public void InsertClass()
        {
            ICompilationUnit cu = ParseCSharp(null, "class TopLevelClass {}");

            Assert.AreEqual(1, pc.Classes.Count);
            Assert.AreEqual(1, pc.NamespaceNames.Count);
            AssertSequenceSame(cu.Classes, pc.Classes);
            AssertSequenceSame(cu.Classes, pc.GetNamespaceContents(""));
        }