[llvm] [Offload][OpenMP] Prettify error messages by "demangling" the kernel name (PR #101400)

[Johannes Doerfert via llvm-commits]

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@@ -186,4 +192,55 @@ bool isCombinedConstruct(Directive D) {
   // Otherwise directive-name is a combined construct.
   return !getLeafConstructs(D).empty() && !isCompositeConstruct(D);
 }
+
+std::string prettityFunctionName(StringRef FunctionName) {
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jdoerfert wrote:

ups. I think I was trying to type "prettify".

https://github.com/llvm/llvm-project/pull/101400