Use Z_EXPECTED_LONG to initialize FAST_ZPP parsing loop

Author: sgolemon

Zend/zend_API.h

@@ -709,7 +709,7 @@ ZEND_API ZEND_COLD void ZEND_FASTCALL zend_wrong_callback_error(int severity, in
 		int _num_args = EX_NUM_ARGS(); \
 		int _i; \
 		zval *_real_arg, *_arg = NULL; \
-		zend_expected_type _expected_type = IS_UNDEF; \
+		zend_expected_type _expected_type = Z_EXPECTED_LONG; \
 		char *_error = NULL; \
 		zend_bool _dummy; \
 		zend_bool _optional = 0; \