T-Engine

This code:

function player.make_savefile_descriptor()
   return anything_undefined
end

Results in T-Engine loading to a blackscreen and locked condition, requiring a forced close and deletion of the relevant savefile to correct. Presumably babyface is grabbing all savefile descriptors for all modules before it displays the menu, and is failing to confirm that function returns are valid. So if one savefile in a single module has a bug...the entire engine dies.

Proposed solution: Add some error checking to babyface. T-Engine should not depend on every single module savefile to be error free to load its menu.