Introduce "CommonElements"

pkg/compiler/lib/src/resolution/class_hierarchy.dart

 // Copyright (c) 2015, 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.resolution.class_hierarchy;
 
 import '../common.dart';
 import '../common/resolution.dart' show Resolution;
 import '../core_types.dart' show CoreClasses, CoreTypes;
 import '../dart_types.dart';
@@ skipping 535 matching lines @@
           .createOrderedTypeSet(supertype, cls.interfaces);
     } else {
       assert(cls == resolution.coreClasses.objectClass);
       cls.allSupertypesAndSelf =
           new OrderedTypeSet.singleton(cls.computeType(resolution));
     }
   }
 
   isBlackListed(DartType type) {
     LibraryElement lib = element.library;
-    return !identical(lib, resolution.coreLibrary) &&
+    return !identical(lib, resolution.commonElements.coreLibrary) &&
         !resolution.target.isTargetSpecificLibrary(lib) &&
         (type.isDynamic ||
             type == coreTypes.boolType ||
             type == coreTypes.numType ||
             type == coreTypes.intType ||
             type == coreTypes.doubleType ||
             type == coreTypes.stringType ||
             type == coreTypes.nullType);
   }
 }
@@ skipping 78 matching lines @@
     Identifier selector = node.selector.asIdentifier();
     var e = prefixElement.lookupLocalMember(selector.source);
     if (e == null || !e.impliesType) {
       reporter.reportErrorMessage(node.selector,
           MessageKind.CANNOT_RESOLVE_TYPE, {'typeName': node.selector});
       return;
     }
     loadSupertype(e, node);
   }
 }