bug#31027: 27.0.50; xref, tags-location-ring equivalent

[Dmitry Gutov]

On 4/2/18 9:06 PM, Charles A. Roelli wrote:
> tags-location-ring seems to have no replacement in xref.el.
>
> from etags.el:
> (defvar tags-location-ring (make-ring xref-marker-ring-length)
>    "Ring of markers which are locations visited by \\[find-tag].
> Pop back to the last location with \\[negative-argument] \\[find-tag].")
>
> We should add a "xref-location-ring" (or similar) that stores the
> locations visited by "xref-find-definitions", and we can allow jumping
> to them with C-u - M-., in the same way as "find-tag" does.

What about 'M-x previous error'? Or 'C-u - M-x next-error', to mirror 
your example.