[clang] [clang-tools-extra] [clang-tidy] Add SARIF output to clang-tidy (PR #219182)

[Valentyn Yukhymenko via cfe-commits]

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@@ -30,6 +30,38 @@
 
 namespace clang {
 
+SarifResultLevel getSarifResultLevel(DiagnosticsEngine::Level level) {
+  switch (level) {
+  case DiagnosticsEngine::Ignored:
+    llvm_unreachable("Invalid diagnostic type");
+  case DiagnosticsEngine::Note:
+    return SarifResultLevel::Note;
+  case DiagnosticsEngine::Remark:
+    return SarifResultLevel::None;
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BaLiKfromUA wrote:

Actually, now I see that this code was here before. So probably my comment is not relevant.

Do we have tests that checks  Sarif "level" for clang-tidy note?

https://github.com/llvm/llvm-project/pull/219182