   0  inline_call_r_r <JitCode 'allocate_instance__ClassMethod'>, R[%r0] -> %r0
   6  -live- %r0
   6  -live- %r0
   6  jit_force_quasi_immutable %r0, FieldDescr<pypy.interpreter.function.ClassMethod.mutate_w_function>
  10  setfield_gc_r %r0, $<* struct pypy.interpreter.baseobjspace.W_Root>, FieldDescr<pypy.interpreter.function.ClassMethod.inst_w_function>
  15  ref_return %r0
