[llvm] [IR] Use EXPORTAS for ARM64EC mangled symbols with dllexport attribute. (PR #81940)

[Jacek Caban via llvm-commits]

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@@ -18,8 +18,10 @@
 #include "llvm/IR/DerivedTypes.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Module.h"
+#include "llvm/Object/COFF.h"
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cjacek wrote:

I didn't know that inline functions are a problem, sorry. I created #87191 moving those helpers to `Mangler.h`.

https://github.com/llvm/llvm-project/pull/81940