[Bug c++/52841] [4.7/4.8 Regression] error: type 'Solvable' is not a base type for type 'Resolvable'

[fabien at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52841

fabien at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |WAITING
         AssignedTo|fabien at gcc dot gnu.org   |unassigned at gcc dot
                   |                            |gnu.org

--- Comment #10 from fabien at gcc dot gnu.org 2012-05-04 19:45:46 UTC ---
I no longer work on it, so it is more honest to set this bug as unassigned.

The patch I attached here fixes the problem, because it bypasses a deeper
issues.
Returning the earliest possible in cp_parser_alias_declaration makes sense to
me because there are probably much more using-declarations than
alias-declarations to parse at the moment. However, I do not want to submit it
because I think we should fix the real issue as well.

I had a look on non-matching parse_tentatively/definitely, without finding
anything suspect. If one needs some details about what goes wrong -- if I was
unclear here and in previous comments --, do not hesitate to ask me.