const reflect.SendDir

9 uses

	reflect (current package)
		type.go#L340: 	SendDir                                 // chan<-
		type.go#L341: 	BothDir = RecvDir | SendDir             // chan
		type.go#L952: 	case SendDir:
		type.go#L1772: 	case SendDir:
		value.go#L1184: 	if ChanDir(tt.Dir)&SendDir == 0 {
		value.go#L2032: 	if ChanDir(tt.Dir)&SendDir == 0 {
		value.go#L2835: 			if ChanDir(tt.Dir)&SendDir == 0 {

	github.com/google/go-cmp/cmp/internal/value
		name.go#L56: 		if t.ChanDir() == reflect.SendDir {

	text/template
		exec.go#L435: 		if val.Type().ChanDir() == reflect.SendDir {