bug#65418: 29.1; Eglot: support clangd inactiveRegions extension

[Eli Zaretskii]

> From: João Távora <joaotavora@gmail.com>
> Date: Mon, 4 Sep 2023 02:08:47 +0100
> Cc: Felician Nemeth <felician.nemeth@gmail.com>, 65418@debbugs.gnu.org, 
>       Philip Kaludercic <philipk@posteo.net>
> 
> I'm assuming you don't have a problem with that, else, we'll have to
> find another solution.  Eli, can we send Filippo a CA request form?

Done off-list.