friend declaration implicitly provides a prototype

[Giovanni Bajo]

Bernardo Innocenti wrote:

> My test case appears most appropriate for PR8280,

Yes, it's exactly that.

> This problem seems easy to analyze.  I'd like to give it a try as an
> opportunity to teach myself something about the C++ frontend.
> Will you be helping me in case I get stuck? ;-)

I wouldn't even know where to start with this bug. Plus, given my recent
failures with name lookups, I don't think I'm the right person to ask :)
If you're interested in looking into this problem, I think you're better off
speaking with Kriang, he often takes care of issues about friendship.

Giovanni Bajo