if sel.Indirect() {
			direct = "->"
		}
		got := [2]string{
			sel.String(),
			fmt.Sprintf("%s%v", direct, sel.Index()),
		}
		want := wantOut[syntax]
		if want != got {
			t.Errorf("%s: got %q; want %q", syntax, got, want)
		}
		delete(wantOut, syntax)

		// We must explicitly assert properties of the
		// Signature's receiver since it doesn't participate
		// in Identical() or String().

		if sel.Indirect() {
			direct = "->"
		}
		got := [2]string{
			sel.String(),
			fmt.Sprintf("%s%v", direct, sel.Index()),
		}
		want := wantOut[segment]
		if want != got {
			t.Errorf("%s: got %q; want %q", segment, got, want)
		}
		delete(wantOut, segment)

		// We must explicitly assert properties of the
		// Signature's receiver since it doesn't participate
		// in Identical() or String().

	res, err := cst.c.Get(cst.ts.URL)
	if res != nil {
		defer res.Body.Close()
	}
	got := fmt.Sprint(err)
	wantSub := "too many 1xx informational responses"
	if !strings.Contains(got, wantSub) {
		t.Errorf("Get error = %v; want substring %q", err, wantSub)
	}
}

// Issue 26161: the HTTP client must treat 101 responses
// as the final response.

	seen := make(map[loader.Sym]struct{})
	rval := make([]bool, len(want))
	wantm := make(map[string]int)
	for k, w := range want {
		wantm[w] = k
	}
	count := 0
	for _, s := range undefs {
		if _, ok := seen[s]; ok {
			continue
		}
		seen[s] = struct{}{}
		if k, ok := wantm[ctxt.loader.SymName(s)]; ok {
			rval[k] = true
			count++
			if count == len(want) {