Reply to Jarrett,
Hm, actually.. If you *are* using D2, you might be able to replace the GC interface with a "debug" interface that just forwards calls to the normal GC. This is a capability druntime inherited from the Tango runtime - the GC is separated from the rest of the standard library and can actually be replaced at link-time. I don't know if D2 links all three parts of druntime into a single library or not, though.
Someone should make such a GC shell. You could add a BanAlloc(bool) option that would turn on an assert on any allocation. This could be set and cleared around the RT parts of the code.
