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Herbert Valerio Riedel authored
This implements the missing `{set,clear,complement}BitBigNat` primitives and hooks them up to `Natural`'s `Bits` instance. This doesn't yet benefit `Integer`, as we still need "negative" `BigNat` variants of those primitives. Addresses #7860 (partly) Reviewed By: bgamari Differential Revision: https://phabricator.haskell.org/D3415