   0  inline_call_r_i <JitCode 'ObjectType.unbox'>, R[%r0, %r1] -> %i0
   7  -live- %i0
  10  residual_call_ir_r $<* fn ll_str__IntegerR_SignedConst_Signed>, I[%i0], R[], <CallDescr(i) EF=3> -> %r0
  18  -live- %r0
  21  ref_return %r0
