Revert "Remove 'Element.docRange'."

pkg/analyzer/lib/src/summary/format.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 has been automatically generated.  Please do not edit it manually.
 // To regenerate the file, use the script "pkg/analyzer/tool/generate_files".
 
 library analyzer.src.summary.format;
 
 import 'flat_buffers.dart' as fb;
@@ skipping 4777 matching lines @@
     "expression": expression,
     "kind": kind,
     "name": name,
   };
 
   @override
   String toString() => convert.JSON.encode(toJson());
 }
 
 class UnlinkedDocumentationCommentBuilder extends Object with _UnlinkedDocumentationCommentMixin implements idl.UnlinkedDocumentationComment {
+  int _length;
+  int _offset;
   String _text;
 
   @override
-  int get length => throw new UnimplementedError('attempt to access deprecated field');
+  int get length => _length ??= 0;
+
+  /**
+   * Length of the documentation comment (prior to replacing '\r\n' with '\n').
+   */
+  void set length(int _value) {
+    assert(_value == null || _value >= 0);
+    _length = _value;
+  }
 
   @override
-  int get offset => throw new UnimplementedError('attempt to access deprecated field');
+  int get offset => _offset ??= 0;
+
+  /**
+   * Offset of the beginning of the documentation comment relative to the
+   * beginning of the file.
+   */
+  void set offset(int _value) {
+    assert(_value == null || _value >= 0);
+    _offset = _value;
+  }
 
   @override
   String get text => _text ??= '';
 
   /**
    * Text of the documentation comment, with '\r\n' replaced by '\n'.
    *
    * References appearing within the doc comment in square brackets are not
    * specially encoded.
    */
   void set text(String _value) {
     _text = _value;
   }
 
-  UnlinkedDocumentationCommentBuilder({String text})
-    : _text = text;
+  UnlinkedDocumentationCommentBuilder({int length, int offset, String text})
+    : _length = length,
+      _offset = offset,
+      _text = text;
 
   /**
    * Flush [informative] data recursively.
    */
   void flushInformative() {
   }
 
   /**
    * Accumulate non-[informative] data into [signature].
    */
   void collectApiSignature(api_sig.ApiSignature signature) {
+    signature.addInt(this._length ?? 0);
     signature.addString(this._text ?? '');
+    signature.addInt(this._offset ?? 0);
   }
 
   fb.Offset finish(fb.Builder fbBuilder) {
     fb.Offset offset_text;
     if (_text != null) {
       offset_text = fbBuilder.writeString(_text);
     }
     fbBuilder.startTable();
+    if (_length != null && _length != 0) {
+      fbBuilder.addUint32(0, _length);
+    }
+    if (_offset != null && _offset != 0) {
+      fbBuilder.addUint32(2, _offset);
+    }
     if (offset_text != null) {
       fbBuilder.addOffset(1, offset_text);
     }
     return fbBuilder.endTable();
   }
 }
 
 class _UnlinkedDocumentationCommentReader extends fb.TableReader<_UnlinkedDocumentationCommentImpl> {
   const _UnlinkedDocumentationCommentReader();
 
   @override
   _UnlinkedDocumentationCommentImpl createObject(fb.BufferContext bc, int offset) => new _UnlinkedDocumentationCommentImpl(bc, offset);
 }
 
 class _UnlinkedDocumentationCommentImpl extends Object with _UnlinkedDocumentationCommentMixin implements idl.UnlinkedDocumentationComment {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
   _UnlinkedDocumentationCommentImpl(this._bc, this._bcOffset);
 
+  int _length;
+  int _offset;
   String _text;
 
   @override
-  int get length => throw new UnimplementedError('attempt to access deprecated field');
+  int get length {
+    _length ??= const fb.Uint32Reader().vTableGet(_bc, _bcOffset, 0, 0);
+    return _length;
+  }
 
   @override
-  int get offset => throw new UnimplementedError('attempt to access deprecated field');
+  int get offset {
+    _offset ??= const fb.Uint32Reader().vTableGet(_bc, _bcOffset, 2, 0);
+    return _offset;
+  }
 
   @override
   String get text {
     _text ??= const fb.StringReader().vTableGet(_bc, _bcOffset, 1, '');
     return _text;
   }
 }
 
 abstract class _UnlinkedDocumentationCommentMixin implements idl.UnlinkedDocumentationComment {
   @override
   Map<String, Object> toJson() {
     Map<String, Object> _result = <String, Object>{};
+    if (length != 0) _result["length"] = length;
+    if (offset != 0) _result["offset"] = offset;
     if (text != '') _result["text"] = text;
     return _result;
   }
 
   @override
   Map<String, Object> toMap() => {
+    "length": length,
+    "offset": offset,
     "text": text,
   };
 
   @override
   String toString() => convert.JSON.encode(toJson());
 }
 
 class UnlinkedEnumBuilder extends Object with _UnlinkedEnumMixin implements idl.UnlinkedEnum {
   List<UnlinkedConstBuilder> _annotations;
   CodeRangeBuilder _codeRange;
@@ skipping 4815 matching lines @@
     "propagatedTypeSlot": propagatedTypeSlot,
     "type": type,
     "visibleLength": visibleLength,
     "visibleOffset": visibleOffset,
   };
 
   @override
   String toString() => convert.JSON.encode(toJson());
 }