const runtime.evacuatedEmpty

6 uses

	runtime (current package)
		map.go#L96: 	evacuatedEmpty = 4 // cell is empty, bucket is evacuated.
		map.go#L900: 		if isEmpty(b.tophash[offi]) || b.tophash[offi] == evacuatedEmpty {
		map.go#L1166: 					b.tophash[i] = evacuatedEmpty
		map_fast32.go#L402: 					b.tophash[i] = evacuatedEmpty
		map_fast64.go#L404: 					b.tophash[i] = evacuatedEmpty
		map_faststr.go#L427: 					b.tophash[i] = evacuatedEmpty