Fix ArgumentNullException when accessing DefaultClass.AllMembers before members initialized.

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/Implementations/DefaultClass.cs

@@ -646,10 +646,10 @@ namespace ICSharpCode.SharpDevelop.Dom
 		
 		public IEnumerable<IMember> AllMembers {
 			get {
-				IEnumerable<IMember> p = properties;
+				IEnumerable<IMember> p = Properties;
-				return p.Concat(methods)
+				return p.Concat(Methods)
-					.Concat(fields)
+					.Concat(Fields)
-					.Concat(events);
+					.Concat(Events);
 			}
 		}
 		

src/Main/ICSharpCode.SharpDevelop.Dom/Tests/ICSharpCode.SharpDevelop.Dom.Tests/DefaultClassTests.cs

@@ -0,0 +1,33 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+using System.Linq;
+using NUnit.Framework;
+
+namespace ICSharpCode.SharpDevelop.Dom.Tests
+{
+	[TestFixture]
+	public class DefaultClassTests
+	{
+		DefaultClass defaultClass;
+		DefaultCompilationUnit compilationUnit;
+		DefaultProjectContent projectContent;
+		
+		void CreateDefaultClass(string fullyQualifiedName)
+		{
+			projectContent = new DefaultProjectContent();
+			compilationUnit = new DefaultCompilationUnit(projectContent);
+			defaultClass = new DefaultClass(compilationUnit, fullyQualifiedName);
+		}
+		
+		[Test]
+		public void AllMembers_PropertiesFieldsMethodsEventsAreAllNull_ReturnsNoItemsWithoutThrowingNullException()
+		{
+			CreateDefaultClass("TestClass");
+			int count = defaultClass.AllMembers.Count();
+			
+			Assert.AreEqual(0, count);
+		}
+	}
+}

src/Main/ICSharpCode.SharpDevelop.Dom/Tests/ICSharpCode.SharpDevelop.Dom.Tests/ICSharpCode.SharpDevelop.Dom.Tests.csproj

@@ -51,6 +51,7 @@
     <Compile Include="ClassInheritanceTreeTests.cs" />
     <Compile Include="CodeSnippetConverterTests.cs" />
     <Compile Include="CSharpAmbienceTests.cs" />
+    <Compile Include="DefaultClassTests.cs" />
     <Compile Include="ImplementInterfaceTests.cs" />
     <Compile Include="IndexBeforeTextFinderTests.cs" />
     <Compile Include="NRefactoryAstConverterTests.cs" />