[clang] [clang-tools-extra] [llvm] [clang] Introduce diagnostics suppression mappings (PR #112517)

[kadir çetinkaya via cfe-commits]

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@@ -599,6 +600,19 @@ DiagnosticIDs::getDiagnosticSeverity(unsigned DiagID, SourceLocation Loc,
       SM.isInSystemMacro(Loc))
     return diag::Severity::Ignored;
 
+  // Apply suppression mappings if severity wasn't explicitly mapped with a
+  // clang-diagnostics pragma to ensure pragmas always take precedence over
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kadircet wrote:

pragma takes precedence and we don't suppress via the mappings. do you think the comment needs rewording?

https://github.com/llvm/llvm-project/pull/112517