diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma_5/Object/15.2.3.4-04.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma_5/Object/15.2.3.4-04.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,31 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor:
+ *   Jeff Walden <jwalden+code@mit.edu>
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 518663;
+var summary = 'Object.getOwnPropertyNames: regular expression objects';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+var actual = Object.getOwnPropertyNames(/a/);
+var expected = ["lastIndex", "source", "global", "ignoreCase", "multiline"];
+
+for (var i = 0; i < expected.length; i++)
+{
+  reportCompare(actual.indexOf(expected[i]) >= 0, true,
+                expected[i] + " should be a property name on a RegExp");
+}
+
+/******************************************************************************/
+
+reportCompare(true, true);
+
+print("All tests passed!");