const runtime.waitReasonChanReceiveNilChan

3 uses

	runtime (current package)
		chan.go#L516: 		gopark(nil, nil, waitReasonChanReceiveNilChan, traceBlockForever, 2)
		runtime2.go#L1065: 	waitReasonChanReceiveNilChan                      // "chan receive (nil chan)"
		runtime2.go#L1106: 	waitReasonChanReceiveNilChan:    "chan receive (nil chan)",