Fixed forum-8965: "+=" code completion for events did not work if delegate was declared in source code.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@3793 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/Gui/Pads/ProjectBrowser/TreeNodes/FileNode.cs

@@ -6,6 +6,7 @@
 // </file>
 
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Windows.Forms;
@@ -328,16 +329,9 @@ namespace ICSharpCode.SharpDevelop.Project
 		/// </summary>
 		void DeleteChildNodes()
 		{
-			if (Nodes.Count == 0) return;
-			
-			foreach (TreeNode node in Nodes) {
-				FileNode fileNode = node as FileNode;
-				if (fileNode != null) {
+			foreach (FileNode fileNode in Nodes.OfType<FileNode>().ToList()) {
 				fileNode.DeleteChildNodes(); // delete recursively
 				FileService.RemoveFile(fileNode.FileName, false);
-				} else {
-					LoggingService.Warn("FileNode.DeleteChildren. Child is not a FileNode.");
-				}
 			}
 		}
 	}

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

@@ -15,6 +15,7 @@ namespace ICSharpCode.SharpDevelop.Dom
 		public readonly IReturnType Void;
 		public readonly IReturnType Object;
 		public readonly IReturnType Delegate;
+		public readonly IReturnType MulticastDelegate;
 		public readonly IReturnType ValueType;
 		public readonly IReturnType Enum;
 		
@@ -39,6 +40,7 @@ namespace ICSharpCode.SharpDevelop.Dom
 			Void      = new VoidReturnType(pc);
 			Object    = CreateFromName("System.Object");
 			Delegate  = CreateFromName("System.Delegate");
+			MulticastDelegate = CreateFromName("System.MulticastDelegate");
 			ValueType = CreateFromName("System.ValueType");
 			Enum      = CreateFromName("System.Enum");
 			
@@ -53,7 +55,7 @@ namespace ICSharpCode.SharpDevelop.Dom
 			Exception     = CreateFromName("System.Exception");
 			AsyncCallback = CreateFromName("System.AsyncCallback");
 			IAsyncResult  = CreateFromName("System.IAsyncResult");
-			IAsyncResult  = CreateFromName("System.IDisposable");
+			IDisposable = CreateFromName("System.IDisposable");
 		}
 		
 		IReturnType CreateFromName(string name)

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/NRefactoryResolver/NRefactoryASTConvertVisitor.cs

@@ -472,7 +472,7 @@ namespace ICSharpCode.SharpDevelop.Dom.NRefactoryResolver
 		
 		void CreateDelegate(DefaultClass c, string name, AST.TypeReference returnType, IList<AST.TemplateDefinition> templates, IList<AST.ParameterDeclarationExpression> parameters)
 		{
-			c.BaseTypes.Add(c.ProjectContent.SystemTypes.Delegate);
+			c.BaseTypes.Add(c.ProjectContent.SystemTypes.MulticastDelegate);
 			if (currentClass.Count > 0) {
 				DefaultClass cur = GetCurrentClass();
 				cur.InnerClasses.Add(c);