diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/testBug763950.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/testBug763950.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+(function() {
+    var x;
+    for (let j = 0; j < 1; j = j + 1) 
+        x = function() { return j; };
+    assertEq(x(), 1);
+})();