Add test for static classes

Author: ds5678

Cpp2IL.Core.Tests/TypeAnalysisContextTests.cs

@@ -25,4 +25,28 @@ public void InterfacesHaveNoBaseType()
             Assert.That(count, Is.GreaterThan(0));
         }
     }
+
+    [Test]
+    public void StaticClassesHaveObjectBaseType()
+    {
+        var appContext = TestGameLoader.LoadSimple2019Game();
+
+        using (Assert.EnterMultipleScope())
+        {
+            var count = 0;
+            foreach (var assembly in appContext.Assemblies)
+            {
+                foreach (var type in assembly.Types)
+                {
+                    if (!type.IsStatic)
+                        continue;
+
+                    Assert.That(type.DefaultBaseType, Is.EqualTo(appContext.SystemTypes.SystemObjectType));
+                    Assert.That(type.BaseType, Is.EqualTo(appContext.SystemTypes.SystemObjectType));
+                    count++;
+                }
+            }
+            Assert.That(count, Is.GreaterThan(0));
+        }
+    }
 }