bug#22438: 24.5; Orphaned tooltip kills daemon (Lucid)

[Eli Zaretskii]

> From: Óscar Fuentes <ofv@wanadoo.es>
> Cc: 22438@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>
> Date: Sat, 23 Jan 2016 00:56:03 +0100
> 
> Nicole Edwards <nnnnnn@posteo.net> writes:
> 
> > If I call up (or dismiss all but) one frame, ask it to display
> > a tooltip, then destroy it while the tooltip is open, the tooltip
> > remains open, and unless I create a new frame within a few seconds,
> > Emacs dies.  (Mercifully, so does the tooltip.)
> 
> [snip]
> 
> The problem is in src/xfns.c:6087. Emacs explicitly redisplays the
> current frame's menu bar without testing that it is alive. The patch
> below solves the problem. Eli, ok to commit?

Yes, thanks.  To the emacs-25 branch, please.