Some suggestions/improvements:

• The tool currently prints macros before functions when listing all the symbols in a module. It would make more sense if the functions were printed before the macros.
• Some modules may not have symbols across all three categories, e.g. a module may not have macros or fields. It would be clearer if we explicitly printed that there are no macros/fields, or skip printing the titles instead of printing the titles and having nothing follow after them.