Use List<String> for combinators in summaries.

pkg/analyzer/lib/src/summary/public_namespace_computer.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 analyzer.src.summary.public_namespace_visitor;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/src/summary/base.dart';
 import 'package:analyzer/src/summary/format.dart';
 
 /**
  * Compute the public namespace portion of the summary for the given [unit],
  * which is presumed to be an unresolved AST.
  */
 UnlinkedPublicNamespaceBuilder computePublicNamespace(
     BuilderContext ctx, CompilationUnit unit) {
   _PublicNamespaceVisitor visitor = new _PublicNamespaceVisitor(ctx);
   unit.accept(visitor);
   return encodeUnlinkedPublicNamespace(ctx,
       names: visitor.names, exports: visitor.exports, parts: visitor.parts);
 }
 
 class _CombinatorEncoder extends SimpleAstVisitor<UnlinkedCombinatorBuilder> {
   final BuilderContext ctx;
 
   _CombinatorEncoder(this.ctx);
 
-  List<UnlinkedCombinatorNameBuilder> encodeNames(
-          NodeList<SimpleIdentifier> names) =>
-      names
-          .map((SimpleIdentifier id) =>
-              encodeUnlinkedCombinatorName(ctx, name: id.name))
-          .toList();
+  List<String> encodeNames(NodeList<SimpleIdentifier> names) =>
+      names.map((SimpleIdentifier id) => id.name).toList();
 
   @override
   UnlinkedCombinatorBuilder visitHideCombinator(HideCombinator node) {
     return encodeUnlinkedCombinator(ctx, hides: encodeNames(node.hiddenNames));
   }
 
   @override
   UnlinkedCombinatorBuilder visitShowCombinator(ShowCombinator node) {
     return encodeUnlinkedCombinator(ctx, shows: encodeNames(node.shownNames));
   }
@@ skipping 60 matching lines @@
 
   @override
   visitVariableDeclaration(VariableDeclaration node) {
     String name = node.name.name;
     addNameIfPublic(name, PrelinkedReferenceKind.other);
     if (!node.isFinal && !node.isConst) {
       addNameIfPublic('$name=', PrelinkedReferenceKind.other);
     }
   }
 }