Switch FE to use the libraries.json format.

pkg/front_end/test/src/incremental/kernel_driver_test.dart

 // Copyright (c) 2017, 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.
 
 import 'dart:async';
 
 import 'package:front_end/compiler_options.dart';
 import 'package:front_end/memory_file_system.dart';
 import 'package:front_end/src/base/performace_logger.dart';
 import 'package:front_end/src/base/processed_options.dart';
@@ skipping 632 matching lines @@
       expect(libraryUris, contains(shouldInclude));
     }
     for (var shouldExclude in excludes) {
       expect(libraryUris, isNot(contains(shouldExclude)));
     }
   }
 
   /// Create new [KernelDriver] instance and put it into the [driver] field.
   void _createDriver(
       {Map<String, Uri> packages, KernelDriverFileAddedFn fileAddedFn}) {
-    Map<String, Uri> dartLibraries = createSdkFiles(fileSystem);
-    var uriTranslator =
-        new UriTranslatorImpl(dartLibraries, {}, new MapPackages(packages));
+    var uriTranslator = new UriTranslatorImpl(
+        createSdkFiles(fileSystem), new MapPackages(packages));
     driver = new KernelDriver(
         new ProcessedOptions(new CompilerOptions()
           ..logger = new PerformanceLog(null)
           ..fileSystem = fileSystem
           ..byteStore = new MemoryByteStore()
           ..strongMode = true
           ..target = new NoneTarget(new TargetFlags(strongMode: true))),
         uriTranslator,
         fileAddedFn: fileAddedFn);
   }
@@ skipping 20 matching lines @@
         .writeLibraryFile(library);
     return buffer.toString();
   }
 
   /// Return the [Uri] for the given Posix [path].
   static Uri _folderUri(String path) {
     if (!path.endsWith('/')) path += '/';
     return Uri.parse('file://$path');
   }
 }