frame_args_info (Debugger::Context)

    /*
     *   call-seq:
     *      context.frame_args_info(frame_position=0) -> list
            if track_frame_args or nil otherwise
     *
     *   Returns info saved about call arguments (if any saved).
     */
    static VALUE
    context_frame_args_info(int argc, VALUE *argv, VALUE self)
    {
        VALUE frame;
        debug_context_t *debug_context;

        debug_check_started();
        frame = optional_frame_position(argc, argv);
        Data_Get_Struct(self, debug_context_t, debug_context);

        return RTEST(track_frame_args) ? GET_FRAME->arg_ary : Qnil;
    }