[perl6]: * Undef no longer needs its own WHAT method, as we "inherit" it from   Perl6Object. * Also we no longer have/need a Perl6Undef class.
[perl6]:
* Undef no longer needs its own WHAT method, as we "inherit" it from
  Perl6Object.
* Also we no longer have/need a Perl6Undef class.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@24515 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

tkob/parrot,fernandobrito/parrot,tkob/parrot,gagern/parrot,gitster/parrot,FROGGS/parrot,gitster/parrot,gagern/parrot,FROGGS/parrot,tkob/parrot,FROGGS/parrot,youprofit/parrot,parrot/parrot,youprofit/parrot,tkob/parrot,gitster/parrot,tkob/parrot,fernandobrito/parrot,youprofit/parrot,parrot/parrot,fernandobrito/parrot,tkob/parrot,gagern/parrot,gitster/parrot,youprofit/parrot,tkob/parrot,youprofit/parrot,youprofit/parrot,FROGGS/parrot,tewk/parrot-select,gitster/parrot,gagern/parrot,gitster/parrot,tewk/parrot-select,gitster/parrot,gagern/parrot,gagern/parrot,tewk/parrot-select,tewk/parrot-select,youprofit/parrot,fernandobrito/parrot,fernandobrito/parrot,parrot/parrot,tewk/parrot-select,FROGGS/parrot,parrot/parrot,FROGGS/parrot,FROGGS/parrot,fernandobrito/parrot,FROGGS/parrot,tewk/parrot-select,tewk/parrot-select,fernandobrito/parrot,parrot/parrot,gagern/parrot,tkob/parrot,youprofit/parrot