According to Rick Waldron (TC39 member) on twitter[1][2], this has just been elevated to a harmony proposal[3][4].<p>[1] <a href="https://twitter.com/rwaldron/status/380725837038759936" rel="nofollow">https://twitter.com/rwaldron/status/380725837038759936</a><p>[2] <a href="https://twitter.com/rwaldron/status/380742382594953216" rel="nofollow">https://twitter.com/rwaldron/status/380742382594953216</a><p>[3] <a href="http://wiki.ecmascript.org/doku.php?id=harmony:proposals" rel="nofollow">http://wiki.ecmascript.org/doku.php?id=harmony:proposals</a><p>[4] <a href="https://mail.mozilla.org/pipermail/es-discuss/2008-August/006837.html" rel="nofollow">https://mail.mozilla.org/pipermail/es-discuss/2008-August/00...</a>