Fix for RT #119521
Fix for RT #119521

- now returns Nil if there's no more OUTER to be found
- perhaps this should be a Failure instead, but Nil seemed more appropriate to me
- also fixed this for OUTERS::

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