[llvm] [NFC] Separate UnwindTable from DebugFrame into a different type (PR #142521)

[Igor Kudrin via llvm-commits]

https://github.com/igorkudrin approved this pull request.

LGTM. Please update the headers for the new files as @ilovepi suggested. Please wait a couple of days in case @dwblaikie has anything to add.

https://github.com/llvm/llvm-project/pull/142521