const runtime.sigReceiving

5 uses

	runtime (current package)
		sigqueue.go#L64: 	sigReceiving
		sigqueue.go#L110: 		case sigReceiving:
		sigqueue.go#L111: 			if sig.state.CompareAndSwap(sigReceiving, sigIdle) {
		sigqueue.go#L147: 				if sig.state.CompareAndSwap(sigIdle, sigReceiving) {
		sigqueue.go#L192: 	for sig.state.Load() != sigReceiving {