Set empty namespaces for public/exportNamespace of synthetic libraries.

pkg/analyzer/lib/src/summary/resynthesize.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 summary_resynthesizer;
 
 import 'dart:collection';
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
@@ skipping 201 matching lines @@
       if (serializedLibrary == null) {
         LibraryElementImpl libraryElement =
             new LibraryElementImpl(context, '', -1, 0);
         libraryElement.isSynthetic = true;
         CompilationUnitElementImpl unitElement =
             new CompilationUnitElementImpl(librarySource.shortName);
         libraryElement.definingCompilationUnit = unitElement;
         unitElement.source = librarySource;
         unitElement.librarySource = librarySource;
         libraryElement.createLoadLibraryFunction(typeProvider);
+        libraryElement.publicNamespace = new Namespace({});
+        libraryElement.exportNamespace = new Namespace({});
         return libraryElement;
       }
       UnlinkedUnit unlinkedSummary = _getUnlinkedSummaryOrNull(uri);
       if (unlinkedSummary == null) {
         throw new StateError('Unable to find unlinked summary: $uri');
       }
       List<UnlinkedUnit> serializedUnits = <UnlinkedUnit>[unlinkedSummary];
       for (String part in serializedUnits[0].publicNamespace.parts) {
         Source partSource = sourceFactory.resolveUri(librarySource, part);
         String partAbsUri = partSource.uri.toString();
@@ skipping 1660 matching lines @@
   static String _getElementIdentifier(String name, ReferenceKind kind) {
     if (kind == ReferenceKind.topLevelPropertyAccessor ||
         kind == ReferenceKind.propertyAccessor) {
       if (!name.endsWith('=')) {
         return name + '?';
       }
     }
     return name;
   }
 }