[ticket/15008] Disable emoji when smilies are disabled

Will effectively disable emoji shortname and won't replace emoji
with images but will not prevent a browser or OS from displaying
emoji as images.

PHPBB3-15008

tests/text_processing/tickets_data/PHPBB3-15008.before.php

@@ -0,0 +1,18 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+function before_assert_phpbb3_15008($vars)
+{
+	extract($vars);
+	$parser->disable_smilies();
+}