llvm-project

bbbcc1d9 - Reapply "[clang][nullability] allow _Nonnull etc on nullable class types (#82705)"

Reapply "[clang][nullability] allow _Nonnull etc on nullable class types (#82705)" This reverts commit ca4c4a6758d184f209cb5d88ef42ecc011b11642. This was intended not to introduce new consistency diagnostics for smart pointer types, but failed to ignore sugar around types when detecting this. Fixed and test added.