Add support for `next foo` to (node|deep|duck)map
Add support for `next foo` to (node|deep|duck)map

This appeared to have been forgotten.

rakudo/rakudo,salortiz/rakudo,labster/rakudo,salortiz/rakudo,tbrowder/rakudo,tbrowder/rakudo,labster/rakudo,tbrowder/rakudo,salortiz/rakudo,labster/rakudo,salortiz/rakudo,rakudo/rakudo,salortiz/rakudo,MasterDuke17/rakudo,labster/rakudo,MasterDuke17/rakudo,rakudo/rakudo,rakudo/rakudo,salortiz/rakudo,labster/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,rakudo/rakudo,MasterDuke17/rakudo,rakudo/rakudo,tbrowder/rakudo,labster/rakudo,tbrowder/rakudo