[Bug c++/114349] [14 regression] ICE when building qtwebengine with -std=gnu++14 (cxx_eval_call_expression, at cp/constexpr.cc:3027)

["jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114349

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Reduced testcase:
using A = struct {};
template <template <typename> class, typename, typename>
using B = A;
template <typename T>
using C = typename T::D;
struct E {
  using D = B<C, int, A>;
};
template <class> constexpr bool foo (A) { return false; }
template <class T> struct F {
  using G = T;
  using H = E;
  F(const F &); 
  void operator=(F) noexcept(foo <G> (H::D{}));
};
template <typename, typename, typename>
using I = F<int>;
template <typename K, typename V, typename H = K>
using J = I<K, V, H>;
struct K {
  typedef J<long, char> L;
  L k;
  K();
};
struct M {
  bool bar () const;
  K::L m;
};
K n;
bool M::bar () const { n.k = m; return true; }