michael@0: // Arguments with default parameters can shadow const locals.
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: function f() {
michael@0:     const x = 1;
michael@0:     return (x = 0) => x;
michael@0: }
michael@0: 
michael@0: var g = f();
michael@0: assertEq(g(), 0);