test fix attempt

Author: devnexen

ext/standard/tests/gh20840.phpt …ard/tests/general_functions/gh20840.phptext/standard/tests/gh20840.phpt renamed to ext/standard/tests/general_functions/gh20840.phpt ext/standard/tests/gh20840.phpt renamed to ext/standard/tests/general_functions/gh20840.phpt

@@ -2,8 +2,17 @@
 GH-20840 (var_dump() crash with nested objects)
 --CREDITS--
 bendrissou
+--SKIPIF--
+<?php
+if (ini_get('zend.max_allowed_stack_size') === false) {
+    die('skip No stack limit support');
+}
+if (getenv('SKIP_ASAN')) {
+    die('skip ASAN needs different stack limit setting due to more stack space usage');
+}
+?>
 --INI--
-memory_limit=-1
+zend.max_allowed_stack_size=512K
 --FILE--
 <?php
 class Node {