Sort WebCore.exp.in after r171252
https://bugs.webkit.org/show_bug.cgi?id=135239

Patch by Tibor Meszaros <tmeszaros.u-szeged@partner.samsung.com> on 2014-07-24
Reviewed by Csaba Osztrogonác.

* WebCore.exp.in:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@171512 268f45cc-cd09-0410-ab3c-d52691b4dbfc