[php-src] Issue #13097: Anonymous class reference in trigger_error

Issue: https://github.com/php/php-src/issues/13097 Author: henzeb ### Description The following code is a bug since the introduction of anonymous classes in PHP 7.0: https://3v4l.org/0OTZ9#v7.0.0 // for reference https://3v4l.org/0OTZ9#v8.3.1 ```php <?php $anonymous = new class(){}; echo get_class($anonymous).': now you see me...'; trigger_error( get_class($anonymous).' ...now you don\'t!', E_USER_ERROR ); ``` Resulted in this output: ``` class@anonymous/in/0OTZ9:3$0: now you see me... Fatal error: class@anonymous in /in/0OTZ9 on line 7 Process exited with code 255. ``` But I expected this output instead: ``` class@anonymous/in/0OTZ9:3$0: now you see me... Fatal error: class@anonymous ... now you don't in /in/0OTZ9 on line 7 Process exited with code 255. ``` ### PHP Version PHP 8.3.1 ### Operating System _No response_