[PATCH] Builtins and C++ and such (take 3)

[Roger Sayle]

> >For example, during the compilation of g++.dg/inherit/template-as-base.C
> >using cc1plus duplicate_decls is never called!  Which would also explain
> >why deleting that line altogether has no effect on the regression.
>
> This particular fail is not very relevant, I believe. Currently it
> happens for 3.2 on many platforms also /without/ your latest one-line
> patch.

Ahh.  Thanks.  I was working on a patch candidate, but decided to kill
the bootstrap after stage3 when the resulting compiler didn't solve this
issue.  Several attempts later and I couldn't make the problem go away.
I'll try that first change again to see if it fixes the other regressions.

Sorry for the confusion.

Roger
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