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

[Igor Kudrin via llvm-commits]

igorkudrin wrote:

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

You are only responsible for the code and files that you are adding or changing. To keep your commit atomic and focused, you should not update anything unrelated to the purpose of the PR. However, if you wish, you can prepare a separate NFC PR to align other files with the current Coding Standards. Of course, you are not obliged to do so.

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