[clang] [lldb] [llvm] [AArch64][TargetParser] autogen ArchExtKind enum - renaming (PR #90320)

[Tomas Matheson via llvm-commits]

tmatheson-arm wrote:

Thanks for the comments everyone. Given that this requires an IR break and additions to the importer, and there is still some question about which way to go with the renaming (i.e. FEAT_ names or user-facing names) I think it makes sense to defer renaming until later. For now, I will add mechanisms to handle the various inconsistencies as in https://github.com/llvm/llvm-project/pull/90987.

https://github.com/llvm/llvm-project/pull/90320