[lld] [lld-macho] Category Merger: add support for addrsig references (PR #90903)

[Vincent Lee via llvm-commits]

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@@ -461,6 +462,7 @@ class ObjcCategoryMerger {
                                      uint32_t offset);
   void tryEraseDefinedAtIsecOffset(const ConcatInputSection *isec,
                                    uint32_t offset);
+  void eraseSymbolAtIsecOffset(ConcatInputSection *isec, uint32_t offset);
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thevinster wrote:

Unused? 

https://github.com/llvm/llvm-project/pull/90903