An uninitialized DateTime is UNEXPECTED (#13492)

ext/date/php_date.c

@@ -326,7 +326,7 @@ static void date_throw_uninitialized_error(zend_class_entry *ce)
 }
 
 #define DATE_CHECK_INITIALIZED(member, ce) \
-	if (!(member)) { \
+	if (UNEXPECTED(!member)) { \
 		date_throw_uninitialized_error(ce); \
 		RETURN_THROWS(); \
 	}