bug#8145: Crash in multibyte_chars_in_text

[Eli Zaretskii]

> From: Michel de Ruiter <michel@sentient.nl>
> Date: Tue, 1 Mar 2011 12:47:30 +0100
> Cc: 
> 
> I just experienced an Emacs crash, and I can reproduce it consistently with 
> the latest pretest.
> Steps:
> - make sure the directory "U:\Privé\ab" exists (mind the accent!)
> - set find-file-existing-other-name to t
> - set w32-downcase-file-names to t as well
> - have "U:\Privé\ab" as the current working directory
> - press Ctrl-x Ctrl-f c d
> 
> On typing the 'd' (or whatever key you type there) Emacs crashes.

FWIW, I cannot reproduce this.  I don't have a U: drive, and couldn't
make a directory with a Latin character (my locale is different), but
I did create a directory on D: with a non-ASCII character it its name,
and in that directory put an empty file "ab".  "C-x C-f cd" didn't
crash.