(Adds Wall Street close)Â
  * Wall Street closes at record highsÂ
  * Flash PMI data mixed, COVID worries hurt outlookÂ
  * Oil up; U.S. dollar, U.S. treasury yields riseÂ
  By Jessica DiNapoliÂ
  NEW YORK, July 23 (Reuters) – All three major U.S. stock…







