Hint Resolve contextlist'_head contextlist'_tail.

Lemma eval_simple_list_steps:
forall rl vl, eval_simple_list' rl vl ->
forall C, contextlist' C ->
star Csem.step ge (ExprState f (C rl) k e m)
E0 (ExprState f (C (rval_list vl rl)) k e m).