[clang] [llvm] [UBSan] Implement src:*=sanitize for UBSan (PR #140529)

[Vitaly Buka via cfe-commits]

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@@ -63,6 +63,11 @@ Error SpecialCaseList::Matcher::insert(StringRef Pattern, unsigned LineNumber,
                        .moveInto(Pair.first))
       return Err;
     Pair.second = LineNumber;
+  } else {
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vitalybuka wrote:

Please move llvm/lib/Support/SpecialCaseList.cpp and llvm/unittests/Support/SpecialCaseListTest.cpp into a separate list

https://github.com/llvm/llvm-project/pull/140529