[lld] [lld-macho] Fix erasing category names for ObjC categories (PR #99400)

[Vincent Lee via llvm-commits]

================
@@ -0,0 +1,307 @@
+; REQUIRES: aarch64
+
+
+; Here we test that if we defined a protocl MyTestProtocol and also a category MyTestProtocol
----------------
thevinster wrote:

```suggestion
; Here we test that if we defined a protocol MyTestProtocol and also a category MyTestProtocol
```

https://github.com/llvm/llvm-project/pull/99400