bug#29165: 26.0.90; can't use some code byte-compiled under emacs 24

[Eli Zaretskii <eliz@gnu.org>]

> From: Noam Postavsky <npostavs@users.sourceforge.net>
> Cc: rgm@gnu.org,  29165@debbugs.gnu.org,  raeburn@permabit.com,  p.stephani2@gmail.com,  schwab@linux-m68k.org,  monnier@iro.umontreal.ca
> Date: Sun, 21 Jan 2018 11:30:02 -0500
> 
> > Is it important enough to justify one more pretest, after 26.0.91, and
> > delay the release by a few more weeks?  Because that's what would be
> > needed if we install this on the release branch.
> 
> Hmm, no, I think these edge cases are not important enough to delay the
> release.
> 
> > Besides, this change was introduced more than a year ago, and we did
> > that in clear understanding that it changes behavior.  So "closer to
> > Emacs 25" doesn't sound like a convincing argument in this case,
> > because we gave up that similarity up front.
> 
> Well, the unfortunate thing about waiting is that we get more strict in
> v26 and then turn around in v27 and (partially) reverse the decision.
> But still, as I said above, not worth delaying the release over it.

OK, then please push to master, and thanks.