parrot pmc2c debugging

.perldb

# -*- perl -*- for parrot pmc2c WB debugging
# perl -d -Ilib tools/build/pmc2c.pl --dump  src/pmc/fixedintegerarray.pmc
sub afterinit {
  push @DB::typeahead, (
    "c 51", "s",
    #"b postpone Parrot::Pmc2c::PMC::Null::pre_method_gen",
    "b Parrot::Pmc2c::Dumper::dump_pmc",
    "b Parrot::Pmc2c::Emitter::add_write_barrier",
    "b Parrot::Pmc2c::PCCMETHOD::rewrite_RETURNs"
    );
}