Remove Compiler access from ResolutionEnqueuer

tests/compiler/dart2js/simple_inferrer_const_closure2_test.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.
 
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import 'compiler_helper.dart';
 
 const String TEST = """
 
@@ skipping 10 matching lines @@
 main() {
   returnNum(10);
   returnNum(10.5);
 }
 """;
 
 void main() {
   Uri uri = new Uri(scheme: 'source');
   var compiler = compilerFor(TEST, uri);
   asyncTest(() => compiler.run(uri).then((_) {
-        var typesInferrer = compiler.globalInference.typesInferrer;
+        var typesInferrer = compiler.globalInference.typesInferrerInternal;
 
         checkReturn(String name, type) {
           var element = findElement(compiler, name);
           Expect.equals(
               type,
               typesInferrer.getReturnTypeOfElement(element).simplify(compiler),
               name);
         }
 
-        checkReturn('method', compiler.commonMasks.numType);
-        checkReturn('returnNum', compiler.commonMasks.numType);
+        checkReturn('method', compiler.closedWorld.commonMasks.numType);
+        checkReturn('returnNum', compiler.closedWorld.commonMasks.numType);
       }));
 }