Add ImportElement and ExportElement

pkg/compiler/lib/src/typechecker.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.typechecker;
 
 import 'common/names.dart' show
     Identifiers;
 import 'common/tasks.dart' show
     CompilerTask;
@@ skipping 720 matching lines @@
   }
 
   void checkPrivateAccess(Node node, Element element, String name) {
     if (name != null &&
         Name.isPrivateName(name) &&
         element.library != currentLibrary) {
       reportTypeWarning(
           node,
           MessageKind.PRIVATE_ACCESS,
           {'name': name,
-           'libraryName': element.library.getLibraryOrScriptName()});
+           'libraryName': element.library.libraryOrScriptName});
     }
 
   }
 
   ElementAccess lookupMember(Node node, DartType receiverType, String name,
                              MemberKind memberKind, Element receiverElement,
                              {bool lookupClassMember: false,
                               bool isHint: false}) {
     if (receiverType.treatAsDynamic) {
       return const DynamicAccess();
@@ skipping 73 matching lines @@
     if (!interface.element.isProxy && !analyzingInitializer) {
       bool foundPrivateMember = false;
       if (memberName.isPrivate) {
         void findPrivateMember(MemberSignature member) {
           if (memberName.isSimilarTo(member.name)) {
             PrivateName privateName = member.name;
             reportMessage(
                  node,
                  MessageKind.PRIVATE_ACCESS,
                  {'name': name,
-                  'libraryName': privateName.library.getLibraryOrScriptName()},
+                  'libraryName': privateName.library.libraryOrScriptName},
                  isHint: isHint);
             foundPrivateMember = true;
           }
         }
         // TODO(johnniwinther): Avoid computation of all class members.
         MembersCreator.computeAllClassMembers(compiler, interface.element);
         if (lookupClassMember) {
           interface.element.forEachClassMember(findPrivateMember);
         } else {
           interface.element.forEachInterfaceMember(findPrivateMember);
@@ skipping 1097 matching lines @@
 
   visitTypedef(Typedef node) {
     // Do not typecheck [Typedef] nodes.
   }
 
   visitNode(Node node) {
     compiler.internalError(node,
         'Unexpected node ${node.getObjectDescription()} in the type checker.');
   }
 }