const runtime.waitReasonSynctestChanSend

4 uses

	runtime (current package)
		chan.go#L281: 		reason = waitReasonSynctestChanSend
		runtime2.go#L1086: 	waitReasonSynctestChanSend                        // "chan send (synctest)"
		runtime2.go#L1133: 	waitReasonSynctestChanSend:      "chan send (synctest)",
		runtime2.go#L1189: 	waitReasonSynctestChanSend:    true,