[llvm] [BasicBlockUtils] Handle funclets when detaching EH pad blocks (PR #157363)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Can I please ask you @dtcxzyw to run your pre commit checks for this PR? I think they would be relevant here. Thank you.

No new crashes.


https://github.com/llvm/llvm-project/pull/157363