[Bug c++/122699] [16 Regression] ICE in make_dependency, at cp/module.cc:14467

[nshead at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122699

--- Comment #2 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
Reduced:

  // a.cpp
  export module M;
  export namespace ns {
    template <typename> struct S {
      friend void f();
    };
    void f();
  }

  // b.cpp
  export module X;
  import M;
  ns::S<int> s;