Make sure we can return Nil as a result of Promise
Make sure we can return Nil as a result of Promise

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