0: assertEq(f3(true, 3), 3);
michael@0: assertEq(f3(false), 3);