Fix for using the strong mode SDK summary.

pkg/analyzer_cli/lib/src/package_analyzer.dart

Index: pkg/analyzer_cli/lib/src/package_analyzer.dart
diff --git a/pkg/analyzer_cli/lib/src/package_analyzer.dart b/pkg/analyzer_cli/lib/src/package_analyzer.dart
index ec2cfef606b5c6cfd047658f1b784bcda0196002..51cacf2a13c421697a1a35e62f59265d221c6ef3 100644
--- a/pkg/analyzer_cli/lib/src/package_analyzer.dart
+++ b/pkg/analyzer_cli/lib/src/package_analyzer.dart
@@ -342,11 +342,9 @@ class PackageAnalyzer {
 
   void _createContext() {
     DirectoryBasedDartSdk sdk = DirectoryBasedDartSdk.defaultSdk;
-    sdk.useSummary = true;
 
     // Create the context.
     context = AnalysisEngine.instance.createAnalysisContext();
-    context.typeProvider = sdk.context.typeProvider;
     context.sourceFactory = new SourceFactory(<UriResolver>[
       new DartUriResolver(sdk),
       new InSummaryPackageUriResolver(options.packageSummaryInputs),
@@ -362,7 +360,9 @@ class PackageAnalyzer {
     Driver.setAnalysisContextOptions(
         context, options, (AnalysisOptionsImpl contextOptions) {});
 
-    // Set the result provider.
+    // Configure using summaries.
+    sdk.useSummary = true;
+    context.typeProvider = sdk.context.typeProvider;
     context.resultProvider =
         new InputPackagesResultProvider(context, options.packageSummaryInputs);
   }