const runtime.traceEvGoBlockRecv

2 uses

	runtime (current package)
		chan.go#L577: 	gopark(chanparkcommit, unsafe.Pointer(&c.lock), waitReasonChanReceive, traceEvGoBlockRecv, 2)
		trace.go#L47: 	traceEvGoBlockRecv       = 23 // goroutine blocks on chan recv [timestamp, stack]