[php-src] Issue #11320: PHP Fatal error: Cannot use list() as standalone expression

Issue: https://github.com/php/php-src/issues/11320 Author: kubawerlos ### Description The following code: ```php <?php $index = 1; function getList() { return [2, 3]; } $a = [$index => list($x, $y) = getList()]; print_r($a); ``` Resulted in this output: ``` PHP Fatal error: Cannot use list() as standalone expression in test.php on line 6 ``` But I expected this output instead: ``` Array ( [1] => Array ( [0] => 2 [1] => 3 ) ) ``` This syntax is [correct since PHP 5.4 up to 8.2](https://github.com/6b7562617765726c6f73/php-syntax/actions/runs/5082311972). Timeframe: it started to fail yesterday in PHP CS Fixer CI: - last passed build: https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/actions/runs/5070108485 - first failed build: https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/actions/runs/5075648935/jobs/9119207560 ### PHP Version 8.3.0-dev ### Operating System _No response_