Do some additional renaming and cleanup on Stream.sample`
Do some additional renaming and cleanup on Stream.sample`

Thanks @jvoigtlaender for finding a way to simplify this!

colinmccabe/core,rgrempel/core,martinos/core,Pisys/core,suryagaddipati/core,Dandandan/core,bradurani/core,martinos/core,isaacsanders/core,colinmccabe/core,suryagaddipati/core,simonh1000/core,rgrempel/core,simonh1000/core,vilterp/core,ThomasWeiser/core,eeue56/core,laszlopandy/core,Pisys/core,laszlopandy/core,bradurani/core,isaacsanders/core,alexiamcdonald/elm-core,Dandandan/core,eeue56/core,ThomasWeiser/core,vilterp/core,rick68/core,rick68/core,alexiamcdonald/elm-core