message: Try to workaround the TestQueues.py flakyness
  This is not a fix, but if I understand enough of the issue, it should
  bail out early of the test when in a situation that would result in
  a failure down the road.
diff: @@ -357,6 +357,11 @@ class TestQueues(TestBase):
  queue_performer_2, 1, 9999)
  self.check_running_and_pending_items_on_queue(queue_performer_3, 4, 0)
  + for th in process.threads:
  + if th.GetThreadID() == lldb.LLDB_INVALID_QUEUE_ID:
  + print("Cannot get thread <=> queue associations")
  + return
  +
  self.check_number_of_threads_owned_by_queue(queue_submittor_1, 1)
  self.check_number_of_threads_owned_by_queue(queue_performer_1, 1)
  self.check_number_of_threads_owned_by_queue(queue_performer_2, 1)
  