Share LibrarySpecificUnits when possible

pkg/analyzer/lib/src/task/options_work_manager.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.task.options_work_manager;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/engine.dart'
@@ skipping 19 matching lines @@
   OptionsWorkManager(this.context) {
     analysisCache.onResultInvalidated.listen(onResultInvalidated);
   }
 
   /// Returns the correctly typed result of `context.analysisCache`.
   AnalysisCache get analysisCache => context.analysisCache;
 
   /// Specifies that the client wants the given [result] of the given [target]
   /// to be computed with priority.
   void addPriorityResult(AnalysisTarget target, ResultDescriptor result) {
-    priorityResultQueue.add(new TargetedResult(target, result));
+    priorityResultQueue
+        .add(new TargetedResult(context.canonicalizeTarget(target), result));
   }
 
   @override
   void applyChange(List<Source> addedSources, List<Source> changedSources,
       List<Source> removedSources) {
     addedSources = addedSources.where(_isOptionsSource).toList();
     changedSources = changedSources.where(_isOptionsSource).toList();
     removedSources = removedSources.where(_isOptionsSource).toList();
     // source queue
     sourceQueue.addAll(addedSources);
@@ skipping 109 matching lines @@
   bool _needsComputing(AnalysisTarget target, ResultDescriptor result) {
     CacheState state = analysisCache.getState(target, result);
     return state != CacheState.VALID && state != CacheState.ERROR;
   }
 
   /// Return `true` if the given target is an analysis options source.
   static bool _isOptionsSource(AnalysisTarget target) =>
       target is Source &&
       AnalysisEngine.isAnalysisOptionsFileName(target.fullName);
 }