[Bug c++/118760] [12/13/14/15 Regression] Alias template in dependent base used via injected-class-name incorrectly rejected

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118760

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks like we are losing that `typename` was used here:
        if (TREE_CODE (f) != TYPENAME_TYPE)