bug#45052: 27.1; GDB completion moves point

[Eli Zaretskii]

> From: "Philip K." <philipk@posteo.net>
> Cc: 45052@debbugs.gnu.org
> Date: Sat, 05 Dec 2020 15:01:28 +0100
> 
> > Does the patch below give good results, and doesn't produce any
> > adverse effects in other use cases?
> 
> It seems to work, and I can't see any unintended side-effects!

Thanks.  If you use gdb-mi.el a lot, how about if you run with this
change for a week and report back if you saw any adverse effects?
Then I'll install this if no problems are uncovered.