ede-check-project-directory
ede-check-project-directory is a compiled Lisp function in `ede.el
'.
(ede-check-project-directory DIR)
Check if DIR should be in `ede-project-directories'.
If it is not, try asking the user if it should be added; if so,
add it and save `ede-project-directories' via Customize.
Return nil if DIR should not be in `ede-project-directories'.