Revert 6ad38498c8673f1fbe3e12c49b1cf590305676dd (PARSED_UNIT).

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

Index: pkg/analyzer/lib/src/generated/incremental_resolver.dart
diff --git a/pkg/analyzer/lib/src/generated/incremental_resolver.dart b/pkg/analyzer/lib/src/generated/incremental_resolver.dart
index 41fa44f637b04f6a24712da5537293c6632cb2d2..274b7a1cb36d8d18572dec63aeea0b9eb6fd2abd 100644
--- a/pkg/analyzer/lib/src/generated/incremental_resolver.dart
+++ b/pkg/analyzer/lib/src/generated/incremental_resolver.dart
@@ -118,7 +118,6 @@ class IncrementalBodyDelta extends Delta {
         isByTask(PropagateVariableTypeTask.DESCRIPTOR) ||
         isByTask(ScanDartTask.DESCRIPTOR) ||
         isByTask(ResolveConstantExpressionTask.DESCRIPTOR) ||
-        isByTask(ResolveDirectivesTask.DESCRIPTOR) ||
         isByTask(ResolveDirectiveElementsTask.DESCRIPTOR) ||
         isByTask(ResolveInstanceFieldsInUnitTask.DESCRIPTOR) ||
         isByTask(ResolveLibraryReferencesTask.DESCRIPTOR) ||
@@ -877,9 +876,7 @@ class PoorMansIncrementalResolver {
     _sourceEntry.setValueIncremental(LINE_INFO, _newLineInfo, false);
     // parse results
     _sourceEntry.setValueIncremental(PARSE_ERRORS, _newParseErrors, true);
-    _sourceEntry.setValueIncremental(PARSED_UNIT1, _oldUnit, false);
     _sourceEntry.setValueIncremental(PARSED_UNIT, _oldUnit, false);
-    _sourceEntry.setValueIncremental(RESOLVE_DIRECTIVES_ERRORS, _newParseErrors, true);
     // referenced names
     ReferencedNames referencedNames = new ReferencedNames(_unitSource);
     new ReferencedNamesBuilder(referencedNames).build(_oldUnit);