[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:

And "Pair.second = LineNumber;" is not a solution:
More generic case it will solve https://github.com/llvm/llvm-project/pull/140855 (please review and merge)


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