   0  inline_call_ir_r <JitCode 'interp_w__ClassMethod'>, I[$False], R[%r0] -> %r0
   8  -live- %r0, %r1
   8  -live- %r0, %r1
   8  jit_force_quasi_immutable %r0, FieldDescr<pypy.interpreter.function.ClassMethod.mutate_w_function>
  12  setfield_gc_r %r0, %r1, FieldDescr<pypy.interpreter.function.ClassMethod.inst_w_function>
  17  ref_return $<* struct pypy.interpreter.baseobjspace.W_Root>
