Code style changes

Author: SergeiPavlov

Orm/Xtensive.Orm/Orm/Model/FieldInfo.cs

@@ -675,7 +675,7 @@ public override void Lock(bool recursive)
         column.Lock(true);
       if (associations.Count > 1) {
         var sorted = associations.Reorder();
-        associations.Clear();       // Unsubscribe to avoid memory leak
+        associations.Clear();
         associations = new NodeCollection<AssociationInfo>(associations.Owner, associations.Name);
         associations.AddRange(sorted);
       }

Orm/Xtensive.Orm/Orm/Model/IndexInfo.cs

@@ -285,15 +285,6 @@ public bool IsClustered
       get => (attributes & IndexAttributes.Clustered) > 0;
     }
 
-    /// <summary>
-    /// Unsubscribe ColumnInfoCollections from FieldInfo events to avoid memory leak
-    /// </summary>
-    public void Dispose()
-    {
-      IncludedColumns.Clear();
-      ValueColumns.Clear();
-    }
-
     /// <inheritdoc/>
     public override void UpdateState()
     {
@@ -405,24 +396,6 @@ public IndexInfo(TypeInfo reflectedType, IndexAttributes indexAttributes, IndexI
       shortName = ancestorIndex.ShortName;
     }
 
-    /// <summary>
-    /// Used for cloning only
-    /// </summary>
-    private IndexInfo(IndexInfo original)
-    {
-      shortName = original.shortName;
-      Name = original.Name;
-      KeyColumns = original.KeyColumns;
-      IncludedColumns = original.IncludedColumns;
-      ValueColumns = original.ValueColumns;
-      ReflectedType = original.ReflectedType;
-      attributes = original.attributes;
-      DeclaringType = original.DeclaringIndex.DeclaringType;
-      fillFactor = original.DeclaringIndex.FillFactor;
-      filterExpression = original.DeclaringIndex.FilterExpression;
-      DeclaringIndex = original.DeclaringIndex.DeclaringIndex;
-    }
-
     /// <summary>
     /// Initializes a new instance of this class.
     /// </summary>
@@ -447,5 +420,30 @@ public IndexInfo(TypeInfo reflectedType, IndexAttributes indexAttributes, IndexI
       foreach (IndexInfo info in baseIndexes)
         UnderlyingIndexes.Add(info);
     }
+
+    /// <summary>
+    /// Used for cloning only.
+    /// </summary>
+    private IndexInfo(IndexInfo original)
+    {
+      Name = original.Name;
+      attributes = original.attributes;
+      shortName = original.shortName;
+      fillFactor = original.DeclaringIndex.FillFactor;
+      filterExpression = original.DeclaringIndex.FilterExpression;
+      KeyColumns = original.KeyColumns;
+      IncludedColumns = original.IncludedColumns;
+      ValueColumns = original.ValueColumns;
+      ReflectedType = original.ReflectedType;
+      DeclaringType = original.DeclaringIndex.DeclaringType;
+      DeclaringIndex = original.DeclaringIndex.DeclaringIndex;
+    }
+
+    /// Unsubscribe ColumnInfoCollections from FieldInfo events to avoid memory leak.
+    public void Dispose()
+    {
+      IncludedColumns.Clear();
+      ValueColumns.Clear();
+    }
   }
 }