Revert 6ad38498c8673f1fbe3e12c49b1cf590305676dd (PARSED_UNIT).

pkg/analyzer/tool/task_dependency_graph/tasks.dot

Index: pkg/analyzer/tool/task_dependency_graph/tasks.dot
diff --git a/pkg/analyzer/tool/task_dependency_graph/tasks.dot b/pkg/analyzer/tool/task_dependency_graph/tasks.dot
index 3d2565fec62b0f7ac42c24f2fb9ea7a3be4d6df2..feb61eb21d073400278bb84382b441b3e13cad3e 100644
--- a/pkg/analyzer/tool/task_dependency_graph/tasks.dot
+++ b/pkg/analyzer/tool/task_dependency_graph/tasks.dot
@@ -193,8 +193,6 @@ digraph G {
   MODIFICATION_TIME [shape=box]
   PARSED_UNIT -> BuildCompilationUnitElementTask
   PARSED_UNIT [shape=box]
-  PARSED_UNIT1 -> ResolveDirectivesTask
-  PARSED_UNIT1 [shape=box]
   PARSE_ERRORS -> dartErrorsForSource
   PARSE_ERRORS [shape=box]
   PENDING_ERRORS -> VerifyUnitTask
@@ -206,10 +204,17 @@ digraph G {
   PROPAGATED_VARIABLE -> PropagateVariableTypeTask
   PROPAGATED_VARIABLE -> PropagateVariableTypesInUnitTask
   PROPAGATED_VARIABLE [shape=box]
-  ParseDartTask -> PARSED_UNIT1
+  ParseDartTask -> EXPLICITLY_IMPORTED_LIBRARIES
+  ParseDartTask -> EXPORTED_LIBRARIES
+  ParseDartTask -> IMPORTED_LIBRARIES
+  ParseDartTask -> INCLUDED_PARTS
+  ParseDartTask -> LIBRARY_SPECIFIC_UNITS
+  ParseDartTask -> PARSED_UNIT
   ParseDartTask -> PARSE_ERRORS
   ParseDartTask -> REFERENCED_NAMES
+  ParseDartTask -> REFERENCED_SOURCES
   ParseDartTask -> SOURCE_KIND
+  ParseDartTask -> UNITS
   PartiallyResolveUnitReferencesTask -> CREATED_RESOLVED_UNIT7
   PartiallyResolveUnitReferencesTask -> INFERABLE_STATIC_VARIABLES_IN_UNIT
   PartiallyResolveUnitReferencesTask -> PROPAGABLE_VARIABLES_IN_UNIT
@@ -281,8 +286,6 @@ digraph G {
   RESOLVED_UNIT8 [shape=box]
   RESOLVED_UNIT9 -> ResolveInstanceFieldsInUnitTask
   RESOLVED_UNIT9 [shape=box]
-  RESOLVE_DIRECTIVES_ERRORS -> dartErrorsForSource
-  RESOLVE_DIRECTIVES_ERRORS [shape=box]
   RESOLVE_TYPE_BOUNDS_ERRORS -> LibraryUnitErrorsTask
   RESOLVE_TYPE_BOUNDS_ERRORS [shape=box]
   RESOLVE_TYPE_NAMES_ERRORS -> LibraryUnitErrorsTask
@@ -296,15 +299,6 @@ digraph G {
   ResolveConstantExpressionTask -> CONSTANT_EXPRESSION_RESOLVED
   ResolveDirectiveElementsTask -> CREATED_RESOLVED_UNIT2
   ResolveDirectiveElementsTask -> RESOLVED_UNIT2
-  ResolveDirectivesTask -> EXPLICITLY_IMPORTED_LIBRARIES
-  ResolveDirectivesTask -> EXPORTED_LIBRARIES
-  ResolveDirectivesTask -> IMPORTED_LIBRARIES
-  ResolveDirectivesTask -> INCLUDED_PARTS
-  ResolveDirectivesTask -> LIBRARY_SPECIFIC_UNITS
-  ResolveDirectivesTask -> PARSED_UNIT
-  ResolveDirectivesTask -> REFERENCED_SOURCES
-  ResolveDirectivesTask -> RESOLVE_DIRECTIVES_ERRORS
-  ResolveDirectivesTask -> UNITS
   ResolveInstanceFieldsInUnitTask -> CREATED_RESOLVED_UNIT10
   ResolveInstanceFieldsInUnitTask -> RESOLVED_UNIT10
   ResolveLibraryReferencesTask -> LIBRARY_ELEMENT9