Fix test

Author: arnaud-lb

Zend/tests/first_class_callable/constexpr/gh22782.phpt

@@ -7,6 +7,10 @@ opcache.enable=1
 opcache.enable_cli=1
 opcache.optimization_level=-1
 opcache.preload={PWD}/gh22782.inc
+--SKIPIF--
+<?php
+if (PHP_OS_FAMILY == 'Windows') die('skip Preloading is not supported on Windows');
+?>
 --FILE--
 <?php