diff --git a/PascalABCNET.axml b/PascalABCNET.axml
index 698d5766e..80b604808 100644
--- a/PascalABCNET.axml
+++ b/PascalABCNET.axml
@@ -413,12 +413,12 @@
       </Node>
       <Node Name="Реализуем тип (integer,integer)" NL="0" NG="0">
         <Items>
-          <Node Name="void visit(enum_type_definition" NL="0" NG="0">
+          <Node Name="void visit(enum_type_definition" NL="0,9619141" NG="-1">
             <FileName>\treeconverter\treeconversion\syntax_tree_visitor.cs</FileName>
             <Text>public override void visit(SyntaxTree.enum_type_definition _enum_type_definition)</Text>
             <OCtx>
               <i Type="Method">public override void visit ( SyntaxTree . enum_type_definition _enum_type_definition )</i>
-              <i Type="ClassOrNamespace">public class syntax_tree_visitor : SyntaxTree . AbstractVisitor</i>
+              <i Type="ClassOrNamespace">public partial class syntax_tree_visitor : SyntaxTree . WalkingVisitorNew</i>
               <i Type="ClassOrNamespace">namespace PascalABCCompiler . TreeConverter</i>
               <i Type="CS_TreeNode">
               </i>
diff --git a/TreeConverter/TreeConversion/syntax_tree_visitor.cs b/TreeConverter/TreeConversion/syntax_tree_visitor.cs
index 4a365994c..aba1a6d39 100644
--- a/TreeConverter/TreeConversion/syntax_tree_visitor.cs
+++ b/TreeConverter/TreeConversion/syntax_tree_visitor.cs
@@ -19227,8 +19227,9 @@ namespace PascalABCCompiler.TreeConverter
 
         public override void visit(SyntaxTree.slice_expr sl)
         {
-            //AddError(get_location(sl), "SUGARED_NODE_{0}_IN_SYNTAX_TREE_VISITOR", sl.GetType().Name);
+            AddError(get_location(sl), "SUGARED_NODE_{0}_IN_SYNTAX_TREE_VISITOR", sl.GetType().Name);
             
+            /*
             // Преобразуется в вызов a.SystemSlice(situation,from,to,step)
             // Тип a должен быть array of T, List<T> или string
             semcheck(sl);
@@ -19237,13 +19238,13 @@ namespace PascalABCCompiler.TreeConverter
             var el = construct_expression_list_for_slice_expr(sl); 
             var mc = new method_call(new dot_node(sl.v, new ident("SystemSlice", sl.v.source_context), sl.v.source_context), el, sl.source_context);
 
-            visit(mc);
+            visit(mc);*/
         }
 
         public override void visit(SyntaxTree.slice_expr_question sl)
         {
-            //AddError(get_location(sl), "SUGARED_NODE_{0}_IN_SYNTAX_TREE_VISITOR", sl.GetType().Name);
-
+            AddError(get_location(sl), "SUGARED_NODE_{0}_IN_SYNTAX_TREE_VISITOR", sl.GetType().Name);
+            /*
             // Преобразуется в вызов a.SystemSlice(situation,from,to,step)
             // Тип a должен быть array of T, List<T> или string
             semcheck(sl);
@@ -19251,7 +19252,7 @@ namespace PascalABCCompiler.TreeConverter
             var el = construct_expression_list_for_slice_expr(sl);
             var mc = new method_call(new dot_node(sl.v, new ident("SystemSliceQuestion", sl.v.source_context), sl.v.source_context), el, sl.source_context);
 
-            visit(mc);
+            visit(mc);*/
         }
 
         // frninja 04/03/16 - для yield
diff --git a/TreeConverter/TreeConversion/syntax_tree_visitor_semcheck_helper.cs b/TreeConverter/TreeConversion/syntax_tree_visitor_semcheck_helper.cs
deleted file mode 100644
index 10d39bcb3..000000000
--- a/TreeConverter/TreeConversion/syntax_tree_visitor_semcheck_helper.cs
+++ /dev/null
@@ -1,61 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using PascalABCCompiler.SyntaxTree;
-using PascalABCCompiler.TreeRealization;
-
-namespace PascalABCCompiler.TreeConverter
-{
-    public partial class syntax_tree_visitor
-    {
-        void semcheck_slice_expr_helper(SyntaxTree.slice_expr sl)
-        {
-            var semvar = convert_strong(sl.v);
-            if (semvar is typed_expression)
-                semvar = convert_typed_expression_to_function_call(semvar as typed_expression);
-
-            var t = ConvertSemanticTypeNodeToNETType(semvar.type);
-
-            var IsSlicedType = 0; // проверим, является ли semvar.type динамическим массивом, списком List или строкой
-            // semvar.type должен быть array of T, List<T> или string
-            if (t == null)
-                IsSlicedType = 0; // можно ничего не присваивать :)
-            else if (t.IsArray)
-                IsSlicedType = 1;
-            else if (t == typeof(System.String))
-                IsSlicedType = 2;
-            else if (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(System.Collections.Generic.List<>))
-                IsSlicedType = 3;
-
-            if (IsSlicedType == 0)
-                AddError(get_location(sl.v), "BAD_SLICE_OBJECT");
-
-            var semfrom = convert_strong(sl.from);
-            var b = convertion_data_and_alghoritms.can_convert_type(semfrom, SystemLibrary.SystemLibrary.integer_type);
-            if (!b)
-                AddError(get_location(sl.from), "INTEGER_VALUE_EXPECTED");
-
-            var semto = convert_strong(sl.to);
-            b = convertion_data_and_alghoritms.can_convert_type(semto, SystemLibrary.SystemLibrary.integer_type);
-            if (!b)
-                AddError(get_location(sl.to), "INTEGER_VALUE_EXPECTED");
-
-            if (sl.step != null)
-            {
-                var semstep = convert_strong(sl.step);
-                b = convertion_data_and_alghoritms.can_convert_type(semstep, SystemLibrary.SystemLibrary.integer_type);
-                if (!b)
-                    AddError(get_location(sl.step), "INTEGER_VALUE_EXPECTED");
-            }
-        }
-        public void semcheck(SyntaxTree.slice_expr sl)
-        {
-            semcheck_slice_expr_helper(sl);
-        }
-        public void semcheck(SyntaxTree.slice_expr_question sl)
-        {
-            semcheck_slice_expr_helper(sl);
-        }
-    }
-}
diff --git a/bin/Lib/PABCRtl.dll b/bin/Lib/PABCRtl.dll
index e42bc21dd..13c4989f6 100644
Binary files a/bin/Lib/PABCRtl.dll and b/bin/Lib/PABCRtl.dll differ