[php-src] Issue #14961: Comments between object operator and semi-reserved name result in parse error

Issue: https://github.com/php/php-src/issues/14961 Author: bwoebi ### Description The following code: ```php <?php class A { public $class = A::class; } var_dump((new A)-> /* a meaningful comment */ class); ``` Resulted in this output: ``` Parse error: syntax error, unexpected token "class", expecting identifier or variable or "{" or "$" in /in/8t7hs on line 7 ``` But I expected this output instead: ``` string(1) "A" ``` Looks like we're popping out of ST_LOOKING_FOR_PROPERTY when encountering a comment, leaving us in a bad state. ### PHP Version master (all versions of PHP 8) ### Operating System _No response_