[llvm] [llvm][Dwarf] Create re-usable constants for C-language DWARFv6 language codes (PR #163199)

[Adrian Prantl via llvm-commits]

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@@ -246,29 +262,29 @@ inline std::optional<SourceLanguage> toDW_LANG(SourceLanguageName name,
   case DW_LNAME_C: // YYYYMM, K&R 000000
     if (version == 0)
       return DW_LANG_C;
-    if (version <= 198912)
+    if (version <= DW_LANG_VERSION_C89)
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adrian-prantl wrote:

Right, we would either need one macro per language or a real lookup table. And wether the table lives in code or data doesn't make a huge difference.

https://github.com/llvm/llvm-project/pull/163199