Mark test as expected to fail due to #5356

Author: sebastianbergmann

tests/end-to-end/regression/1348.phpt

@@ -1,5 +1,7 @@
 --TEST--
 https://github.com/sebastianbergmann/phpunit/issues/1348
+--XFAIL--
+https://github.com/sebastianbergmann/phpunit/issues/5356
 --SKIPIF--
 <?php declare(strict_types=1);
 if (defined('HHVM_VERSION') || defined('PHPDBG_VERSION')) {