Move DartWorkManager notification to _sourceChanged().

pkg/analyzer/lib/src/context/context.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.context;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:analyzer/src/cancelable_future.dart';
@@ skipping 1153 matching lines @@
       int oldLength, int newLength) {
     if (_contentRangeChanged(source, contents, offset, oldLength, newLength)) {
       _onSourcesChangedController.add(new SourcesChangedEvent.changedRange(
           source, contents, offset, oldLength, newLength));
     }
   }
 
   @override
   void setContents(Source source, String contents) {
     _contentsChanged(source, contents, true);
-    dartWorkManager.applyChange(
-        Source.EMPTY_LIST, <Source>[source], Source.EMPTY_LIST);
   }
 
   @override
   void visitCacheItems(void callback(Source source, SourceEntry dartEntry,
       DataDescriptor rowDesc, CacheState state)) {
     // TODO(brianwilkerson) Figure out where this is used and adjust the call
     // sites to use CacheEntry's.
 //    bool hintsEnabled = _options.hint;
 //    bool lintsEnabled = _options.lint;
 //    MapIterator<AnalysisTarget, cache.CacheEntry> iterator = _cache.iterator();
@@ skipping 500 matching lines @@
           int time = fileContents.modificationTime;
           for (CacheEntry entry in _entriesFor(source)) {
             entry.modificationTime = time;
           }
           return;
         }
       } catch (e) {}
     }
     // We need to invalidate the cache.
     entry.setState(CONTENT, CacheState.INVALID);
+    dartWorkManager.applyChange(
+        Source.EMPTY_LIST, <Source>[source], Source.EMPTY_LIST);
   }
 
   /**
    * Record that the give [source] has been deleted.
    */
   void _sourceDeleted(Source source) {
     // TODO(brianwilkerson) Implement this.
 //    SourceEntry sourceEntry = _cache.get(source);
 //    if (sourceEntry is HtmlEntry) {
 //      HtmlEntry htmlEntry = sourceEntry;
@@ skipping 332 matching lines @@
     PendingFuture pendingFuture =
         new PendingFuture<T>(_context, target, computeValue);
     if (!pendingFuture.evaluate(entry)) {
       _context._pendingFutureTargets
           .putIfAbsent(target, () => <PendingFuture>[])
           .add(pendingFuture);
     }
     return pendingFuture.future;
   }
 }