[llvm] [llvm-objdump][macho] Add support for ObjC relative method lists (PR #84250)

[antoine moynault via llvm-commits]

antmox wrote:

Hi, this commit probably broke some bots:
https://lab.llvm.org/buildbot/#/builders/178/builds/7028
https://lab.llvm.org/buildbot/#/builders/182/builds/9282
https://lab.llvm.org/buildbot/#/builders/186/builds/15299
https://lab.llvm.org/buildbot/#/builders/187/builds/14564
Could you please look at this?

https://github.com/llvm/llvm-project/pull/84250