[llvm] [DebugInfo] Move `codeview::SourceLanguage` enumerators to CodeViewLanguages.def (NFC) (PR #141750)

[Hans Wennborg via llvm-commits]

https://github.com/zmodem commented:

LLVM does this a lot, but I think there has to be some benefit, otherwise it's just extra indirection over a having a regular enum.

I don't know if the enum you're creating in #137223 is enough of a motivation. Does it really have much benefit over just storing the original enum values + tag in an unsigned? The new enum seems to be mostly used by looking at the tag and then casting to one of the original enums anyway.

https://github.com/llvm/llvm-project/pull/141750