eval_string       825 vm_eval.c          return eval_string(self, src, scope, file, line);
eval_string       831 vm_eval.c          return eval_string(rb_vm_top_self(), rb_str_new2(str), Qnil, "(eval)", 1);
eval_string       896 vm_eval.c      	val = eval_string(rb_vm_top_self(), cmd, Qnil, 0, 0);