not used to alter code gen yet.

(the .c generated prior to optimization contains
a zero-sized union though, which is wrong)

also: TRUE and FALSE were wrong way round (oops)
and I have removed ABORT.. explicit error mesgs on stderr now.

renamed some procedures.
some silly little { onto new lines.
important change: added the print functions and prototypes.

added verbose flag.

parameters.

parsing done, just needs decs updating now..