Move common identifiers, names and selectors to a separate library.

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 '../compiler.dart' show
     Compiler,
     isPrivateName;
 import '../dart_types.dart';
@@ skipping 183 matching lines @@
         MessageKind kind = MessageKind.CANNOT_FIND_CONSTRUCTOR;
         Map arguments = {'constructorName': ''};
         // TODO(ahe): Why is this a compile-time error? Or if it is an error,
         // why do we bother to registerThrowNoSuchMethod below?
         compiler.reportError(node, kind, arguments);
         superMember = new ErroneousElementX(
             kind, arguments, '', element);
         registry.registerThrowNoSuchMethod();
       } else {
         ConstructorElement superConstructor = superMember;
-        Selector callToMatch = new Selector.call("", element.library, 0);
+        Selector callToMatch = new Selector.call(const PublicName(''), 0);
         superConstructor.computeType(compiler);
         if (!callToMatch.applies(superConstructor, compiler.world)) {
           MessageKind kind = MessageKind.NO_MATCHING_CONSTRUCTOR_FOR_IMPLICIT;
           compiler.reportError(node, kind);
           superMember = new ErroneousElementX(kind, {}, '', element);
         }
       }
       FunctionElement constructor =
           new SynthesizedConstructorElementX.forDefault(superMember, element);
       if (superMember.isErroneous) {
@@ skipping 458 matching lines @@
     Identifier selector = node.selector.asIdentifier();
     var e = prefixElement.lookupLocalMember(selector.source);
     if (e == null || !e.impliesType) {
       error(node.selector, MessageKind.CANNOT_RESOLVE_TYPE,
             {'typeName': node.selector});
       return;
     }
     loadSupertype(e, node);
   }
 }