Add count-only/bool-only/sink-all
Add count-only/bool-only/sink-all

If a List is completely reified, we don't need to run through it to
find out how many elements, any elements, or just sink the whole thing.

samcv/rakudo,raydiak/rakudo,MasterDuke17/rakudo,labster/rakudo,tbrowder/rakudo,sjn/rakudo,labster/rakudo,nbrown/rakudo,Gnouc/rakudo,jonathanstowe/rakudo,labster/rakudo,salortiz/rakudo,usev6/rakudo,labster/rakudo,rakudo/rakudo,awwaiid/rakudo,salortiz/rakudo,samcv/rakudo,jonathanstowe/rakudo,softmoth/rakudo,rakudo/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,awwaiid/rakudo,tbrowder/rakudo,Gnouc/rakudo,jonathanstowe/rakudo,tony-o/rakudo,tbrowder/rakudo,samcv/rakudo,salortiz/rakudo,rakudo/rakudo,tbrowder/rakudo,tbrowder/rakudo,jonathanstowe/rakudo,usev6/rakudo,tony-o/rakudo,softmoth/rakudo,MasterDuke17/rakudo,samcv/rakudo,sjn/rakudo,rakudo/rakudo,lucasbuchala/rakudo,Gnouc/rakudo,nbrown/rakudo,tony-o/rakudo,usev6/rakudo,MasterDuke17/rakudo,sjn/rakudo,nbrown/rakudo,raydiak/rakudo,sjn/rakudo,rakudo/rakudo,salortiz/rakudo,labster/rakudo,raydiak/rakudo,MasterDuke17/rakudo,usev6/rakudo,Gnouc/rakudo,tbrowder/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,rakudo/rakudo,nbrown/rakudo,awwaiid/rakudo,tony-o/rakudo,lucasbuchala/rakudo,softmoth/rakudo,Gnouc/rakudo,nbrown/rakudo,usev6/rakudo,sjn/rakudo,softmoth/rakudo,labster/rakudo,awwaiid/rakudo,jonathanstowe/rakudo,softmoth/rakudo,samcv/rakudo,tony-o/rakudo,Gnouc/rakudo,nbrown/rakudo,salortiz/rakudo,tony-o/rakudo,awwaiid/rakudo,lucasbuchala/rakudo,salortiz/rakudo,raydiak/rakudo