[Bug c++/117993] [15 regression] inherited variables and functions not found in nested class

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117993

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #2)
> Confirmed.  Fails with 20240727 but worked with 20240710 .

I suspect r15-2117-g313afcfdabeab3 (which is in the time frame).

```
    .... and
    qualified lookup finds nothing at template definition time, then we
    know it'll find nothing at instantiation time (unless the current
    instantiation has dependent bases).
```


I suspect for some reason we think the current instantiation does not have a
dependent base for some reason.