treelang fix for rs6000 / treelang not proper front end

[Jeff Sturm]

On Mon, 9 Jun 2003, Steven Bosscher wrote:
> The front ends that do not build functions as trees right now are:
> - G77, which is obsolete.  Nobody has shown interest in even trying to
> make it build functions as trees AFAIK.  Scheduled for removal once G95
> has proven itself.
> - Ada, for which work to make it build functions as trees has been
> announced a few times (but nothing so far, fingers crossed... ;-)
> - Treelang...

- And the Java bytecode frontend.  (Gcj is two frontends in one, a source
parser and a bytecode reader.)

Jeff