Add shortcut for eqv of int / Int
Add shortcut for eqv of int / Int

- makes Int eqv Int about 8x as fast
- makes int eqv int about 5x as fast
- can now check allocation free

rakudo/rakudo,Gnouc/rakudo,Gnouc/rakudo,tbrowder/rakudo,salortiz/rakudo,softmoth/rakudo,nbrown/rakudo,nbrown/rakudo,salortiz/rakudo,MasterDuke17/rakudo,labster/rakudo,labster/rakudo,tony-o/rakudo,tbrowder/rakudo,tony-o/rakudo,MasterDuke17/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,softmoth/rakudo,tbrowder/rakudo,rakudo/rakudo,nbrown/rakudo,salortiz/rakudo,rakudo/rakudo,nbrown/rakudo,Gnouc/rakudo,tony-o/rakudo,salortiz/rakudo,nbrown/rakudo,MasterDuke17/rakudo,softmoth/rakudo,labster/rakudo,tony-o/rakudo,Gnouc/rakudo,salortiz/rakudo,softmoth/rakudo,labster/rakudo,MasterDuke17/rakudo,tbrowder/rakudo,softmoth/rakudo,rakudo/rakudo,nbrown/rakudo,Gnouc/rakudo,rakudo/rakudo,tony-o/rakudo,salortiz/rakudo,tbrowder/rakudo,rakudo/rakudo,tony-o/rakudo,labster/rakudo,Gnouc/rakudo,labster/rakudo,MasterDuke17/rakudo