Fixed named argument expression.

ICSharpCode.NRefactory.CSharp/Ast/Expressions/NamedArgumentExpression.cs

@@ -22,6 +22,7 @@ namespace ICSharpCode.NRefactory.CSharp
 {
 	/// <summary>
 	/// Represents a named argument passed to a method or attribute.
+	/// name: expression
 	/// </summary>
 	public class NamedArgumentExpression : Expression
 	{
@@ -53,8 +54,8 @@ namespace ICSharpCode.NRefactory.CSharp
 			}
 		}
 		
-		public CSharpTokenNode AssignToken {
+		public CSharpTokenNode ColonToken {
-			get { return GetChildByRole (Roles.Assign); }
+			get { return GetChildByRole (Roles.Colon); }
 		}
 		
 		public Expression Expression {

ICSharpCode.NRefactory.CSharp/Parser/CSharpParser.cs

@@ -210,7 +210,7 @@ namespace ICSharpCode.NRefactory.CSharp
 								
 								var argLoc = LocationsBag.GetLocations (na);
 								if (argLoc != null)
-									newArg.AddChild (new CSharpTokenNode (Convert (argLoc[0]), 1), NamedArgumentExpression.Roles.Assign);
+									newArg.AddChild (new CSharpTokenNode (Convert (argLoc[0]), 1), NamedArgumentExpression.Roles.Colon);
 								newArg.AddChild ((Expression)na.Expr.Accept (this), NamedExpression.Roles.Expression);
 								result.AddChild (newArg, Attribute.Roles.Argument);
 								continue;
@@ -2380,7 +2380,7 @@ namespace ICSharpCode.NRefactory.CSharp
 					
 					var loc = LocationsBag.GetLocations (na);
 					if (loc != null)
-						newArg.AddChild (new CSharpTokenNode (Convert (loc[0]), 1), NamedArgumentExpression.Roles.Assign);
+						newArg.AddChild (new CSharpTokenNode (Convert (loc[0]), 1), NamedArgumentExpression.Roles.Colon);
 					
 					if (arg.ArgType == Argument.AType.Out || arg.ArgType == Argument.AType.Ref) {
 						DirectionExpression direction = new DirectionExpression ();

ICSharpCode.NRefactory.CSharp/Parser/mcs/cs-parser.jay

@@ -891,6 +891,7 @@ named_argument
 			
 		var lt = (Tokenizer.LocatedToken) $1;
 		$$ = new NamedArgument (lt.Value, lt.Location, (Expression) $4, arg_mod);
+		lbag.AddLocation ($$, GetLocation($2));
 	  }
 	;