[php-src] Issue #10066: var_export on anonymous classes

Issue: https://github.com/php/php-src/issues/10066 Author: KapitanOczywisty ### Description I couldn't find that reported, so I'll open a new issue. The following code: ```php <?php var_export(new class{}); ``` Resulted in this output: https://3v4l.org/CQ6qK ``` \class@anonymous/in/CQ6qK:3$0::__set_state(array( )) ``` But I expected this output instead: ``` NULL ``` or ``` new class {} ``` ### PHP Version PHP 8.2 and older ### Operating System _No response_