Oh yeah juhas request (more than a recommendation than request) to port a scripting IDE to lazarus
Sounds like a good idea although I have forgotten what it was about.
This timing statistics feature sounds good, too.
I personally miss a project metrics feature even more. It is also statistics but about the code already created instead of time.
Lines of code, amount of comments, maybe some code quality analysis, etc.
Codetools provide most tools to implement it I guess.
Anyway, it does not compete with the feature you are planning now. They are both usefull.