[php-src] Issue #9500: PHP8.2 Disjunctive Normal Form Types - readonly property followed by `(`

Issue: https://github.com/php/php-src/issues/9500 Author: SpacePossum ### Description The following code: ```php <?php class Dnf { private A|(B&C) $a; // valid private (B&C)|A $b; // valid private readonly A|(B&C) $c; // valid private readonly (B&C)|A $d; // invalid? } ``` Resulted in this output: ``` Parse error: syntax error, unexpected token "(", expecting variable in app/test.php on line 7 ``` But I expected this output instead: ``` ``` ### PHP Version php:8.2.0RC1-zts-alpine3.16 ### Operating System _No response_