Issue 24538. Route SDK results into SDK context DartWorkManager.

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 9560bfffe534803666e3d3fd4d6b5c862e3da6f5..7ec28c5793280c0b899a70607590afc5c110eea5 100644
--- a/pkg/analyzer/lib/src/generated/engine.dart
+++ b/pkg/analyzer/lib/src/generated/engine.dart
@@ -18,6 +18,7 @@ import 'package:analyzer/src/plugin/options_plugin.dart';
 import 'package:analyzer/src/services/lint.dart';
 import 'package:analyzer/src/task/manager.dart';
 import 'package:analyzer/task/dart.dart';
+import 'package:analyzer/task/model.dart' as newContext;
 import 'package:analyzer/task/model.dart';
 import 'package:html/dom.dart' show Document;
 import 'package:plugin/manager.dart';
@@ -1568,6 +1569,11 @@ class AnalysisContextImpl implements InternalAnalysisContext {
   }
 
   @override
+  List<newContext.WorkManager> get workManagers {
+    throw new NotImplementedException('In not task-based AnalysisContext.');
+  }
+
+  @override
   void addListener(AnalysisListener listener) {
     if (!_listeners.contains(listener)) {
       _listeners.add(listener);
@@ -9395,6 +9401,11 @@ abstract class InternalAnalysisContext implements AnalysisContext {
   TypeResolverVisitorFactory get typeResolverVisitorFactory;
 
   /**
+   * A list of all [WorkManager]s used by this context.
+   */
+  List<newContext.WorkManager> get workManagers;
+
+  /**
    * Return a list containing the sources of the libraries that are exported by
    * the library with the given [source]. The list will be empty if the given
    * source is invalid, if the given source does not represent a library, or if