Comment 5 for bug 1352356

This is enough:

namespace std
{
  template<class _E>
    class initializer_list;

  template<typename _Key>
    struct set
    {
      void insert(const _Key&);
    };

  struct string
  {
    string(const string&, __SIZE_TYPE__, __SIZE_TYPE__ = -1);
    string(const char*);
    string(initializer_list<char>);
  };
}

int main()
{
  std::set<std::string> s;
  s.insert( { "abc", "def", "hij"} );
}