Revert "Use single InputPackagesResultProvider, without SdkSummaryResultProvider."

pkg/analyzer/lib/src/dart/sdk/sdk.dart

Index: pkg/analyzer/lib/src/dart/sdk/sdk.dart
diff --git a/pkg/analyzer/lib/src/dart/sdk/sdk.dart b/pkg/analyzer/lib/src/dart/sdk/sdk.dart
index 11b7e9bef3909ab659243121d4453c7d9da8737c..d66526e32e19f856ee50275338683d8be2d89b27 100644
--- a/pkg/analyzer/lib/src/dart/sdk/sdk.dart
+++ b/pkg/analyzer/lib/src/dart/sdk/sdk.dart
@@ -22,7 +22,7 @@ import 'package:analyzer/src/generated/parser.dart';
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/summary/idl.dart' show PackageBundle;
-import 'package:analyzer/src/summary/package_bundle_reader.dart';
+import 'package:analyzer/src/summary/summary_sdk.dart';
 import 'package:path/path.dart' as pathos;
 import 'package:yaml/yaml.dart';
 
@@ -89,12 +89,11 @@ abstract class AbstractDartSdk implements DartSdk {
       SourceFactory factory = new SourceFactory([new DartUriResolver(this)]);
       _analysisContext.sourceFactory = factory;
       if (_useSummary) {
+        bool strongMode = _analysisOptions?.strongMode ?? false;
         PackageBundle sdkBundle = getLinkedBundle();
         if (sdkBundle != null) {
-          SummaryDataStore dataStore = new SummaryDataStore([]);
-          dataStore.addBundle(null, sdkBundle);
-          _analysisContext.resultProvider =
-              new InputPackagesResultProvider(_analysisContext, dataStore);
+          _analysisContext.resultProvider = new SdkSummaryResultProvider(
+              _analysisContext, sdkBundle, strongMode);
         }
       }
     }