},
	{
		Name: "time-22738.zip",
		File: []ZipTestFile{
			{
				Name:     "file",
				Content:  []byte{},
				Mode:     0666,
				Modified: time.Date(1999, 12, 31, 19, 0, 0, 0, timeZone(-5*time.Hour)),
				ModTime:  time.Date(1999, 12, 31, 19, 0, 0, 0, time.UTC),
			},
		},
	},
	{
		Name: "dupdir.zip",
		File: []ZipTestFile{
			{
				Name:     "a/",
				Content:  []byte{},

	names := []string{
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/333/file.txt",
		"0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/file.txt",

	//      this is OK since r0 == $0, but the latter is preferred.
	ADD $0, R6, R5             	// 7ca60214

        //TODO: the assembler rewrites these into ADDIS $19, R5, Rx and ADD $-10617, Rx, Rx, but the test only sees the first ADDIS
	ADD $1234567, R5                // 3ca50013 or 0600001238a5d687
	ADD $1234567, R5, R6            // 3cc50013 or 0600001238c5d687

		return false
	}
	minor := strings.TrimSuffix(strings.TrimPrefix(name, "go1."), ".txt")
	n, err := strconv.Atoi(minor)
	if err != nil {
		log.Fatalf("unexpected api file: %v", name)
	}
	return n >= 19 // started tracking approvals in Go 1.19
}

func (w *Walker) collectDeprecated() {
	isDeprecated := func(doc *ast.CommentGroup) bool {
		if doc != nil {
			for _, c := range doc.List {