bug#25071: 26.0.50; Various Forth related improvements for etags

[Eli Zaretskii]

> From: Helmut Eller <eller.helmut@gmail.com>
> Date: Wed, 30 Nov 2016 12:29:40 +0100
> 
> I'd like to propose a patch to etags for better Forth support.

Thanks!

> With the patch, etags creates explicit tag names.  That works better in
> combination with tag-exact-match-p.

Can you explain more about this?  Explicit tag names bloat the TAGS
files, so other languages don't use that by default, except where
really needed.  Could it be that only some tags need to be written as
explicit, e.g. because they contain some special characters?

Also, it sounds like you send a patch wrt emacs-25 branch; if so,
please rebase on master, since that is where the patch will be pushed
eventually.  The test files are in a different place on master.

Thanks again for working on this.