Remove CodegenEnqueuer.compiler

pkg/compiler/lib/src/enqueue.dart

 // Copyright (c) 2012, 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 dart2js.enqueue;
 
 import 'dart:collection' show Queue;
 
 import 'cache_strategy.dart';
 import 'common/backend_api.dart' show Backend;
@@ skipping 117 matching lines @@
 
   final CompilerTask task;
   final String name;
   final Resolution _resolution;
   final CompilerOptions _options;
   final Backend backend;
   final GlobalDependencyRegistry _globalDependencies;
   final native.NativeEnqueuer nativeEnqueuer;
 
   final EnqueuerStrategy strategy;
-  Set<ClassEntity> _recentClasses = new Setlet<ClassEntity>();
+  final Set<ClassEntity> _recentClasses = new Setlet<ClassEntity>();
   final ResolutionWorldBuilderImpl _universe;
 
   bool queueIsClosed = false;
 
   WorldImpactVisitor _impactVisitor;
 
   /// All declaration elements that have been processed by the resolver.
   final Set<Entity> _processedElements = new Set<Entity>();
 
   final Queue<WorkItem> _queue = new Queue<WorkItem>();
@@ skipping 151 matching lines @@
         break;
       case TypeUseKind.TYPE_LITERAL:
         if (type.isTypedef) {
           universe.openWorld.registerTypedef(type.element);
         }
         break;
     }
   }
 
   void _registerIsCheck(DartType type) {
-    type = _universe.registerIsCheck(type, _resolution);
+    type = _universe.registerIsCheck(type);
     // Even in checked mode, type annotations for return type and argument
     // types do not imply type checks, so there should never be a check
     // against the type variable of a typedef.
     assert(!type.isTypeVariable || !type.element.enclosingElement.isTypedef);
   }
 
   void _registerClosurizedMember(MemberElement element) {
     assert(element.isInstanceMember);
     if (element.type.containsTypeVariables) {
       applyImpact(backend.registerClosureWithFreeTypeVariables(element,
@@ skipping 203 matching lines @@
 }
 
 typedef void _DeferredActionFunction();
 
 class _DeferredAction {
   final Element element;
   final _DeferredActionFunction action;
 
   _DeferredAction(this.element, this.action);
 }