[lld] [lld][MachO] Support for -interposable (PR #131813)

[Shoaib Meenai via llvm-commits]

smeenai wrote:

You can add `-v` to your clang command to see how it invokes lld, to check what arguments to pass for the platform version. You don't need to necessarily use the newer platform version in your test though, just change it to do `objdump -d` instead and verify that the call to `my_func` goes through a stub.

https://github.com/llvm/llvm-project/pull/131813