Add uriOffset and uriEnd to the summary.

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';
 
@@ skipping 24 matching lines @@
 
   @override
   UnlinkedCombinatorBuilder visitShowCombinator(ShowCombinator node) {
     return encodeUnlinkedCombinator(ctx, shows: encodeNames(node.shownNames));
   }
 }
 
 class _PublicNamespaceVisitor extends RecursiveAstVisitor {
   final BuilderContext ctx;
   final List<UnlinkedPublicNameBuilder> names = <UnlinkedPublicNameBuilder>[];
-  final List<UnlinkedExportBuilder> exports = <UnlinkedExportBuilder>[];
-  final List<UnlinkedPartBuilder> parts = <UnlinkedPartBuilder>[];
+  final List<UnlinkedExportPublicBuilder> exports =
+      <UnlinkedExportPublicBuilder>[];
+  final List<String> parts = <String>[];
 
   _PublicNamespaceVisitor(this.ctx);
 
   void addNameIfPublic(
       String name, PrelinkedReferenceKind kind, int numTypeParameters) {
     if (isPublic(name)) {
       names.add(encodeUnlinkedPublicName(ctx,
           name: name, kind: kind, numTypeParameters: numTypeParameters));
     }
   }
@@ skipping 12 matching lines @@
         node.typeParameters?.typeParameters?.length ?? 0);
   }
 
   @override
   visitEnumDeclaration(EnumDeclaration node) {
     addNameIfPublic(node.name.name, PrelinkedReferenceKind.classOrEnum, 0);
   }
 
   @override
   visitExportDirective(ExportDirective node) {
-    exports.add(encodeUnlinkedExport(ctx,
+    exports.add(encodeUnlinkedExportPublic(ctx,
         uri: node.uri.stringValue,
         combinators: node.combinators
             .map((Combinator c) => c.accept(new _CombinatorEncoder(ctx)))
             .toList()));
   }
 
   @override
   visitFunctionDeclaration(FunctionDeclaration node) {
     String name = node.name.name;
     if (node.isSetter) {
       name += '=';
     }
     addNameIfPublic(name, PrelinkedReferenceKind.other,
         node.functionExpression.typeParameters?.typeParameters?.length ?? 0);
   }
 
   @override
   visitFunctionTypeAlias(FunctionTypeAlias node) {
     addNameIfPublic(node.name.name, PrelinkedReferenceKind.typedef,
         node.typeParameters?.typeParameters?.length ?? 0);
   }
 
   @override
   visitPartDirective(PartDirective node) {
-    parts.add(encodeUnlinkedPart(ctx, uri: node.uri.stringValue));
+    parts.add(node.uri.stringValue);
   }
 
   @override
   visitVariableDeclaration(VariableDeclaration node) {
     String name = node.name.name;
     addNameIfPublic(name, PrelinkedReferenceKind.other, 0);
     if (!node.isFinal && !node.isConst) {
       addNameIfPublic('$name=', PrelinkedReferenceKind.other, 0);
     }
   }
 }