Give 1dimmed arrays its own .antipairs
Give 1dimmed arrays its own .antipairs

Making it more than 3x as fast.

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