// { dg-do compile }// Origin: Volker Reichelt <reichelt@igpm.rwth-aachen.de>// PR c++/10555: ICE for member class template when one of the// template argument levels contains errors.template <typename> struct A{    template <typename> struct B;};template <typename T> struct C{    typedef typename A<T>::template B<U> X; // { dg-error "declared|invalid" }};C<void> c;