Rework handling of labeled statements to distinguish C<case:> pass-through.
Rework handling of labeled statements to distinguish C<case:> pass-through.

gagern/parrot,gagern/parrot,parrot/parrot,FROGGS/parrot,tkob/parrot,tkob/parrot,youprofit/parrot,youprofit/parrot,gagern/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,gagern/parrot,FROGGS/parrot,FROGGS/parrot,FROGGS/parrot,gitster/parrot,FROGGS/parrot,gagern/parrot,tkob/parrot,parrot/parrot,youprofit/parrot,gagern/parrot,parrot/parrot,youprofit/parrot,tkob/parrot,gitster/parrot,youprofit/parrot,gitster/parrot,gitster/parrot,gitster/parrot,tkob/parrot,gitster/parrot,youprofit/parrot,tkob/parrot,gagern/parrot,FROGGS/parrot,parrot/parrot,gitster/parrot,parrot/parrot,tkob/parrot,youprofit/parrot,FROGGS/parrot