When a target is removed, invalidate all dependent results.

pkg/analyzer/lib/src/context/cache.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.context.cache;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/engine.dart'
     show AnalysisEngine, CacheState, InternalAnalysisContext, RetentionPriority;
@@ skipping 416 matching lines @@
       CacheEntry entry = _partition.get(dependentResult.target);
       entry._invalidate(dependentResult.result, true);
     });
     // If empty, remove the entry altogether.
     if (_resultMap.isEmpty) {
       _partition._targetMap.remove(target);
     }
   }
 
   /**
+   * Invalidates all the results of this entry, with propagation.
+   */
+  void _invalidateAll() {
+    List<ResultDescriptor> results = _resultMap.keys.toList();
+    for (ResultDescriptor result in results) {
+      _invalidate(result, true);
+    }
+  }
+
+  /**
    * Set the [dependedOn] on which this result depends.
    */
   void _setDependedOnResults(ResultData thisData, TargetedResult thisResult,
       List<TargetedResult> dependedOn) {
     thisData.dependedOnResults = dependedOn;
     thisData.dependedOnResults.forEach((TargetedResult dependentResult) {
       ResultData data = _partition._getDataFor(dependentResult);
       data.dependentResults.add(thisResult);
     });
   }
@@ skipping 262 matching lines @@
     _targetMap[target] = entry;
   }
 
   /**
    * Remove all information related to the given [target] from this cache.
    */
   void remove(AnalysisTarget target) {
     for (CacheFlushManager flushManager in _flushManagerMap.values) {
       flushManager.targetRemoved(target);
     }
-    _targetMap.remove(target);
+    CacheEntry entry = _targetMap.remove(target);
+    if (entry != null) {
+      entry._invalidateAll();
+    }
   }
 
   /**
    * Records that a value of the result described by the given [descriptor]
    * for the given [target] was just read from the cache.
    */
   void resultAccessed(AnalysisTarget target, ResultDescriptor descriptor) {
     CacheFlushManager flushManager = _getFlushManager(descriptor);
     TargetedResult result = new TargetedResult(target, descriptor);
     flushManager.resultAccessed(result);
@@ skipping 161 matching lines @@
 class UniversalCachePartition extends CachePartition {
   /**
    * Initialize a newly created cache partition, belonging to the given
    * [context].
    */
   UniversalCachePartition(InternalAnalysisContext context) : super(context);
 
   @override
   bool isResponsibleFor(AnalysisTarget target) => true;
 }