d := &Data{}
	d.order = binary.LittleEndian
	if err := d.AddSection(".debug_rnglists", rngLists); err != nil {
		t.Fatal(err)
	}
	u := &unit{
		asize: 8,
		vers:  5,
		is64:  true,
	}
	ret, err := d.dwarf5Ranges(u, nil, 0x5fbd, 0xc, [][2]uint64{})
	if err != nil {
		t.Fatalf("could not read rnglist: %v", err)
	}
	t.Logf("%#v", ret)