   0  residual_call_r_i $<* fn W_NDIter.iternext>, R[%r0], <CallDescr(r) EF=5> -> %i0
   7  -live- %i0
   7  -live- %i0
   7  goto_if_not %i0, L1
  11  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
  13  ---
  13  L1:
  13  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
