Remove Compiler.commonElements

tests/compiler/dart2js/simple_inferrer_test.dart

 // Copyright (c) 2013, 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 'package:compiler/src/types/types.dart' show TypeMask;
 import 'type_mask_test_helper.dart';
 
 import 'compiler_helper.dart';
@@ skipping 743 matching lines @@
             'returnInt6', commonMasks.uint32Type); // uint31+uint31->uint32
         checkReturn('returnIntOrNull', commonMasks.uint31Type.nullable());
         checkReturn('returnInt3', commonMasks.uint31Type);
         checkReturn('returnDynamic', commonMasks.dynamicType);
         checkReturn('returnInt4', commonMasks.uint31Type);
         checkReturn('returnInt7', commonMasks.positiveIntType);
         checkReturn('returnInt8', commonMasks.positiveIntType);
         checkReturn('returnEmpty1', const TypeMask.nonNullEmpty());
         checkReturn('returnEmpty2', const TypeMask.nonNullEmpty());
         TypeMask intType = new TypeMask.nonNullSubtype(
-            compiler.commonElements.intClass, closedWorld);
+            closedWorld.commonElements.intClass, closedWorld);
         checkReturn('testIsCheck1', intType);
         checkReturn('testIsCheck2', intType);
         checkReturn('testIsCheck3', intType.nullable());
         checkReturn('testIsCheck4', intType);
         checkReturn('testIsCheck5', intType);
         checkReturn('testIsCheck6', commonMasks.dynamicType);
         checkReturn('testIsCheck7', intType);
         checkReturn('testIsCheck8', commonMasks.dynamicType);
         checkReturn('testIsCheck9', intType);
         checkReturn('testIsCheck10', commonMasks.dynamicType);
@@ skipping 15 matching lines @@
         checkReturn('testIsCheck25', commonMasks.dynamicType);
         checkReturn('testIsCheck26', intType);
         checkReturn('testIsCheck27', intType);
         checkReturn('testIsCheck28', commonMasks.dynamicType);
         checkReturn('testIsCheck29', commonMasks.dynamicType);
         checkReturn('testIf1', commonMasks.uint31Type.nullable());
         checkReturn('testIf2', commonMasks.uint31Type.nullable());
         checkReturn(
             'returnAsString',
             new TypeMask.subtype(
-                compiler.commonElements.stringClass, closedWorld));
+                closedWorld.commonElements.stringClass, closedWorld));
         checkReturn('returnIntAsNum', commonMasks.uint31Type);
         checkReturn('returnAsTypedef', commonMasks.functionType.nullable());
         checkReturn('returnTopLevelGetter', commonMasks.uint31Type);
         checkReturn('testDeadCode', commonMasks.uint31Type);
         checkReturn('testLabeledIf', commonMasks.uint31Type.nullable());
         checkReturn(
             'testSwitch1',
             simplify(
                 commonMasks.intType
                     .union(commonMasks.doubleType, closedWorld)
@@ skipping 70 matching lines @@
         checkReturn('testSpecialization3', commonMasks.uint31Type.nullable());
         checkReturn('testReturnNull1', commonMasks.nullType);
         checkReturn('testReturnNull2', commonMasks.nullType);
         checkReturn('testReturnNull3', commonMasks.dynamicType);
         checkReturn('testReturnNull4', commonMasks.nullType);
         checkReturn('testReturnNull5', commonMasks.nullType);
         checkReturn('testReturnNull6', commonMasks.dynamicType);
         checkReturn('testReturnNotEquals', commonMasks.boolType);
       }));
 }