[Bug c++/89611] Compilation ok with 'class', but ko with 'struct'

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89611

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
That is change:
template<class... Ts> class Visitor : Ts... {

To:
template<class... Ts> class Visitor : public Ts... {