const reflect.RecvDir

6 uses

	reflect (current package)
		type.go#L345: 	RecvDir ChanDir             = 1 << iota // <-chan
		type.go#L347: 	BothDir = RecvDir | SendDir             // chan
		type.go#L1044: 	case RecvDir:
		type.go#L1800: 	case RecvDir:
		value.go#L1507: 	if ChanDir(tt.dir)&RecvDir == 0 {
		value.go#L2255: 			if ChanDir(tt.dir)&RecvDir == 0 {