Stop using RESOLVED_UNIT_x for other libraries.

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 f38607e40b64e3e58221c281218108f391d272d8..baacc319e28a91a21529edaabadfdee9c0bb0c25 100644
--- a/pkg/analyzer/tool/task_dependency_graph/tasks.dot
+++ b/pkg/analyzer/tool/task_dependency_graph/tasks.dot
@@ -60,7 +60,6 @@ digraph G {
   EXPORTED_LIBRARIES -> ReadyLibraryElement6Task
   EXPORTED_LIBRARIES -> ReadyResolvedUnit10Task
   EXPORTED_LIBRARIES -> ReadyResolvedUnit11Task
-  EXPORTED_LIBRARIES -> ReadyResolvedUnitTask
   EXPORTED_LIBRARIES [shape=box]
   EXPORT_SOURCE_CLOSURE -> BuildExportNamespaceTask
   EXPORT_SOURCE_CLOSURE [shape=box]
@@ -77,7 +76,6 @@ digraph G {
   IMPORTED_LIBRARIES -> ReadyLibraryElement6Task
   IMPORTED_LIBRARIES -> ReadyResolvedUnit10Task
   IMPORTED_LIBRARIES -> ReadyResolvedUnit11Task
-  IMPORTED_LIBRARIES -> ReadyResolvedUnitTask
   IMPORTED_LIBRARIES -> ResolveUnitTypeNamesTask
   IMPORTED_LIBRARIES [shape=box]
   INCLUDED_PARTS -> BuildLibraryElementTask
@@ -188,15 +186,12 @@ digraph G {
   READY_LIBRARY_ELEMENT6 -> PropagateVariableTypesInLibraryClosureTask
   READY_LIBRARY_ELEMENT6 -> ReadyLibraryElement6Task
   READY_LIBRARY_ELEMENT6 [shape=box]
-  READY_RESOLVED_UNIT -> ReadyResolvedUnitTask
   READY_RESOLVED_UNIT -> ResolveLibraryTask
   READY_RESOLVED_UNIT -> VerifyUnitTask
   READY_RESOLVED_UNIT [shape=box]
   READY_RESOLVED_UNIT10 -> ReadyResolvedUnit10Task
-  READY_RESOLVED_UNIT10 -> ResolveLibraryReferencesTask
   READY_RESOLVED_UNIT10 [shape=box]
   READY_RESOLVED_UNIT11 -> ReadyResolvedUnit11Task
-  READY_RESOLVED_UNIT11 -> StrongModeVerifyUnitTask
   READY_RESOLVED_UNIT11 [shape=box]
   REFERENCED_NAMES [shape=box]
   RESOLVED_UNIT -> GenerateHintsTask