[clang] [APINotes] Upstream Sema logic to apply API Notes to decls (PR #73017)

[Saleem Abdulrasool via cfe-commits]

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@@ -2622,6 +2641,31 @@ def SwiftPrivate : InheritableAttr {
   let SimpleHandler = 1;
 }
 
+def SwiftVersioned : Attr {
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compnerd wrote:

I think that we should name this `SwiftVersionedAddition` to match the `SwiftVersionedRemoval`.

https://github.com/llvm/llvm-project/pull/73017