[llvm] [lit] Support wildcard in --xfail-not option (PR #151191)

[Mircea Trofin via llvm-commits]

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@@ -2175,6 +2175,8 @@ def parseIntegratedTestScript(test, additional_parsers=[], require_script=True):
     assert parsed["DEFINE:"] == script
     assert parsed["REDEFINE:"] == script
     test.xfails += parsed["XFAIL:"] or []
+    if test.xfails and test.skip_xfail:
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mtrofin wrote:

You are right. This also means that `--xfail-not` overrides `--skip-xfail`, but that's OK (as in, just need to document it.)

https://github.com/llvm/llvm-project/pull/151191