Structs
Builder for DWARF packages, add input objects/packages with add_input_object or input objects
referenced by an executable with add_executable before accessing the completed object with
finish.
Enums
Diagnostics (and contexts) emitted during DWARF packaging.
Should missing DWARF objects referenced by executables be skipped or result in an error?
Traits
Session is expected to be implemented by users of thorin, allowing users of thorin to
decide how to manage data, rather than thorin having arenas internally.