bug#18891: Doesn't handle pwd = /C: very well

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Date: Wed, 05 Nov 2014 17:44:44 -0500
> Cc: 18891@debbugs.gnu.org
> 
> > Don't blame me, the design seems to be older than my liaison with Emacs
> > (ange-ftp.el is copyrighted since 1989; I've started with Emacs in
> > autumn 1990, IIRC).
> 
> I guess Tramp could check if there's matching local dir and pass the
> request through untouched if there is.

If Tramp did that, how would the user tell Tramp that it should access
the remote host, even though there is a matching local file?  (The
converse situation can be handled with /: quoting.)