[llvm] [DebugInfo] Introduce DW_AT_LLVM_language_dialect (PR #194898)

[David Blaikie via llvm-commits]

https://github.com/dwblaikie commented:

Not the biggest fan of stringly typed fields in DWARF - though it's not a hard no from me either. Maybe it's the right tool for exploration, though it'd be standardized as an enumeration with a user extension range like languages... 

Open to hearing from others on how they feel about that aspect.

https://github.com/llvm/llvm-project/pull/194898