Change test expectation after VM revert

I'm really not sure this is the expected output

Author: Girgias

Zend/tests/in-de-crement/oss-fuzz-61469_binop_dynamic_property_unset_error_handler.phpt

@@ -13,4 +13,4 @@ $c->a += 5;
 var_dump($c->a);
 ?>
 --EXPECT--
-NULL
+int(5)

Zend/tests/in-de-crement/oss-fuzz-61469_preinc_dynamic_property_unset_error_handler.phpt

@@ -13,4 +13,4 @@ set_error_handler([$c,'errorHandle']);
 var_dump($c->a);
 ?>
 --EXPECT--
-NULL
+int(1)