[llvm] [CodeGen][ARM64EC] Mangle EH personality handler names (PR #121652)

[Jacek Caban via llvm-commits]

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@@ -12,6 +12,7 @@
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Function.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/Mangler.h"
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cjacek wrote:

That `#include` is no longer needed. LGTM otherwise.

https://github.com/llvm/llvm-project/pull/121652