Update test to consume stack faster, so that overflow happens before memory exhaustion

Author: arnaud-lb

Zend/tests/stack_limit/stack_limit_011.phpt

@@ -13,18 +13,17 @@ zend.max_allowed_stack_size=512K
 
 var_dump(zend_test_zend_call_stack_get());
 
-class Test1 {
-    public function __destruct() {
-        new Test1;
-    }
+function replace2() {
+    return preg_replace_callback('#.#', function () {
+        replace2();
+    }, 'x');
 }
-
 function replace() {
     return preg_replace_callback('#.#', function () {
         try {
             replace();
         } finally {
-            new Test1();
+            replace2();
         }
     }, 'x');
 }