diff -r 000000000000 -r 6474c204b198 js/src/jit-test/tests/basic/delete-indexed-names.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/jit-test/tests/basic/delete-indexed-names.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,7 @@
+var a = ['p', 'q', 'r', 's', 't'];
+var o = {p:1, q:2, r:3, s:4, t:5};
+for (var i in o)
+    delete o[i];
+for each (var i in a)
+    assertEq(o.hasOwnProperty(i), false);
+