Add Junction.INFIX-TWO internal helper method
Add Junction.INFIX-TWO internal helper method

- swaps two Junctions in place if they should for infix usage
- returns a truthy value if the Junction types are the same

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