const runtime.throwTypeNone

3 uses

	runtime (current package)
		panic.go#L22: 	throwTypeNone throwType = iota
		panic.go#L1270: 	if gp.m.throwing == throwTypeNone {
		panic.go#L1464: 	if mp.locks != 1 || mp.mallocing != 0 || mp.throwing != throwTypeNone || mp.preemptoff != "" || mp.dying != 0 {