bug#74339: 30.0.92; CC Mode stomps C TS Mode

[Dmitry Gutov <dmitry@gutov.dev>]

On 24/11/2024 07:27, Eli Zaretskii wrote:
>> Date: Sun, 24 Nov 2024 04:56:24 +0200
>> Cc:74339@debbugs.gnu.org
>> From: Dmitry Gutov<dmitry@gutov.dev>
>>
>> On 23/11/2024 21:40, Eli Zaretskii wrote:
>>> Like the patch below.  Is it okay?
>> I think it will do what you want it to do, so okay in that sense.
> If you disagree with "what I want it to do", please tell.  I think we
> should install this because it does the same as c-ts-mode does.  For
> Emacs 30, this is what we can do.  So if you are not happy with that
> for ruby-mode, for some reason other than the basic fact that loading
> packages changes things, I'd like to know that before I decide whether
> to install this.

I'm not happy about it because it doesn't seem like an improvement 
overall (specifically - that we decided that the order of loading 
packages should affect things as well). But it doesn't seem worth 
arguing about right now, given the broader context.

And I see where you're coming from: we didn't manage to agree on any 
other instrument for CC Mode to "undo" the runtime change by c-ts-mode, 
and since ruby-ts-mode uses the same variable, consistency asks it to 
follow.

We're still going to land in a halfway zone, though, given that for 
example js-ts-mode alters auto-mode-alist, and js-mode doesn't switch it 
back. Same for python-ts-mode, html-ts-mode, json-ts-mode, css-ts-mode.