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

[AmirHossein PashaeeHir via llvm-commits]

amsen20 wrote:

> 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.

All the `DebugInfo/DWARF` do not follow this new header style, should I apply this style to this new files or all of them?

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