using System.Collections.ObjectModel;

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@4373 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/ICSharpCode.SharpDevelop.Dom/Project/Src/Interfaces/IFreezable.cs

@@ -7,6 +7,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Collections.ObjectModel;
 using System.Linq;
 
 namespace ICSharpCode.SharpDevelop.Dom
@@ -75,7 +76,7 @@ namespace ICSharpCode.SharpDevelop.Dom
 		{
 			if (list == null || list.Count == 0)
 				return EmptyList<T>.Instance;
-			list = new System.Collections.ObjectModel.ReadOnlyCollection<T>(list.ToArray());
+			list = new ReadOnlyCollection<T>(list.ToArray());
 			foreach (T item in list) {
 				item.Freeze();
 			}
@@ -87,7 +88,7 @@ namespace ICSharpCode.SharpDevelop.Dom
 			if (list == null || list.Count == 0)
 				return EmptyList<IReturnType>.Instance;
 			else
-				return new System.Collections.ObjectModel.ReadOnlyCollection<IReturnType>(list.ToArray());
+				return new ReadOnlyCollection<IReturnType>(list.ToArray());
 		}
 		
 		protected static IList<string> FreezeList(IList<string> list)
@@ -95,12 +96,12 @@ namespace ICSharpCode.SharpDevelop.Dom
 			if (list == null || list.Count == 0)
 				return EmptyList<string>.Instance;
 			else
-				return new System.Collections.ObjectModel.ReadOnlyCollection<string>(list.ToArray());
+				return new ReadOnlyCollection<string>(list.ToArray());
 		}
 	}
 	
 	static class EmptyList<T>
 	{
-		public static readonly System.Collections.ObjectModel.ReadOnlyCollection<T> Instance = new List<T>().AsReadOnly();
+		public static readonly ReadOnlyCollection<T> Instance = new ReadOnlyCollection<T>(new T[0]);
 	}
 }