CVS hackery

[Stephen Weeks]

> One other note; Is there any way for the layout of a SSA program to fail?
> A problem I ran into with the CPS IL when debugging a new pass was that
> with the .cps and .dot files wanting the exception stacks, inferHandlers
> might raise on a malformed program and would leave me without any output
> to look at what was causing the problem.

Layout should not fail.  If it does, this is a bug (actually, the dominator
stuff may fail, but I'm working on that as we speak).  Inferhandlers is no
longer a problem, since it is gone!  Handlers are now explicitly stated in the
Call transfer.