When there are duplicate classes, treat both parts as implicitly partial. Fixes SD2-1217: Duplicate class name support in ProjectContent.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@2688 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/Boo/BooBinding/Test/BooBinding.Tests.csproj

@@ -46,6 +46,8 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Class1.cs" />
+    <Compile Include="MyNewClass.cs" />
     <Compile Include="ResolverTests.cs" />
   </ItemGroup>
   <ItemGroup>

src/AddIns/BackendBindings/Boo/BooBinding/Test/Class1.cs

@@ -0,0 +1,21 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <author name="Daniel Grunwald"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+
+namespace Grunwald.BooBinding.Tests
+{
+	/// <summary>
+	/// Description of Class1.
+	/// </summary>
+	public class Class1
+	{
+		public Class1()
+		{
+		}
+	}
+}

src/AddIns/BackendBindings/Boo/BooBinding/Test/MyNewClass.cs

@@ -0,0 +1,21 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <author name="Daniel Grunwald"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+
+namespace Grunwald.BooBinding.Tests
+{
+	/// <summary>
+	/// Description of MyNewClass.
+	/// </summary>
+	public class MyNewClass
+	{
+		public MyNewClass()
+		{
+		}
+	}
+}

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/ProjectContent/DefaultProjectContent.cs

@@ -342,7 +342,15 @@ namespace ICSharpCode.SharpDevelop.Dom
 					}
 					//LoggingService.Debug("Added new part!");
 					return;
-				} else if (addClass.IsPartial || language.ImplicitPartialClasses) {
+				} else {
+					
+					if (addClass.IsPartial || language.ImplicitPartialClasses) {
+						LoggingService.Info("Duplicate class " + fullyQualifiedName);
+					}
+					
+					// Instead of overwriting a class with another, treat both parts as partial.
+					// This fixes SD2-1217.
+					
 					// Merge existing non-partial class with addClass
 					
 					// Ensure partial modifier is set everywhere: