[lld] [LLD, MachO] Default objc_relative_method_lists on MacOS11+/iOS14+ (PR #101360)

[via llvm-commits]

zeroomega wrote:

> TestCallThatThrows

@alx32  my test run showed `PASS: lldb-api :: commands/expression/call-throws/TestCallThatThrows.py (51 of 111)`
with #104081 landed and #102420 reverted.
Passed task: https://ci.chromium.org/ui/p/fuchsia/builders/toolchain.ci.shadow/clang-mac-x64/b8739505848970808785/overview

https://github.com/llvm/llvm-project/pull/101360