[GIT-PULLS] [php-src] PR #23224: zend_language_parser: Remove unused backup_lex_pos

[email protected] (ydah)
Newsgroups php.git-pulls
Message-ID <[email protected]> 
Pull Request: https://github.com/php/php-src/pull/23224
Author: ydah

`backup_lex_pos` is an empty grammar production used by the arrow function rule to save `LANG_SCNG(yy_text)`, but its semantic value is never consumed.

Remove the unused production and adjust the semantic value references in the arrow function rule accordingly. No runtime behavior is intended to change.
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.