Move getElementAt() to CompilationUnitElement.

pkg/analyzer/lib/src/generated/element_handle.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.element_handle;
 
 import 'ast.dart';
@@ skipping 201 matching lines @@
   @override
   String get uri => actualElement.uri;
 
   @override
   int get uriEnd => actualElement.uriEnd;
 
   @override
   int get uriOffset => actualElement.uriOffset;
 
   @override
+  Element getElementAt(int offset) {
+    return actualElement.getElementAt(offset);
+  }
+
+  @override
   ClassElement getEnum(String enumName) => actualElement.getEnum(enumName);
 
   @override
   ClassElement getType(String className) => actualElement.getType(className);
 }
 
 /**
  * Instances of the class `ConstructorElementHandle` implement a handle to a
  * `ConstructorElement`.
  */
@@ skipping 564 matching lines @@
   @override
   Namespace get publicNamespace => actualElement.publicNamespace;
 
   @override
   List<CompilationUnitElement> get units => actualElement.units;
 
   @override
   List<LibraryElement> get visibleLibraries => actualElement.visibleLibraries;
 
   @override
-  Element getElementAt(int offset) => actualElement.getElementAt(offset);
-
-  @override
   List<ImportElement> getImportsWithPrefix(PrefixElement prefixElement) =>
       actualElement.getImportsWithPrefix(prefixElement);
 
   @override
   ClassElement getType(String className) => actualElement.getType(className);
 
   @override
   bool isUpToDate(int timeStamp) => actualElement.isUpToDate(timeStamp);
 }
 
@@ skipping 270 matching lines @@
   DartType get type => actualElement.type;
 }
 /**
  * TODO(scheglov) invalid implementation
  */
 class WeakReference<T> {
   final T value;
   WeakReference(this.value);
   T get() => value;
 }