message: xfail TestClassParameterPack because the Clang expression parser is different in Github.
diff: @@ -4,4 +4,6 @@ from lldbsuite.test import decorators
  lldbinline.MakeInlineTest(
  __file__, globals(), [
  decorators.expectedFailureAll(
  - oslist=["windows"], bugnumber="llvm.org/pr24764")])
  + oslist=["windows"], bugnumber="llvm.org/pr24764"),
  + decorators.expectedFailureAll(
  + bugnumber="rdar://problem/31811802")])
  