Fix new dart2dart backend.

pkg/compiler/lib/src/resolution/members.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.
 
 part of resolution;
 
 abstract class TreeElements {
   AnalyzableElement get analyzedElement;
   Iterable<Node> get superUses;
 
@@ skipping 1482 matching lines @@
       String constructorName = '';
       Selector callToMatch = new Selector.call(
           constructorName,
           classElement.library,
           0);
 
       final bool isSuperCall = true;
       ClassElement lookupTarget = getSuperOrThisLookupTarget(constructor,
                                                              isSuperCall,
                                                              functionNode);
-      Selector constructorSelector = new Selector.callDefaultConstructor(
-          visitor.enclosingElement.library);
+      Selector constructorSelector = new Selector.callDefaultConstructor();
       Element calledConstructor = lookupTarget.lookupConstructor(
           constructorSelector.name);
 
       final String className = lookupTarget.name;
       final bool isImplicitSuperCall = true;
       verifyThatConstructorMatchesCall(constructor,
                                        calledConstructor,
                                        callToMatch,
                                        isImplicitSuperCall,
                                        functionNode,
@@ skipping 794 matching lines @@
 
   bool isNamedConstructor(Send node) => node.receiver != null;
 
   Selector getRedirectingThisOrSuperConstructorSelector(Send node) {
     if (isNamedConstructor(node)) {
       String constructorName = node.selector.asIdentifier().source;
       return new Selector.callConstructor(
           constructorName,
           enclosingElement.library);
     } else {
-      return new Selector.callDefaultConstructor(
-          enclosingElement.library);
+      return new Selector.callDefaultConstructor();
     }
   }
 
   FunctionElement resolveConstructorRedirection(FunctionElementX constructor) {
     FunctionExpression node = constructor.parseNode(compiler);
 
     // A synthetic constructor does not have a node.
     if (node == null) return null;
     if (node.initializers == null) return null;
     Link<Node> initializers = node.initializers.nodes;
@@ skipping 2702 matching lines @@
 }
 
 /// The result for the resolution of the `assert` method.
 class AssertResult implements ResolutionResult {
   const AssertResult();
 
   Element get element => null;
 
   String toString() => 'AssertResult()';
 }