const runtime.waitReasonCoroutine

4 uses

	runtime (current package)
		coro.go#L48: 		gp = newproc1(startfv, gp, pc, true, waitReasonCoroutine)
		coro.go#L154: 		gp.waitreason = waitReasonCoroutine
		runtime2.go#L1098: 	waitReasonCoroutine                               // "coroutine"
		runtime2.go#L1139: 	waitReasonCoroutine:             "coroutine",