cni-changes documented?

[Tom Tromey]

Adam> How hard would it be to change GCC's internal representation of a
Adam> pointer to a pointer-to-a-pointer (handle)?  Could this be done as a
Adam> thin layer over the backend (ie a "filter" over the code generator)?

Once upon a time there was partial code for this in gcj.  At some
point Zack removed it, since it was just a lot of dead baggage.
Still, you could go back and look at what was done.

Tom