Serve DART_ERRORS from incremental cache.

pkg/analyzer/lib/src/summary/package_bundle_reader.dart

 import 'dart:io' as io;
 
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/dart/element/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/java_io.dart';
 import 'package:analyzer/src/generated/resolver.dart';
 import 'package:analyzer/src/generated/source.dart';
@@ skipping 99 matching lines @@
   bool exists() => true;
 
   @override
   String toString() => uri.toString();
 }
 
 /**
  * The [ResultProvider] that provides results using summary resynthesizer.
  */
 abstract class ResynthesizerResultProvider extends ResultProvider {
-  final InternalAnalysisContext _context;
+  final InternalAnalysisContext context;
   final SummaryDataStore _dataStore;
 
   _FileBasedSummaryResynthesizer _resynthesizer;
   ResynthesizerResultProvider _sdkProvider;
 
-  ResynthesizerResultProvider(this._context, this._dataStore);
+  ResynthesizerResultProvider(this.context, this._dataStore);
 
   SummaryResynthesizer get resynthesizer => _resynthesizer;
 
   /**
    * Add a new [bundle] to the resynthesizer.
    */
   void addBundle(String path, PackageBundle bundle) {
     _dataStore.addBundle(path, bundle);
   }
 
@@ skipping 90 matching lines @@
   }
 
   /**
    * Create the [resynthesizer] instance.
    *
    * Subclasses must call this method in their constructors.
    */
   void createResynthesizer(
       InternalAnalysisContext sdkContext, TypeProvider typeProvider) {
     // Set the type provider to prevent the context from computing it.
-    _context.typeProvider = typeProvider;
+    context.typeProvider = typeProvider;
     // Create a chained resynthesizer.
     _sdkProvider = sdkContext?.resultProvider;
     _resynthesizer = new _FileBasedSummaryResynthesizer(
         _sdkProvider?.resynthesizer,
-        _context,
+        context,
         typeProvider,
-        _context.sourceFactory,
-        _context.analysisOptions.strongMode,
+        context.sourceFactory,
+        context.analysisOptions.strongMode,
         _dataStore);
   }
 
   /**
    * Return `true` if this result provider can provide a result for the
    * given [source].  The provider must ensure that [addBundle] is invoked for
    * every bundle that would be required to provide results for the [source].
    */
   bool hasResultsForSource(Source source);
 }
@@ skipping 91 matching lines @@
  * also provides [summaryPath].
  */
 class _InSummaryFallbackSource extends FileBasedSource
     implements InSummarySource {
   @override
   final String summaryPath;
 
   _InSummaryFallbackSource(JavaFile file, Uri uri, this.summaryPath)
       : super(file, uri);
 }