Fixed one of the causes of keyframes not being able to be inserted. For ID-types where inheritence of the basic wrapping of the struct (i.e. for Lamp blocks, shadow and other lamp-type specific settings were only defined in subclasses of the Lamp struct), the RNA_id_pointer_create() function now performs additional refinement of the PointerRNA so that the pointer will be resolved correctly to allow access to these settings.
The other case which is unresolved for now is nestled structs. The RNA_path_from_ID_to_property() needs modification for this, but dunno how yet.
5c96cd0319