Mix VARIABLE_REFERENCE_ERRORS into the full errors list on ChangeNotice.

pkg/analyzer/lib/src/task/dart_work_manager.dart

Index: pkg/analyzer/lib/src/task/dart_work_manager.dart
diff --git a/pkg/analyzer/lib/src/task/dart_work_manager.dart b/pkg/analyzer/lib/src/task/dart_work_manager.dart
index 0654e3c6bcc757819dc4c17a5409f48de877e651..3028522964401c029cca9de8a3239e1056324185 100644
--- a/pkg/analyzer/lib/src/task/dart_work_manager.dart
+++ b/pkg/analyzer/lib/src/task/dart_work_manager.dart
@@ -43,9 +43,11 @@ class DartWorkManager implements WorkManager {
    */
   static final List<ResultDescriptor> _UNIT_ERRORS = <ResultDescriptor>[

[Brian Wilkerson, 2015/06/12 19:27:48]

I don't like the fact that work manager has duplicated the list of errors that
need to be merged. Perhaps we could add comments to these lists and to the
corresponding tasks that point to each other so that we're less likely to only
update the list in one place.

[scheglov, 2015/06/12 19:52:03]

No changes for now.
But we now return DART_ERRORS when it is valid, so we eventually return the full
list of errors anyway.

     BUILD_FUNCTION_TYPE_ALIASES_ERRORS,
+    CONSTRUCTORS_ERRORS,
     HINTS,
     RESOLVE_REFERENCES_ERRORS,
     RESOLVE_TYPE_NAMES_ERRORS,
+    VARIABLE_REFERENCE_ERRORS,
     VERIFY_ERRORS
   ];