--- Tracer.set_get_line_procs(filename, proc)
--- Tracer.set_get_line_procs(filename) { |line| ...}
        եˤĤѤ롢ֹ椫饽ΤιԤƤ֤
        ³ꤹ롣ꤷʤХǥեȤưѤ롣
        ꤹ³ϹֹͣΰȤƸƤӽФ롣

