diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/collections/Set-clear-iterators-2.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/collections/Set-clear-iterators-2.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,11 @@
+// A Set iterator continues to visit entries added after a clear().
+
+load(libdir + "iteration.js");
+
+var s = Set(["a"]);
+var it = s[std_iterator]();
+assertIteratorNext(it, "a");
+s.clear();
+s.add("b");
+assertIteratorNext(it, "b");
+assertIteratorDone(it, undefined);