Remove some (but not all) unused methods in analyzer.

pkg/analyzer/lib/src/error.dart

 // Copyright (c) 2013, 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.
 library error;
 
 import 'dart:collection';
 
 import 'generated/error.dart';
-import 'generated/source.dart';
 
 /// The maximum line length when printing extracted source code when converting
 /// an [AnalyzerError] to a string.
 final _MAX_ERROR_LINE_LENGTH = 120;
 
 /// An error class that collects multiple [AnalyzerError]s that are emitted
 /// during a single analysis.
 class AnalyzerErrorGroup implements Exception {
   /// The errors in this collection.
   List<AnalyzerError> get errors =>
@@ skipping 67 matching lines @@
 //
 //    for (var i = 0; i < errorColumn; i++) builder.write(" ");
 //    for (var i = 0; i < errorLength; i++) builder.write("^");
     builder.writeln();
 
     return builder.toString();
   }
 }
 
 // A content receiver that collects all the content into a string.
-class _ContentReceiver implements Source_ContentReceiver {
-  final _buffer = new StringBuffer();
-
-  String get result => _buffer.toString();
-
-  void accept(String contents, _) =>
-    _buffer.write(contents.substring(0, contents.length));
-}
+//class _ContentReceiver implements Source_ContentReceiver {

[Brian Wilkerson, 2014/11/13 16:51:56]

We should be able to safely delete this class (not just comment it out).

[scheglov, 2014/11/13 17:07:10]

Done.

+//  final _buffer = new StringBuffer();
+//
+//  String get result => _buffer.toString();
+//
+//  void accept(String contents, _) =>
+//    _buffer.write(contents.substring(0, contents.length));
+//}