bug#33870: 27.0.50; xref-goto-xref not configurable

[martin rudalics]

> Actually we already have established naming convention:
>
> display-buffer-below-selected
> display-buffer-at-bottom
>
> Removing the common prefix gives us the names of alist entries:
>
> below-selected
> at-bottom
>
> Using the same naming convention suggests more names:
>
> above-selected
> at-top
> ...

I know.  But I have this idea of providing

- one function that catches all cases

- with one nomenclature for a reference window

- and one nomenclature for the direction wrt the reference window.

So while 'below-selected' fits into this nomenclature, 'at-top'
doesn't.

martin