const reflect.RecvDir

6 uses

	reflect (current package)
		type.go#L309: 	RecvDir ChanDir             = 1 << iota // <-chan
		type.go#L311: 	BothDir = RecvDir | SendDir             // chan
		type.go#L823: 	case RecvDir:
		type.go#L1607: 	case RecvDir:
		value.go#L2202: 	if ChanDir(tt.Dir)&RecvDir == 0 {
		value.go#L3095: 			if ChanDir(tt.Dir)&RecvDir == 0 {