func New (typ <type 26>) <type 1>;
func NewAt (typ <type 26>, p <type 7>) <type 1>;
const Ptr <type 28> = 22 ;
func PtrTo (t <type 26>) <type 26>;
const RecvDir <type 29> = 1 ;
const SendDir <type 29> = 2 ;
const Slice <type 28> = 23 ;
type <type 60 "SliceHeader" <type 61 struct { Data <type -13>; Len <type -11>; Cap <type -11>; }>>;
const String <type 28> = 24 ;

	}
	return 0
}

func (t *Type) Common() *Type {
	return t
}

type ChanDir int

const (
	RecvDir    ChanDir = 1 << iota         // <-chan
	SendDir                                // chan<-
	BothDir            = RecvDir | SendDir // chan
	InvalidDir ChanDir = 0
)

// ChanType represents a channel type
type ChanType struct {
	Type
	Elem *Type
	Dir  ChanDir
}

// This must match ../reflect/value.go:/runtimeSelect
type runtimeSelect struct {
	dir selectDir
	typ unsafe.Pointer // channel type (not used here)
	ch  *hchan         // channel
	val unsafe.Pointer // ptr to data (SendDir) or ptr to receive buffer (RecvDir)
}

// These values must match ../reflect/value.go:/SelectDir.
type selectDir int

const (
	_             selectDir = iota
	selectSend              // case Chan <- Send

		}
		om := fmtsort.Sort(val)
		for _, m := range om {
			oneIteration(m.Key, m.Value)
		}
		return
	case reflect.Chan:
		if val.IsNil() {
			break
		}
		if val.Type().ChanDir() == reflect.SendDir {
			s.errorf("range over send-only channel %v", val)
			break
		}
		i := 0
		for ; ; i++ {
			elem, ok := val.Recv()
			if !ok {
				break
			}
			oneIteration(reflect.ValueOf(i), elem)
		}

	return nil
}

// removeEmptyDirs works backwards from endDir to baseDir and removes each directory
// if it is empty.  It stops once it encounters a directory that has content
func removeEmptyDirs(baseDir, endDir string) error {
	if !mount.PathWithinBase(endDir, baseDir) {
		return fmt.Errorf("endDir %q is not within baseDir %q", endDir, baseDir)
	}

	for curDir := endDir; curDir != baseDir; curDir = filepath.Dir(curDir) {

		baseDir     string
		endDir      string
		expectError bool
	}{
		{
			name: "all-empty",
			prepare: func(base string) error {
				return os.MkdirAll(filepath.Join(base, "a/b/c"), defaultPerm)
			},
			validate: func(base string) error {
				return validateDirEmpty(filepath.Join(base, "a"))
			},
			baseDir:     "a",
			endDir:      "a/b/c",
			expectError: false,
		},
		{