message: Xfail TestConcurrentTwoWatchpointsOneSignal on arm
  r317561 exposed an interesting bug (pr35228) in handling of simultaneous
  watchpoint hits. Disabling the test until we can get that fixed.
diff: @@ -15,6 +15,7 @@ class ConcurrentTwoWatchpointsOneSignal(ConcurrentEventsBase):
  @skipIfFreeBSD # timing out on buildbot
  # Atomic sequences are not supported yet for MIPS in LLDB.
  @skipIf(triple='^mips')
  + @expectedFailureAll(bugnumber="llvm.org/pr35228", archs=["arm", "aarch64"])
  @add_test_categories(["watchpoint"])
  def test(self):
  """Test two threads that trigger a watchpoint and one signal thread. """
  