message: [LLDB] Select helper sign comparison fix
  The constant could be unsigned thus explicit cast to silent compilation warnings
  Reviewers: aprantl
diff: @@ -109,8 +109,8 @@ lldb_private::Status SelectHelper::Select() {
  pair.second.PrepareForSelect();
  const lldb::socket_t fd = pair.first;
  #if !defined(__APPLE__) && !defined(_MSC_VER)
  - lldbassert(fd < FD_SETSIZE);
  - if (fd >= FD_SETSIZE) {
  + lldbassert(fd < static_cast<int>(FD_SETSIZE));
  + if (fd >= static_cast<int>(FD_SETSIZE)) {
  error.SetErrorStringWithFormat("%i is too large for select()", fd);
  return error;
  }
  