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

pkg/analyzer/lib/src/generated/constant.dart

 // Copyright (c) 2014, 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 code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.constant;
 
 import 'dart:collection';
@@ skipping 1456 matching lines @@
         }
         return new DartObjectImpl(functionType, new FunctionState(function));
       }
     } else if (element is ClassElement || element is FunctionTypeAliasElement) {
       return new DartObjectImpl(_typeProvider.typeType, new TypeState(element));
     }
     // TODO(brianwilkerson) Figure out which error to report.
     _error(node, null);
     return null;
   }
-
-  /**
-   * Return `true` if the given element represents the 'length' getter in class 'String'.
-   *
-   * @param element the element being tested.
-   * @return
-   */
-  bool _isStringLength(Element element) {
-    if (element is! PropertyAccessorElement) {
-      return false;
-    }
-    PropertyAccessorElement accessor = element as PropertyAccessorElement;
-    if (!accessor.isGetter || accessor.name != "length") {
-      return false;
-    }
-    Element parent = accessor.enclosingElement;
-    return parent == _typeProvider.stringType.element;
-  }
 }
 
 /**
  * The interface `DartObject` defines the behavior of objects that represent the state of a
  * Dart object.
  */
 abstract class DartObject {
   /**
    * Return the boolean value of this object, or `null` if either the value of this object is
    * not known or this object is not of type 'bool'.
@@ skipping 3293 matching lines @@
 
   @override
   String get typeName => "Type";
 
   @override
   int get hashCode => _element == null ? 0 : _element.hashCode;
 
   @override
   String toString() => _element == null ? "-unknown-" : _element.name;
 }