[project @ 2005-04-16 16:05:52 by ross]

[project @ 2005-04-16 16:05:52 by ross]
Rejig handling of environments in arrow notation: instead of the
proc_level stuff, we just record the environment of the proc, and
use that on the left side of -< and the head of (|...|).

This also makes the arrow1 test yield a compile error, as it should,
but the error message is uninformative.