Fix line number reporting in extend_vtable_output_is and add a failing test for Parrot_PMC_cmp_pmc
Fix line number reporting in extend_vtable_output_is and add a failing test for Parrot_PMC_cmp_pmc

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