GC vs Resource management.

[monnoroch via Digitalmars-d]

> The most problematic implication would be that classes with 
> destructors will form a hierarchy separate from Object.

What for? As i understand object's dtor does nothing, so for any 
class we can determine, if dtor is empty. I don't see a problem 
here.
Cycles and locks for RC are the biggest problems, if you ask me.
Also, what about arrays and maps?