[llvm] [llvm-ar][Object][COFF] Add support for EC symbols to llvm-ar. (PR #85230)

[Jacek Caban via llvm-commits]

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@@ -807,6 +827,30 @@ computeMemberData(raw_ostream &StringTable, raw_ostream &SymNames,
     }
   }
 
+  if (SymMap) {
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cjacek wrote:

It's generally tested by #82898. This case uses GNU format, which can't have EC symbols. I added one more test here as well.

https://github.com/llvm/llvm-project/pull/85230