Commit 6391979febc for php

commit 6391979febc3de1bc8dfb1206e0f77b62208b96d
Merge: 091829738a8 91281f86bdf
Author: ndossche <7771979+ndossche@users.noreply.github.com>
Date:   Mon Oct 19 18:58:51 2026 +0200

    Merge branch 'PHP-8.6'

    * PHP-8.6:
      Fix GH-24391: JIT: switch on constant null takes default instead of case 0