bug#59351: 29.0.50; [PATCH] Fix mouse click position to menu bar entry

[Eli Zaretskii]

> From: Manuel Giraud <manuel@ledu-giraud.fr>
> Cc: 59351@debbugs.gnu.org
> Date: Fri, 18 Nov 2022 13:12:57 +0100
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> >> From: Manuel Giraud <manuel@ledu-giraud.fr>
> >> Date: Fri, 18 Nov 2022 09:37:20 +0100
> >> 
> >> What is not in this patch: The height of the menu bar is not
> >> recalculated correctly.
> >
> > Why not?  And why did you not include that in the patch?
> 
> It is not that I don't want to… but I have not yet found how to do it.
> As you know, Emacs display code is hard to understand.

display_menu_bar is supposed to update the metrics of the menu-bar
line, see the call to compute_line_metrics at its end.  Why doesn't it
happen?