message: Fix FreeBSD build.
diff: @@ -362,8 +362,9 @@ Error ProcessFreeBSD::DoLaunch(Module *module, ProcessLaunchInfo &launch_info) {
  assert(m_monitor == NULL);
  FileSpec working_dir = launch_info.GetWorkingDirectory();
  - if (working_dir &&
  - (!working_dir.ResolvePath() || !llvm::sys::fs::is_directory(working_dir.GetPath())) {
  + namespace fs = llvm::sys::fs;
  + if (working_dir && (!working_dir.ResolvePath() ||
  + !fs::is_directory(working_dir.GetPath()))) {
  error.SetErrorStringWithFormat("No such file or directory: %s",
  working_dir.GetCString());
  return error;
  