Invalidate parsing information when a file is added.

pkg/analyzer/lib/src/generated/engine.dart

Index: pkg/analyzer/lib/src/generated/engine.dart
diff --git a/pkg/analyzer/lib/src/generated/engine.dart b/pkg/analyzer/lib/src/generated/engine.dart
index b8449a503295f28feeb5ad02528e8cebcf783ae7..1f359318c29bebd6e6194ff81ff58e4090cfe4c5 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -1572,10 +1572,10 @@ class AnalysisContextImpl implements InternalAnalysisContext {
         Source source = sourcesToInvalidate[i];
         SourceEntry entry = _getReadableSourceEntry(source);
         if (entry is DartEntry) {
-          entry.invalidateAllResolutionInformation(false);
+          entry.invalidateParseInformation();
           _workManager.add(source, _computePriority(entry));
         } else if (entry is HtmlEntry) {
-          entry.invalidateAllResolutionInformation(false);
+          entry.invalidateParseInformation();
           _workManager.add(source, SourcePriority.HTML);
         }
       }
@@ -8155,6 +8155,18 @@ class DartEntry extends SourceEntry {
   }
 
   /**
+   * Invalidate all of the parse and resolution information associated with
+   * this source.
+   */
+  void invalidateParseInformation() {
+    setState(SOURCE_KIND, CacheState.INVALID);
+    setState(PARSE_ERRORS, CacheState.INVALID);
+    setState(PARSED_UNIT, CacheState.INVALID);
+    _containingLibraries.clear();
+    _discardCachedResolutionInformation(true);
+  }
+
+  /**
    * Record that an [exception] occurred while attempting to build the element
    * model for the source represented by this entry in the context of the given
    * [library]. This will set the state of all resolution-based information as
@@ -9160,6 +9172,17 @@ class HtmlEntry extends SourceEntry {
     }
   }
 
+  /**
+   * Invalidate all of the parse and resolution information associated with
+   * this source.
+   */
+  void invalidateParseInformation() {
+    setState(PARSE_ERRORS, CacheState.INVALID);
+    setState(PARSED_UNIT, CacheState.INVALID);
+    setState(RESOLVED_UNIT, CacheState.INVALID);

[Brian Wilkerson, 2015/01/20 21:32:04]

I would have expected the RESOLVED_UNIT to get invalidated by
invalidateAllResolutionInformation.

[scheglov, 2015/01/20 23:12:29]

Done.

+    invalidateAllResolutionInformation(true);
+  }
+
   @override
   void recordContentError(CaughtException exception) {
     super.recordContentError(exception);