of a supertype and subtype, where the subtype was not yet added to
the tenv. Had to hack to get around that one.
Also little problems like the fact that list can be captured by the
user program, so we can't use that -- used list* (with a null at the
end) and null (for empty lists) instead.
Since the power was down and I couldn't get the earlier stuff committed,
I have even more changes. Bug-fixes, mostly, though now top-level
functions that are defined consecutively are mutually recursive as they
should be.
svn: r300
