[llvm] [TypeMetadataUtil][CallPromtionUtil]Add utility function getFunctionAtVTableOffset that finds functions through alias. Use it in CallPromotionUtils which didn't promote aliasee previously (PR #80736)

[Teresa Johnson via llvm-commits]

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@@ -1071,12 +1071,10 @@ bool DevirtModule::tryFindVirtualCallTargets(
     if (!Ptr)
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teresajohnson wrote:

Shouldn't this earlier call to getPointerAtOffset be removed now?

https://github.com/llvm/llvm-project/pull/80736