[pmc] fix class WBs, detected by ZYROz
[pmc] fix class WBs, detected by ZYROz

isa_pmc, freeze have a manual WBs
thawfinish, remove_attribute indirectly via build_attrib_index
name needs one for the write case

youprofit/parrot,youprofit/parrot,FROGGS/parrot,tkob/parrot,tkob/parrot,youprofit/parrot,tkob/parrot,parrot/parrot,youprofit/parrot,FROGGS/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot,tkob/parrot,parrot/parrot,FROGGS/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,parrot/parrot,tkob/parrot,youprofit/parrot,FROGGS/parrot,youprofit/parrot,FROGGS/parrot,tkob/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot