vm_set_eval_stack  379 vm.c               vm_set_eval_stack(th, iseq, 0, &env->block);
vm_set_eval_stack  901 vm.c               vm_set_eval_stack(th, iseq, 0, base_block);
vm_set_eval_stack   23 vm_eval.c      static void vm_set_eval_stack(rb_thread_t * th, const rb_iseq_t *iseq, const rb_cref_t *cref, rb_block_t *base_block);
vm_set_eval_stack 1370 vm_eval.c      	vm_set_eval_stack(th, iseq, cref, base_block);