message: xfail the test I added as it is failing for the same reason the original test from
  this fail was failing.
diff: @@ -24,6 +24,7 @@ class ExecTestCase(TestBase):
  self.do_test(False)
  @skipUnlessDarwin
  + @expectedFailureAll(oslist=['macosx'], bugnumber="rdar://29291115")
  @expectedFailureAll(archs=['i386'], bugnumber="rdar://28656532")
  @expectedFailureAll(oslist=["ios", "tvos", "watchos", "bridgeos"], bugnumber="rdar://problem/34559552") # this exec test has problems on ios systems
  def test_skipping_exec (self):
  