Ping^3: [patch] Fix PR c++/23118, ICE on invalid overloading

[Volker Reichelt]

The patch

  http://gcc.gnu.org/ml/gcc-patches/2005-08/msg00821.html

for an ICE on invalid code like

  struct A
  {
    void foo();
    virtual void foo();
  };

is still unreviewed. The bug is a 3.4/4.0/4.1 regression.

Thanks,
Volker