[clang] [clang] [diagnostics] Add `-fdiagnostics-add-output` switch for SARIF (PR #185201)

[Dave Bartolomeo via cfe-commits]

================
@@ -50,6 +50,15 @@ namespace clang {
 class SarifDocumentWriter;
 class SourceManager;
 
+struct SarifVersion {
+  StringRef SchemaVersion;
+  StringRef CommandLineVersion;
+  StringRef SchemaURI;
+  bool IsDefault;
+
+  bool isDefault() const { return IsDefault; }
----------------
dbartol wrote:

Oh, that function was left over from something I was trying with `llvm::find_singleton`. I've removed it and just stuck with `std::mem_fn` on the variable.


https://github.com/llvm/llvm-project/pull/185201