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

[Saleem Abdulrasool via cfe-commits]

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@@ -2601,6 +2604,22 @@ def SwiftError : InheritableAttr {
   let Documentation = [SwiftErrorDocs];
 }
 
+def SwiftImportAsNonGeneric : InheritableAttr {
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compnerd wrote:

Wasn't this attribute dropped?  I thought that the last usage of this was removed from the SDK and this is now vestigial.

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