Record information about parts of dependent libraries in summaries.

pkg/analyzer/lib/src/summary/prelink.dart

 // Copyright (c) 2016, 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.
 
 import 'package:analyzer/src/summary/format.dart';
 import 'package:analyzer/src/summary/name_filter.dart';
 
 /**
  * Create a [PrelinkedLibraryBuilder] corresponding to the given
  * [definingUnit], which should be the defining compilation unit for a library.
@@ skipping 138 matching lines @@
    * [definingUnit] via [relativeUri], by aggregating together public namespace
    * information from all of its parts.
    */
   Map<String, _Meaning> aggregatePublicNamespace(String relativeUri) {
     if (uriToDependency.containsKey(relativeUri)) {
       return dependencyToPublicNamespace[uriToDependency[relativeUri]];
     }
     assert(dependencies.length == dependencyToPublicNamespace.length);
     int dependency = dependencies.length;
     uriToDependency[relativeUri] = dependency;
-    dependencies.add(encodePrelinkedDependency(uri: relativeUri));
+    List<String> unitUris = getUnitUris(relativeUri);
+    PrelinkedDependencyBuilder prelinkedDependency =
+        encodePrelinkedDependency(uri: relativeUri, parts: unitUris.sublist(1));
+    dependencies.add(prelinkedDependency);
 
     Map<String, _Meaning> aggregated = <String, _Meaning>{};
 
-    List<String> unitUris = getUnitUris(relativeUri);
     for (int unitNum = 0; unitNum < unitUris.length; unitNum++) {
       String unitUri = unitUris[unitNum];
       UnlinkedPublicNamespace importedNamespace = getImportCached(unitUri);
       if (importedNamespace == null) {
         continue;
       }
       for (UnlinkedPublicName name in importedNamespace.names) {
         aggregated.putIfAbsent(
             name.name,
             () => new _Meaning(
@@ skipping 233 matching lines @@
    * [sourceUri] is also relative.
    */
   String resolveUri(String sourceUri, String relativeUri) {
     if (sourceUri == null) {
       return relativeUri;
     } else {
       return Uri.parse(sourceUri).resolve(relativeUri).toString();
     }
   }
 }