message: test constexpr ranges::swap of initializer_list now that ranges::swap uses poison pill
diff: @@ -251,13 +251,12 @@ RANGES_CXX14_CONSTEXPR auto test_init_list() -> bool {
  if (!test_crits(a)) { return false; }
  if (!test_non_member_f(a)) { return false; }
  - // std::initializer_list live in std:: so ADL will always pick std::swap
  - // std::initializer_list<int> b{5, 6, 7, 8};
  - // ranges::swap(a, b);
  - // if (ranges::index(a, 0) != 5 || ranges::index(b, 0) != 1
  - // || ranges::index(a, 3) != 8 || ranges::index(b, 3) != 4) {
  - // return false;
  - // }
  + std::initializer_list<int> b{5, 6, 7, 8};
  + ranges::swap(a, b);
  + if (ranges::at(a, 0) != 5 || ranges::at(b, 0) != 1
  + || ranges::at(a, 3) != 8 || ranges::at(b, 3) != 4) {
  + return false;
  + }
  return true;
  }
  