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

[Daniel Bertalan via llvm-commits]

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@@ -1,3 +1,6 @@
+# TODO: `-objc_relative_method_lists` is turned on by default.
+# Adding `-no_objc_relative_method_lists` explicitly here to avoid crashing.
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BertalanD wrote:

Is my understanding correct that these crashes only occur when category merging (which is still of by default) is enabled alongside relative method lists?

If not, I'd like to see the crashes fixed first.

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