bug#20385: [PROPOSED PATCH] Support quoting 'like this' in doc strings

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Paul Eggert <eggert@cs.ucla.edu>,  20385@debbugs.gnu.org
> Date: Tue, 21 Apr 2015 14:04:59 -0400
> 
> > So if we want this to become our default, we need changes in
> > ispell.el, to replace ’ with ' before we sent it to the speller.  Or
> > maybe recommend users to install *.aff files that already support ’,
> > assuming such dictionaries exist.
> 
> Another approach would be to keep `...' in the files, but use
> redisplay/font-lock tricks to display them ‘like-this’.

Which tricks did you have in mind?  Overlays?