more opcodes, symbols,
more opcodes, symbols,

collect symbol literals into a list.
op_gist: expose that list.
vm_do_ffi:
  new rtype arg.
  process results depending on rtype.
  use int-return, by-ref result.
vm_go:
  lots of arithmetic opcodes.
  makei: make any immediate.

samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler