Added an option to turn off the aliases in the type system ast

builder.

ICSharpCode.NRefactory.CSharp/Refactoring/TypeSystemAstBuilder.cs

@@ -55,6 +55,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 			this.ShowTypeParameterConstraints = true;
 			this.ShowParameterNames = true;
 			this.ShowConstantValues = true;
+			this.UseAliases = true;
 		}
 		
 		/// <summary>
@@ -129,6 +130,12 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 		/// The default value is <c>false</c>.
 		/// </summary>
 		public bool ConvertUnboundTypeArguments { get; set;}
+
+		/// <summary>
+		/// Controls if aliases should be used inside the type name or not.
+		/// The default value is <c>true</c>.
+		/// </summary>
+		public bool UseAliases { get; set;}
 		#endregion
 		
 		#region Convert Type
@@ -218,6 +225,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 			
 			if (resolver != null) {
 				// Look if there's an alias to the target type
+				if (UseAliases) {
 					for (ResolvedUsingScope usingScope = resolver.CurrentUsingScope; usingScope != null; usingScope = usingScope.Parent) {
 						foreach (var pair in usingScope.UsingAliases) {
 							if (pair.Value is TypeResolveResult) {
@@ -226,6 +234,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 							}
 						}
 					}
+				}
 				
 				IList<IType> localTypeArguments;
 				if (typeDef.TypeParameterCount > outerTypeParameterCount) {
@@ -318,6 +327,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 		{
 			if (resolver != null) {
 				// Look if there's an alias to the target namespace
+				if (UseAliases) {
 					for (ResolvedUsingScope usingScope = resolver.CurrentUsingScope; usingScope != null; usingScope = usingScope.Parent) {
 						foreach (var pair in usingScope.UsingAliases) {
 							NamespaceResolveResult nrr = pair.Value as NamespaceResolveResult;
@@ -326,6 +336,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 						}
 					}
 				}
+			}
 			
 			int pos = ns.LastIndexOf('.');
 			if (pos < 0) {