Make %% about 14x faster for Int,Int case
Make %% about 14x faster for Int,Int case

- add candidate for Int:D, Int:D
- use native mod_i if possible

This makes "($_ if $_%%5 for 1..1000000).sum" about 3.3x faster

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