Add narrower candidates for infix min and max
Add narrower candidates for infix min and max

Add :D candidate for Int, int, Num, and num and implement them in nqp.
Makes `Int:D max Int:D` about 3x faster.

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