const runtime.waitReasonSynctestChanSend

4 uses

	runtime (current package)
		chan.go#L281: 		reason = waitReasonSynctestChanSend
		runtime2.go#L1267: 	waitReasonSynctestChanSend                        // "chan send (durable)"
		runtime2.go#L1317: 	waitReasonSynctestChanSend:      "chan send (durable)",
		runtime2.go#L1397: 	waitReasonSynctestChanSend:      true,