message: remove FreeBSD xfail decorator from TestExitDuringBreak
  This test passes for me on FreeBSD 10 and 12(-CURRENT).
  llvm.org/pr18190
diff: @@ -26,9 +26,6 @@ class ExitDuringBreakpointTestCase(TestBase):
  @expectedFailureAll(
  oslist=["linux"],
  bugnumber="llvm.org/pr15824 thread states not properly maintained")
  - @expectedFailureAll(
  - oslist=["freebsd"],
  - bugnumber="llvm.org/pr18190 thread states not properly maintained")
  def test(self):
  """Test thread exit during breakpoint handling."""
  self.build(dictionary=self.getBuildFlags())
  