AIX, Solaris 2.8 excess errors fails

[Benjamin Kosnik]

> I disagree; this is a known limitation, not a failure.  These are tests for
> library functionality, so workarounds are fine.

Yep. That's what I'm thinking too.

We've been through this at least once before: I think the conclusion from 
the first time around was that the g++ testsuite would test for specific 
linkage and compiler issues, and the library would test 17-27. Makes 
sense to me.

I've got a patch for the remaining fail, that I'll be checking in shortly.

-benjamin