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

[Boaz Brickner via cfe-commits]

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@@ -946,6 +953,24 @@ class DiagnosticsEngine : public RefCountedBase<DiagnosticsEngine> {
     return (Level)Diags->getDiagnosticLevel(DiagID, Loc, *this);
   }
 
+  /// Diagnostic suppression mappings can be used to ignore diagnostics based on
+  /// the file they occur in. Mapping file is expected to be a special case list
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bricknerb wrote:

How about, instead "to ignore diagnostics based on the file they occur in", say "to avoid generating specific diagnostics in specific files" or perhaps "to suppress" or something similar?
I'm not sure "ignore diagnostics" clarifies the behavior.

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