bug#28403: 25.2; find-tag works, but xref-find-definitions doesn't; bug?

[Drew Adams]

> Today I noticed the message about find-tag being (supposedly)
> obsoleted by xref-find-definitions as of Emacs version 25.1,

Does it really say that `find-tag' is "obsolete"?  Ah, yes
it does.  I'm surprised.  That's too bad.

We couldn't just have *added* the `xref' stuff, as an
alternative?  Bad enough that keys bound by default to other
commands were immediately sacrificed to xref, but deprecating
those other commands?

> So, xref-find-definitions is not yet a complete replacement
> for find-tag.  Since etags puts such lines in TAGS and
> xref-find-definitions is unable to match up the name with
> the tag, it looks like a bug / deficiency in
> xref-find-definitions.

Dommage.  On n'arrete pas le progres...