.hash on [Bag|Mix][Hash]? types must not stringify keys
.hash on [Bag|Mix][Hash]? types must not stringify keys

Fixes RT#128806

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