- change NAMED to be Renderer<Named> and render Named's name. It was used in
multiple places with arbitrary arguments, not only Named: change renderers in
those places to TO_STRING
- add STRING, which is Renderer<String> and renders string itself. Change all
places where strings were used with either TO_STRING or NAMED to STRING
- change NOT_AN_ANNOTATION_CLASS diagnostic to be reported on descriptor, not
any string
- change "unused variable/parameter" diagnostics to be reported on
VariableDescriptor, not Object
Alexander Udalov