message: Avoid a couple of warnings
diff: #include "util/test_path.hpp"
  #include "test_all.hpp"
  -int main(int argc, const char *argv[])
  +int main()
  {
  std::string tmp_dir{[NSTemporaryDirectory() UTF8String]};
  realm::test_util::set_test_path_prefix(tmp_dir);
  