if f.Name != ft.Name {
		t.Errorf("name=%q, want %q", f.Name, ft.Name)
	}
	if !ft.Modified.IsZero() && !equalTimeAndZone(f.Modified, ft.Modified) {
		t.Errorf("%s: Modified=%s, want %s", f.Name, f.Modified, ft.Modified)
	}
	if !ft.ModTime.IsZero() && !equalTimeAndZone(f.ModTime(), ft.ModTime) {
		t.Errorf("%s: ModTime=%s, want %s", f.Name, f.ModTime(), ft.ModTime)
	}

	}
	return fmt.Sprintf(tr.Repr, tr.FormatArgs...)
}

// Empty reports whether the result of String would be "".
func (tr *TypeRepr) Empty() bool {
	return len(tr.Repr) == 0
}

// Set modifies the type representation.
// If fargs are provided, repr is used as a format for fmt.Sprintf.
// Otherwise, repr is used unprocessed as the type representation.
func (tr *TypeRepr) Set(repr string, fargs ...interface{}) {