Fix for file:// package: references to the same element.

pkg/analysis_server/lib/src/services/index/store/codec.dart

 // Copyright (c) 2014, 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 services.src.index.store.codec;
 
 import 'dart:collection';
 
 import 'package:analysis_server/src/services/index/index.dart';
 import 'package:analysis_server/src/services/index/store/collection.dart';
@@ skipping 164 matching lines @@
    */
   List<int> _getLocationPath(Element element, ElementLocation location,
       bool usePath) {
     // prepare the location components
     List<String> components = location.components;
     if (usePath) {
       LibraryElement library = element.library;
       if (library != null) {
         components = components.toList();
         components[0] = library.source.fullName;
-        if (element.enclosingElement is CompilationUnitElement) {
-          components[1] = library.definingCompilationUnit.source.fullName;
+        for (Element e = element; e != null; e = e.enclosingElement) {

[Brian Wilkerson, 2015/01/26 19:07:15]

Or perhaps:

  CompilationUnitElement unit = element.getAncestor(CompilationUnitElement);
  if (unit != null) {
    components[1] = unit.source.fullName;
  } 

+          if (e is CompilationUnitElement) {
+            components[1] = e.source.fullName;
+            break;
+          }
         }
       }
     }
     // encode the location
     int length = components.length;
     if (_hasLocalOffset(components)) {
       List<int> path = new List<int>();
       for (String component in components) {
         int atOffset = component.indexOf('@');
         if (atOffset == -1) {
@@ skipping 91 matching lines @@
   int encode(String name) {
     int index = nameToIndex[name];
     if (index == null) {
       index = _indexToName.length;
       nameToIndex[name] = index;
       _indexToName.add(name);
     }
     return index;
   }
 }