[RFA] Improve completion of locations

[Fernando Nasser]

Thanks Elena and Daniel for your reviews of Eli's patch.  I really
appreciate it.

Eli, Your original patch with the fix you've added as per Daniel
request, Elena's "++" suggestion and the adjusts to after JT's changes
is approved.

As I said, the evil is in the original definition of "linespecs" which
leads to so many ambiguous cases. So, we will have to live with
incremental fixes (and eventually unwanted side-effects).

And thank you very much for all the completer improvements you've sent.

Regards,
Fernando

P.S.: My apologies for the delay in responding.  I have a considerably
long queue of patches to review right now.

-- 
Fernando Nasser
Red Hat Canada Ltd.                     E-Mail:  fnasser@redhat.com
2323 Yonge Street, Suite #300
Toronto, Ontario   M4P 2C9