fixup! Add support for querying dynamic objects with Linq

Author: hazzik

src/NHibernate/Linq/Visitors/HqlGeneratorExpressionVisitor.cs

@@ -151,7 +151,7 @@ private HqlTreeNode VisitDynamicExpression(DynamicExpression expression)
 			{
 				case GetMemberBinder binder:
 					return _hqlTreeBuilder.Dot(
-						VisitExpression(expression.Arguments[1]).AsExpression(),
+						VisitExpression(expression.Arguments[0]).AsExpression(),
 						_hqlTreeBuilder.Ident(binder.Name));
 			}