public static void SliceIntIntUpToEnd()
{
int[] a = { 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 };
Span<int> span = new Span<int>(a).Slice(4, 6);
Assert.Equal(6, span.Length);
Assert.True(Unsafe.AreSame<int>(ref a[4], ref span.DangerousGetPinnableReference()));
}