diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/for-of/break-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/for-of/break-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+// A break statement leaves only a single for-of loop.
+
+var log = '';
+for (var x of [1, 2, 3]) {
+    for (var y of ['.', ':']) {
+        log += x + y;
+        break;
+    }
+}
+assertEq(log, "1.2.3.");