Typechecker: Simplify width(2^^n) to n + 1
#1803
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This simplification ends up being critical in order to typecheck the code in the SPHINCS+ spec in `cryptol-specs`, as Cryptol's reasoning about exponentiation is otherwise not complete enough. Fixes #1802.
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marsella
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This simplification ends up being critical in order to typecheck the code in the SPHINCS+ spec in
cryptol-specs, as Cryptol's reasoning about exponentiation is otherwise not complete enough.Fixes #1802.