Mark gh9259_003.phpt as xfail with ASAN

The tests reports memory leaks.

Author: iluuu1994

ext/opcache/tests/gh9259_003.phpt

@@ -2,6 +2,10 @@
 Bug GH-9259 003 (Setting opcache.interned_strings_buffer to a very high value leads to corruption of shm)
 --EXTENSIONS--
 opcache
+--SKIPIF--
+<?php
+if (getenv('SKIP_ASAN')) die('xfail Leaks memory with ASAN');
+?>
 --INI--
 opcache.interned_strings_buffer=500
 opcache.enable_cli=1