diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug685321-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug685321-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+function f() {
+    function g() {
+        for (var i = 0; i < 3; i++)
+        x = i;
+    };
+    var [x] = 0;
+    g();
+    assertEq(x, 2);
+    print(x);
+}
+f();