diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/for-of/break-3.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/for-of/break-3.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,12 @@
+// A labeled break statement can leave multiple for-loops
+
+var log = '';
+for (var i = 0; i < 3; i++) {
+    a: for (var x of [1, 2, 3]) {
+        for (var y of ['.', ':']) {
+            log += x + y;
+            break a;
+        }
+    }
+}
+assertEq(log, "1.1.1.");