Store the result of type inference in summaries.

pkg/analyzer/test/src/summary/prelinker_test.dart

 // Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library analyzer.test.src.summary.prelinker_test;
 
 import 'package:analyzer/dart/element/element.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analyzer/src/summary/format.dart';
@@ skipping 19 matching lines @@
   final Map<String, UnlinkedPublicNamespace> uriToPublicNamespace =
       <String, UnlinkedPublicNamespace>{};
 
   @override
   bool get expectAbsoluteUrisInDependencies => false;
 
   @override
   bool get skipFullyLinkedData => true;
 
   @override
+  bool get strongMode => false;
+
+  @override
   Source addNamedSource(String filePath, String contents) {
     Source source = super.addNamedSource(filePath, contents);
     uriToPublicNamespace[absUri(filePath)] =
         computePublicNamespaceFromText(contents, source);
     return source;
   }
 
   String resolveToAbsoluteUri(LibraryElement library, String relativeUri) {
     Source resolvedSource =
         analysisContext.sourceFactory.resolveUri(library.source, relativeUri);
@@ skipping 30 matching lines @@
         fail('Prelinker unexpectedly requested namespace for "$relativeUri"'
             ' (resolves to "$absoluteUri").'
             '  Namespaces available: ${uriToPublicNamespace.keys}');
       }
       return namespace;
     }
     linked = new LinkedLibrary.fromBuffer(
         prelink(unlinkedUnits[0], getPart, getImport).toBuffer());
   }
 }