Module Dependency Pass-Thru

I am wondering if I am doing something wrong, or not selecting the correct options because I feel like this should just work.

Imagine a project containing 3 Actionscript modules.

Module A
Module B
Module C

Module A has no Dependencies.
Module B Depends on Module A
Module C Depends on Module B.

When working in Module C I think I should get code completion from Module A due to the fact that Module C depends on B which Depends on A.
Does this make sense? Am I doing something wrong, or missing a checkbox somewhere to make this happen?

thanks,
-ross