diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/collections/Set-iterator-gc-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/collections/Set-iterator-gc-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+// A Set iterator keeps the data alive.
+
+load(libdir + "referencesVia.js");
+load(libdir + "iteration.js");
+
+var key = {};
+var set = Set([key]);
+var iter = set[std_iterator]();
+referencesVia(iter, "**UNKNOWN SLOT 0**", set);
+referencesVia(set, "key", key);