bug#21473: 24.5; very slow tooltip display to sort-of-slow remote display

[Eli Zaretskii]

> From: Ken Raeburn <raeburn@permabit.com>
> Date: Wed, 7 Oct 2015 02:09:47 -0400
> Cc: 21473@debbugs.gnu.org
> 
> I wonder if it might be better to change x_set_mouse_color to check some new 
> field “f->tooltip_p” that makes it define just one cursor.  (The arrow we use 
> for non-text areas, or the vertical-bar xterm cursor we use for text?)

Fine, let's do it this way.  Can you prepare a patch along these
lines?

> Of course, there’s also the little matter of making the cursor-setting 
> actually work.  Until (unless?) that happens, we might as well disable it for 
> everyone.  I can check that in if you'd like.

Please do, and thanks.