Disable serialization test when not supported

To be squashed

Author: fredericDelaporte

src/NHibernate.Test/StaticProxyTest/StaticProxyFactoryFixture.cs

@@ -37,6 +37,8 @@ public void CanCreateProxyForClassWithInternalInterface()
 		[Test]
 		public void InitializedProxyStaysInitializedAfterDeserialization()
 		{
+			TestsContext.AssumeSystemTypeIsSerializable();
+
 			var factory = new StaticProxyFactory();
 			factory.PostInstantiate(typeof(SimpleTestClass).FullName, typeof(SimpleTestClass), new HashSet<System.Type> {typeof(INHibernateProxy)}, null, null, null);
 			var proxy = factory.GetProxy(2, null);
@@ -66,6 +68,8 @@ public void InitializedProxyStaysInitializedAfterDeserialization()
 		[Test]
 		public void NonInitializedProxyStaysNonInitializedAfterSerialization()
 		{
+			TestsContext.AssumeSystemTypeIsSerializable();
+
 			var factory = new StaticProxyFactory();
 			factory.PostInstantiate(typeof(SimpleTestClass).FullName, typeof(SimpleTestClass), new HashSet<System.Type> {typeof(INHibernateProxy)}, null, null, null);
 			var proxy = factory.GetProxy(2, null);