c++/6289: partial template specialization and friend

[Wolfgang Bangerth]

> the testcase can be reduced even further to the following code snippet
> which still crashes gcc 3.1 as of 20020506.
>
> ---------------------------snip here--------------------------
> struct A
> {
>    typedef int type;
> };
>
> template <typename T>
> class B
> {
>    typedef A::type X;
>    friend class X;
> };
> ---------------------------snip here--------------------------

This is illegal, by the way, as a _real_ class is expected in a friend 
declaration, not a typedef. Someone may reclassify this bug as 
ice-on-illegal then.

Regards
  Wolfgang


-------------------------------------------------------------------------
Wolfgang Bangerth                  email:           bangerth@math.ethz.ch
                                   www: http://www.math.ethz.ch/~bangerth