Fix Hash.Map
Fix Hash.Map

- handle case of completely empty Hash
- add support for :view parameter
- create actual cow copy otherwise

tbrowder/rakudo,Gnouc/rakudo,usev6/rakudo,b2gills/rakudo,tony-o/rakudo,b2gills/rakudo,Gnouc/rakudo,zostay/rakudo,jonathanstowe/rakudo,nbrown/rakudo,rakudo/rakudo,rakudo/rakudo,b2gills/rakudo,labster/rakudo,nbrown/rakudo,awwaiid/rakudo,raydiak/rakudo,usev6/rakudo,usev6/rakudo,samcv/rakudo,b2gills/rakudo,salortiz/rakudo,zostay/rakudo,nbrown/rakudo,labster/rakudo,salortiz/rakudo,raydiak/rakudo,tony-o/rakudo,salortiz/rakudo,MasterDuke17/rakudo,zostay/rakudo,rakudo/rakudo,salortiz/rakudo,awwaiid/rakudo,labster/rakudo,MasterDuke17/rakudo,lucasbuchala/rakudo,rakudo/rakudo,sjn/rakudo,Gnouc/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,b2gills/rakudo,softmoth/rakudo,jonathanstowe/rakudo,softmoth/rakudo,jonathanstowe/rakudo,MasterDuke17/rakudo,tony-o/rakudo,MasterDuke17/rakudo,sjn/rakudo,softmoth/rakudo,sjn/rakudo,rakudo/rakudo,zostay/rakudo,sjn/rakudo,Gnouc/rakudo,nbrown/rakudo,awwaiid/rakudo,lucasbuchala/rakudo,tony-o/rakudo,MasterDuke17/rakudo,labster/rakudo,sjn/rakudo,lucasbuchala/rakudo,salortiz/rakudo,labster/rakudo,Gnouc/rakudo,lucasbuchala/rakudo,softmoth/rakudo,nbrown/rakudo,tbrowder/rakudo,tbrowder/rakudo,samcv/rakudo,labster/rakudo,tbrowder/rakudo,usev6/rakudo,usev6/rakudo,tbrowder/rakudo,samcv/rakudo,jonathanstowe/rakudo,rakudo/rakudo,salortiz/rakudo,samcv/rakudo,tony-o/rakudo,softmoth/rakudo,raydiak/rakudo,jonathanstowe/rakudo,lucasbuchala/rakudo,Gnouc/rakudo,tony-o/rakudo,awwaiid/rakudo,awwaiid/rakudo,raydiak/rakudo,nbrown/rakudo,samcv/rakudo