diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/bug535930.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/bug535930.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+(function () {
+    p = function () {
+        Set()
+    };
+    var Set = function () {};
+    for (var x = 0; x < 5; x++) {
+        Set = function (z) {
+            return function () {
+                [z]
+            }
+        } (x)
+    }
+})()
+
+/*
+ * bug 535930, mistakenly generated code to GetUpvar and crashed inside the call.
+ * so don't crash.
+ */
+