Data.Semigroup and Data.List.NonEmpty are not findable now, as of GHC8 they are in base so the semigroups package no longer exports them. The public hoogle needs to use the new GHC8 docs? See https://github.com/ekmett/semigroups/issues/78
It can if you use the Hoogle 5 instance - see http://hoogle.haskell.org/?hoogle=semigroup. I really should switch one to redirect to the other, but I keep waiting for a few improvements first...
Data.Semigroup and Data.List.NonEmpty are not findable now, as of GHC8 they are in base so the
semigroups
package no longer exports them. The public hoogle needs to use the new GHC8 docs? See https://github.com/ekmett/semigroups/issues/78