linux-packaging-mono/mcs/class/System.Xaml/Test/XmlFiles/NonPrimitive.xml

<TestClass3 Nested="{x:Null}" xmlns="clr-namespace:MonoTests.System.Xaml;assembly=System.Xaml_test_net_4_0" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" />