Remove Compiler access from ResolutionEnqueuer

tests/compiler/dart2js/type_inference6_test.dart

 // Copyright (c) 2011, 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:async_helper/async_helper.dart";
 import "package:expect/expect.dart";
 import 'compiler_helper.dart';
 import 'type_mask_test_helper.dart';
 
 import 'dart:async';
 
 const String TEST = r"""
 foo() {
   var a = [1, 2, 3];
   return a.first;
 }
 
 main() {
   foo();
 }
 """;
 
 Future runTest() {
   Uri uri = new Uri(scheme: 'source');
   var compiler = compilerFor(TEST, uri);
   return compiler.run(uri).then((_) {
-    var commonMasks = compiler.commonMasks;
-    var typesInferrer = compiler.globalInference.typesInferrer;
+    var commonMasks = compiler.closedWorld.commonMasks;
+    var typesInferrer = compiler.globalInference.typesInferrerInternal;
     var element = findElement(compiler, "foo");
     var mask = typesInferrer.getReturnTypeOfElement(element);
     Expect.equals(commonMasks.uint31Type, simplify(mask, compiler));
   });
 }
 
 main() {
   asyncStart();
   runTest().then((_) {
     // Make sure that the type is still correct when we do a second compilation.
     return runTest();
   }).whenComplete(asyncEnd);
 }