Added methods for examining inheritance and referencing, ie. finding the declaring class for a field, and finding the where a field is reverse referenced
Added methods for examining inheritance and referencing, ie. finding the declaring class for a field, and finding the where a field is reverse referenced



Former-commit-id: 28d642f5c3d635950f1aada1404b6e48a84553fb
julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine,julie-sullivan/phytomine