const runtime/internal/sys.GoosPlan9

3 uses

	runtime/internal/sys (current package)
		zgoos_darwin.go#L23: const GoosPlan9 = 0

	runtime
		malloc.go#L153: 	_NumStackOrders = 4 - sys.PtrSize/4*sys.GoosWindows - 1*sys.GoosPlan9
		stack.go#L69: 	_StackSystem = sys.GoosWindows*512*sys.PtrSize + sys.GoosPlan9*512 + sys.GoosIos*sys.GoarchArm64*1024