A first working version of the WordPress functions dumper.
At least it does something useful now
I’ve pushed a working version of the plugin to GitHub which also comes with the added bonus of doing something.
The plugin will add a button to the admin toolbar 
and clicking the, now alone, “Dump functions” link will unleash AJAX magic to create a dump of currently defined functions in the plugin /dumps folder. 
Why?
The functions dump will be used to create custom adapter classes for themes and plugins developed using TDD techniques.
Next
Some more education on the plugin side and back to custom adapter classes.