Fixed bug in constraints parsing.

ICSharpCode.NRefactory.CSharp/Ast/SimpleType.cs

@@ -42,6 +42,11 @@ namespace ICSharpCode.NRefactory.CSharp
 			this.Identifier = identifier;
 		}
 		
+		public SimpleType (Identifier identifier)
+		{
+			this.IdentifierToken = identifier;
+		}
+		
 		public SimpleType(string identifier, TextLocation location)
 		{
 			SetChildByRole (Roles.Identifier, CSharp.Identifier.Create (identifier, location));

ICSharpCode.NRefactory.CSharp/Parser/CSharpParser.cs

@@ -2414,7 +2414,7 @@ namespace ICSharpCode.NRefactory.CSharp
 					var location = LocationsBag.GetLocations (c);
 					var constraint = new Constraint ();
 					constraint.AddChild (new CSharpTokenNode (Convert (c.Location), "where".Length), InvocationExpression.Roles.Keyword);
-					constraint.AddChild (Identifier.Create (c.TypeParameter.Value, Convert (c.TypeParameter.Location)), InvocationExpression.Roles.Identifier);
+					constraint.AddChild (new SimpleType (Identifier.Create (c.TypeParameter.Value, Convert (c.TypeParameter.Location))), Constraint.BaseTypeRole);
 					if (location != null)
 						constraint.AddChild (new CSharpTokenNode (Convert (location [0]), 1), Constraint.ColonRole);
 					var commaLocs = LocationsBag.GetLocations (c.ConstraintExpressions);