const runtime.waitReasonChanSend

3 uses

	runtime (current package)
		chan.go#L257: 	gopark(chanparkcommit, unsafe.Pointer(&c.lock), waitReasonChanSend, traceEvGoBlockSend, 2)
		runtime2.go#L1003: 	waitReasonChanSend                                // "chan send"
		runtime2.go#L1033: 	waitReasonChanSend:              "chan send",