Begin supporting prodbranches in compiler-in-Tamsin.
Inching towards handling formals...
I feel the going will be slow.
A terrible stab at emit_pattern.  Oh well, gets some code in.
HELO, my Nm is __Pat__
I did say the going would be slow, I believe.
I did say it would be slow going, I think.
Woo!  Only 42 failures now!