Reduce the number of DYNAMIC calls when hypering
Reduce the number of DYNAMIC calls when hypering

In a profile of '^Inf .hyper.grep( *.is-prime ).skip(9999).head', calls
to DYNAMIC to 576 CPU msecs.  With this patch it goes down to 0.07 msecs.
So this should have at least have a positive effect on total CPUY usage
when hypering.

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