const runtime.waitReasonChanReceiveNilChan

3 uses

	runtime (current package)
		chan.go#L466: 		gopark(nil, nil, waitReasonChanReceiveNilChan, traceEvGoStop, 2)
		runtime2.go#L991: 	waitReasonChanReceiveNilChan                      // "chan receive (nil chan)"
		runtime2.go#L1021: 	waitReasonChanReceiveNilChan:    "chan receive (nil chan)",