Revert 6ad38498c8673f1fbe3e12c49b1cf590305676dd (PARSED_UNIT).

pkg/analyzer/lib/src/task/dart_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.dart_work_manager;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/engine.dart'
@@ skipping 11 matching lines @@
  */
 class DartWorkManager implements WorkManager {
   /**
    * The list of errors that are reported for raw Dart [Source]s.
    */
   static final List<ResultDescriptor<List<AnalysisError>>> _SOURCE_ERRORS =
       <ResultDescriptor<List<AnalysisError>>>[
     BUILD_DIRECTIVES_ERRORS,
     BUILD_LIBRARY_ERRORS,
     PARSE_ERRORS,
-    RESOLVE_DIRECTIVES_ERRORS,
     SCAN_ERRORS
   ];
 
   /**
    * The list of errors that are reported for raw Dart [LibrarySpecificUnit]s.
    */
   static final List<ResultDescriptor<List<AnalysisError>>> _UNIT_ERRORS =
       <ResultDescriptor<List<AnalysisError>>>[
     HINTS,
     LINTS,
@@ skipping 254 matching lines @@
           } else {
             bool needErrors = _shouldErrorsBeComputed(source);
             if (needErrors) {
               librarySourceQueue.add(target);
             }
           }
         }
       }
     }
     // Update parts in libraries.
-    {
+    if (isDartLibrarySource) {
+      Source library = target;
       List<Source> includedParts = outputs[INCLUDED_PARTS] as List<Source>;
-      if (includedParts != null && !includedParts.isEmpty) {
-        Source library = target;
+      if (includedParts != null) {
         libraryPartsMap[library] = includedParts;
         for (Source part in includedParts) {
           List<Source> libraries =
               partLibrariesMap.putIfAbsent(part, () => <Source>[]);
           if (!libraries.contains(library)) {
             libraries.add(library);
             _invalidateContainingLibraries(part);
           }
         }
       }
     }
     // Update notice.
     if (isDartSource) {
       bool shouldSetErrors = false;
       outputs.forEach((ResultDescriptor descriptor, value) {
-        if (descriptor == PARSED_UNIT1 && value != null) {
+        if (descriptor == PARSED_UNIT && value != null) {
           context.getNotice(target).parsedDartUnit = value;
           shouldSetErrors = true;
         }
         if (descriptor == DART_ERRORS) {
           shouldSetErrors = true;
         }
       });
       if (shouldSetErrors) {
         AnalysisErrorInfo info = context.getErrors(target);
         context.getNotice(target).setErrors(info.errors, info.lineInfo);
@@ skipping 82 matching lines @@
         }
       }
     }
     // Invalidate targets and values.
     unitTargets.forEach(partition.remove);
     for (Source dartSource in dartSources) {
       CacheEntry entry = partition.get(dartSource);
       if (entry != null) {
         // TODO(scheglov) we invalidate too much.
         // Would be nice to invalidate just URLs resolution.
-        entry.setState(PARSED_UNIT1, CacheState.INVALID);
         entry.setState(PARSED_UNIT, CacheState.INVALID);
         entry.setState(IMPORTED_LIBRARIES, CacheState.INVALID);
         entry.setState(EXPLICITLY_IMPORTED_LIBRARIES, CacheState.INVALID);
         entry.setState(EXPORTED_LIBRARIES, CacheState.INVALID);
         entry.setState(INCLUDED_PARTS, CacheState.INVALID);
         entry.setState(LIBRARY_SPECIFIC_UNITS, CacheState.INVALID);
         entry.setState(UNITS, CacheState.INVALID);
       }
     }
   }
@@ skipping 53 matching lines @@
     }
   }
 
   bool _shouldErrorsBeComputed(Source source) =>
       context.shouldErrorsBeAnalyzed(source);
 
   static bool _isDartSource(AnalysisTarget target) {
     return target is Source && AnalysisEngine.isDartFileName(target.fullName);
   }
 }