Use List<String> for combinators in summaries.

pkg/analyzer/lib/src/summary/summarize_elements.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 serialization.elements;
 
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/dart/element/type.dart';
 import 'package:analyzer/src/dart/element/type.dart';
 import 'package:analyzer/src/generated/resolver.dart';
@@ skipping 324 matching lines @@
     return b;
   }
 
   /**
    * Serialize the given [combinator] into an [UnlinkedCombinator].
    */
   UnlinkedCombinatorBuilder serializeCombinator(
       NamespaceCombinator combinator) {
     UnlinkedCombinatorBuilder b = new UnlinkedCombinatorBuilder(ctx);
     if (combinator is ShowElementCombinator) {
-      b.shows = combinator.shownNames.map(serializeCombinatorName).toList();
+      b.shows = combinator.shownNames;
     } else if (combinator is HideElementCombinator) {
-      b.hides = combinator.hiddenNames.map(serializeCombinatorName).toList();
+      b.hides = combinator.hiddenNames;
     }
     return b;
   }
 
   /**
-   * Serialize the given [name] into an [UnlinkedCombinatorName].
-   */
-  UnlinkedCombinatorNameBuilder serializeCombinatorName(String name) {
-    return encodeUnlinkedCombinatorName(ctx, name: name);
-  }
-
-  /**
    * Return the index of the entry in the dependency table
    * ([PrelinkedLibrary.dependencies]) for the given [dependentLibrary].  A new
    * entry is added to the table if necessary to satisfy the request.
    */
   int serializeDependency(LibraryElement dependentLibrary) {
     return dependencyMap.putIfAbsent(dependentLibrary, () {
       int index = dependencies.length;
       dependencies.add(encodePrelinkedDependency(ctx,
           uri: dependentLibrary.source.uri.toString()));
       return index;
@@ skipping 270 matching lines @@
     UnlinkedVariableBuilder b = new UnlinkedVariableBuilder(ctx);
     b.name = variable.name;
     b.type = serializeTypeRef(variable.type, variable);
     b.isStatic = variable.isStatic && variable.enclosingElement is ClassElement;
     b.isFinal = variable.isFinal;
     b.isConst = variable.isConst;
     b.hasImplicitType = variable.hasImplicitType;
     return b;
   }
 }