bug#47300: delete-window to select window with same position

[martin rudalics]

>> It's not about "selecting a window", it's about "setting a frame's
>> selected window".
>
> I just tried to keep the prefix `delete-window-...'.
> Then maybe `delete-window-set-selected'?

Not very illustrative either.

>> In general, just plugging in some existing function would usually fail
>> here and I would like to avoid the illusion that it could work.  Also,
>> as you can see with the 'pos' case, some work must be done _before_
>> calling `delete-window-internal' so the actual work would have to be
>> split among two functions at least.
>
> The 'pos' case is an exception.  What I meant is simple cases
> like customizing to 'get-lru-window'.

That one would have to handle the 'no-other-window' parameter.  And we
would have to mix functions and constants as customizable values which
looks queer in the customization interface.

martin