Add methods for protocols that Objective-C interfaces claim to
implement. Separate class methods from instance methods in
internal data structures. Add layout constraints with visual
formats to examples/app. Fix typedefs for wrapped objective-c
object types.
method. Multiple bug fixes in type system, fixed parsing of id,
instancename and instancetype, allow NullableAnnotations after
generic lists (e.g. "id<ObjectType> _Nullable"). Helper function
to identify types that are function pointers.
