diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/collections/Set-iterator-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/collections/Set-iterator-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+// Nested for-of loops can iterate over a Set.
+
+var map = Set(['a', 'b']);
+var log = '';
+for (let x of map) {
+    log += x + ':'
+    for (let y of map)
+        log += y;
+    log += ';'
+};
+assertEq(log, 'a:ab;b:ab;');