cycle dependencies

[DigitalDesigns]

Seriously stupid bug here!

I had an enum an static this() { } (empty, forgot why I added it) 
one module and an struct in another module that converted values 
from the enum. I imported only that enum and guess what?!?! Cycle 
dependency! removed the static this() { } and worked!

The cycle dependency checking code is far too ignorant. It just 
blindly checks without any rationale. Someone said this was 
because phobos had a bug in it so the cycles were checked, maybe 
it's time to address that issue rather than breaking code 
arbitrarily?