[m-dev.] diff: pass typeclass-info args to C code

[Zoltan Somogyi]

> +             write_pred_progress_message("% Transforming polymorphism for ",
> +                     PredId, ModuleInfo0, IO0, IO1),

I haven't read the rest of the diff, but I want to point out that there
is already code for printing progress messages for polymorphism.m. It is
commented out since it leads to far too many messages.

Zoltan.