bug#37633: Column part interpreted wrong in compilation mode

[Eli Zaretskii]

> From: Bernd Paysan <bernd@net2o.de>
> Cc: anton@mips.complang.tuwien.ac.at, 37633@debbugs.gnu.org
> Date: Sun, 06 Oct 2019 21:02:14 +0200
> 
> if the editor mistook a UTF-8 file for an iso8859-1, it will see an
> UTF-8 string "äöü" (6 bytes UTF-8) as "äöü" (6 bytes iso8859-1).
> But it's still 6 bytes.

Not inside the Emacs buffer, it isn't.