Add more types around descriptor processing.
Add more types around descriptor processing.

claudiopro/babel,hzoo/babel,shuhei/babel,claudiopro/babel,hulkish/babel,Skillupco/babel,guybedford/babel,babel/babel,chicoxyzzy/babel,babel/babel,babel/babel,maurobringolf/babel,hulkish/babel,samwgoldman/babel,guybedford/babel,chicoxyzzy/babel,kaicataldo/babel,chicoxyzzy/babel,vadzim/babel,jridgewell/babel,jridgewell/babel,chicoxyzzy/babel,maurobringolf/babel,kaicataldo/babel,kaicataldo/babel,jridgewell/babel,shuhei/babel,samwgoldman/babel,Skillupco/babel,PolymerLabs/babel,claudiopro/babel,existentialism/babel,hulkish/babel,hzoo/babel,existentialism/babel,kaicataldo/babel,Skillupco/babel,Skillupco/babel,hzoo/babel,existentialism/babel,PolymerLabs/babel,maurobringolf/babel,shuhei/babel,jridgewell/babel,kellyselden/babel,PolymerLabs/babel,kellyselden/babel,vadzim/babel,babel/babel,guybedford/babel,hzoo/babel,kellyselden/babel,kellyselden/babel,hulkish/babel,samwgoldman/babel