Reapply abc5051854fd7c98c7ba6b593211e47dcbcec9e8: Remove 'Element.docRange'.

pkg/analyzer/lib/src/summary/idl.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * This file is an "idl" style description of the summary format.  It
  * contains abstract classes which declare the interface for reading data from
  * summaries.  It is parsed and transformed into code that implements the
  * summary format.
  *
@@ skipping 1656 matching lines @@
 }
 
 /**
  * Unlinked summary information about a documentation comment.
  */
 abstract class UnlinkedDocumentationComment extends base.SummaryClass {
   /**
    * Length of the documentation comment (prior to replacing '\r\n' with '\n').
    */
   @Id(0)
+  @deprecated
   int get length;
 
   /**
    * Offset of the beginning of the documentation comment relative to the
    * beginning of the file.
    */
   @Id(2)
+  @deprecated
   int get offset;
 
   /**
    * Text of the documentation comment, with '\r\n' replaced by '\n'.
    *
    * References appearing within the doc comment in square brackets are not
    * specially encoded.
    */
   @Id(1)
   String get text;
@@ skipping 1158 matching lines @@
    */
   @Id(11)
   int get visibleLength;
 
   /**
    * If a local variable, the beginning of the visible range; zero otherwise.
    */
   @Id(12)
   int get visibleOffset;
 }