[Bug c++/116276] [14/15 regression] multiple inheritance CTAD regression with -std=c++23

[ppalka at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116276

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |ppalka at gcc dot 
gnu.org

--- Comment #1 from Patrick Palka <ppalka at gcc dot gnu.org> ---
Seems we need to implement the inherited vs non-inherited deduction guide
candidate tiebreaker from P2582R1.

And for some reason CLASSTYPE_CONSTRUCTORS only contains the first using decl,
not both..