   0  inline_call_r_i <JitCode 'ObjectType.unbox'>, R[%r0, %r1] -> %i0
   7  -live- %i0
  10  goto_if_not %i0, L1
  14  ref_return $<* struct rpy_string>
  16  ---
  16  L1:
  16  ref_return $<* struct rpy_string>
