clash-prelude-hedgehog's data types should have a Show instance.

[lmbollen]

SomeVec is a datatype which is used in generators, however Hedgehog's forAll function
https://hackage.haskell.org/package/hedgehog-1.1.1/docs/Hedgehog-Internal-Property.html#v:forAll

forAll :: (Monad m, Show a, HasCallStack) => Gen a -> PropertyT m a requires a Show instance for a.

Hence, all datatypes in clash-prelude-hedgehog that are used in generators should have a Show instance.

[martijnbastiaan]

We've released v1.6.3, which includes a fix for this issue.