Update Orm/Xtensive.Orm/Orm/Model/TypeInfoCollection.cs

Co-authored-by: Alexey Kulakov <alexey.kulakov@dataobjects.net>

Author: SergeiPavlov

Orm/Xtensive.Orm/Orm/Model/TypeInfoCollection.cs

@@ -248,8 +248,8 @@ public IEnumerable<TypeInfo> FindImplementors(TypeInfo item, bool recursive) =>
     /// <param name="item">The type to search root for.</param>
     /// <returns><see cref="TypeInfo"/> instance that is root of specified <paramref name="item"/>.</returns>
     /// <exception cref="ArgumentNullException">When <paramref name="item"/> is <see langword="null"/>.</exception>
-    [Obsolete("Use TypeInfo.GetRoot()")]
-    public TypeInfo FindRoot(TypeInfo item) => item.GetRoot();
+    [Obsolete("Use TypeInfo.Root")]
+    public TypeInfo FindRoot(TypeInfo item) => item.Root;
 
     /// <summary>
     /// Finds the ancestor of the specified <paramref name="type"/>.