Remove ArrayUtils

pkg/analysis_server/lib/src/services/generated/completion.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 services.completion;
 
 import 'dart:collection';
@@ skipping 1896 matching lines @@
     _mergeNames(execElement.functions);
   }
 
   void _addNamesDefinedByHierarchy(ClassElement classElement, bool forSuper) {
     _addNamesDefinedByHierarchy2(classElement.type, forSuper);
   }
 
   void _addNamesDefinedByHierarchy2(InterfaceType type, bool forSuper) {
     List<InterfaceType> superTypes = type.element.allSupertypes;
     if (!forSuper) {
-      superTypes = ArrayUtils.addAt(superTypes, 0, type);
+      superTypes.insert(0, type);
     }
     _addNamesDefinedByTypes(superTypes);
     // Collect names defined by subtypes separately so they can be identified later.
     CompletionEngine_NameCollector potentialMatchCollector = CompletionEngine_this._createNameCollector();
     if (!type.isObject) {
       potentialMatchCollector._addNamesDefinedByTypes(CompletionEngine_this._allSubtypes(type.element));
     }
     _potentialMatches = new Set<Element>();
     for (List<Element> matches in potentialMatchCollector._uniqueNames.values) {
       for (Element match in matches) {
@@ skipping 1768 matching lines @@
 
 class TopLevelNamesKind extends Enum<TopLevelNamesKind> {
   static const TopLevelNamesKind DECLARED_AND_IMPORTS = const TopLevelNamesKind('DECLARED_AND_IMPORTS', 0);
 
   static const TopLevelNamesKind DECLARED_AND_EXPORTS = const TopLevelNamesKind('DECLARED_AND_EXPORTS', 1);
 
   static const List<TopLevelNamesKind> values = const [DECLARED_AND_IMPORTS, DECLARED_AND_EXPORTS];
 
   const TopLevelNamesKind(String name, int ordinal) : super(name, ordinal);
 }