const runtime.traceBlockChanRecv

3 uses

	runtime (current package)
		chan.go#L639: 	gopark(chanparkcommit, unsafe.Pointer(&c.lock), waitReasonChanReceive, traceBlockChanRecv, 2)
		traceruntime.go#L94: 	traceBlockChanRecv
		traceruntime.go#L113: 	traceBlockChanRecv:           "chan receive",