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

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``````````bash
darker --check --diff -r HEAD~1...HEAD llvm/utils/lit/lit/Test.py llvm/utils/lit/lit/TestRunner.py llvm/utils/lit/lit/cl_arguments.py llvm/utils/lit/lit/main.py llvm/utils/lit/tests/xfail-cl.py
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View the diff from darker here.
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``````````diff
--- lit/Test.py	2025-07-30 22:51:40.000000 +0000
+++ lit/Test.py	2025-07-30 22:54:18.112521 +0000
@@ -244,14 +244,14 @@
         # A list of conditions under which this test is expected to fail.
         # Each condition is a boolean expression of features, or '*'.
         # These can optionally be provided by test format handlers,
         # and will be honored when the test result is supplied.
         self.xfails = []
-        
+
         # Skip this test if it's xfail.
         self.skip_xfail = False
-        
+
         # If true, ignore all items in self.xfails.
         self.xfail_not = False
 
         # A list of conditions that must be satisfied before running the test.
         # Each condition is a boolean expression of features. All of them
--- lit/cl_arguments.py	2025-07-30 22:51:40.000000 +0000
+++ lit/cl_arguments.py	2025-07-30 22:54:18.894153 +0000
@@ -304,11 +304,11 @@
         default=os.environ.get("LIT_XFAIL_NOT", ""),
     )
     selection_group.add_argument(
         "--skip-xfail",
         help="do not XFAIL tests with paths in the semicolon separated list.",
-        default = False,
+        default=False,
         action="store_true",
     )
     selection_group.add_argument(
         "--num-shards",
         dest="numShards",

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