   0  getfield_gc_r %r0, FieldDescr<rpython.rlib.streamio.TextInputFilter.inst_base> -> %r0
   5  -live- %i0, %r0
   5  guard_class %r0 -> %i1
   8  getfield_raw_i %i1, FieldDescr<rpython.rlib.streamio.Stream_vtable.cls_close1> -> %i1
  13  -live- %i0, %i1, %r0
  13  int_guard_value %i1
  15  residual_call_ir_v %i1, <IndirectCallTargets>, I[%i0], R[%r0], <CallDescr(ri) EF=7>
  23  -live-
  23  void_return
