bug#9639: 24.0.90; Problem with bury-buffer in minibuffer-hide-completions

[martin rudalics]

> No.  Either both are deleted or both are iconified, since (again) it is
> mostly a choice that depends on the general window-manager usage and
> user preference.
>
>> Basically, it would be nice to get rid of either `bury-buffer' or
>> `quit-window'.  Having two functions do approximately the same thing is
>> neither reasonable for developers nor for users.
>
> I think both are in fairly wide use, so getting rid of one of them is
> not really an option.  But I hope we can define one in terms of
> the other (or both in terms of a third internal one).

I now try to handle burying buffers via `quit-window' and `bury-buffer'
in a uniform manner.  All this in a new function called `window--delete'
(which is also called by `replace-buffer-in-windows' although the latter
always deletes the frame if possible).

martin