[llvm] [llvm-objdump][macho] Add support for ObjC relative method lists (PR #85477)

[Amy Kwan via llvm-commits]

amy-kwan wrote:

@alx32, thank you for the fix! I've actually applied it locally to a ppc64be machine myself and that patch resolves the issue.

https://github.com/llvm/llvm-project/pull/85477