Re: [RFA/stabs] fix failed assertion during replacement of undefined type

[Joel Brobecker <brobecker at adacore dot com>]

> > The compiler ended up emitting the following debugging info for this
> > type, which is incomplete:
> > 
> >     .stabs  "pck__data_t:t(0,32)=B(0,33)=xepck__data_t:",128,0,3,0
> 
> I think we should simply refuse this.  It's circular and obviously
> broken.  We have a reference to a named type and the reference is
> clearly intended to be to a non-volatile type, so GDB blowing up is
> not entirely unreasonable.

I agree that the stabs is wrong, and that we should refuse it. The problem
is that I haven't found a better way of doing that while reading the stabs,
so I decided to do it during the final phase when we are fixing undefined
types.

-- 
Joel