Better testing of ClassDescriptor, especially inheritance.
Better testing of ClassDescriptor, especially inheritance.



Former-commit-id: ae743ea02b80ce0fe8dd6108289ed004991ed420
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine