[php-src] Issue #8349: `isset` (and `??` operator) must emit a notice if the inner expression is non-array

Issue: https://github.com/php/php-src/issues/8349 Comment Author: mvorisek No, please no, what is the point of keeping open issue count low? When an issue is closed, there is much less chance that someone will find it. On the other side, everyone can see how old the issue is. This is how bugs.php.net works/ed, some issues are commented for many years until they are addressed.