[lld] [lld-macho] Implement support for ObjC relative method lists (PR #86231)

[Kyungwoo Lee via llvm-commits]

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@@ -1086,6 +1086,22 @@ static bool shouldEmitChainedFixups(const InputArgList &args) {
   return isRequested;
 }
 
+static bool shouldEmitRelativeMethodLists(const InputArgList &args) {
+  const Arg *arg = args.getLastArg(OPT_objc_relative_method_lists,
+                                   OPT_no_objc_relative_method_lists);
+  if (arg && arg->getOption().getID() == OPT_objc_relative_method_lists)
+    return true;
+  if (arg && arg->getOption().getID() == OPT_no_objc_relative_method_lists)
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kyulee-com wrote:

Can we switch the order of `OPT_no_objc_relative_method_lists` and `OPT_objc_relative_method_lists` so that we can disable the feature for the safety when both are passed?

https://github.com/llvm/llvm-project/pull/86231