Fix frontend tests after bac83e0973f981d4b4e61e90cb7f6fb5ceb89206

pkg/front_end/test/fasta/testing/suite.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.md file.
 
 library fasta.testing.suite;
 
 import 'dart:async' show Future;
 
 import 'dart:io' show File;
 
@@ skipping 174 matching lines @@
 
   bool get isRuntime => true;
 
   Future<Result<int>> run(Uri uri, FastaContext context) async {
     if (context.platformUri == null) {
       throw "Executed `Run` step before initializing the context.";
     }
     File generated = new File.fromUri(uri);
     StdioProcess process;
     try {
-      var platformDill = context.platformUri.toFilePath();
-      var args = ['--platform=$platformDill', generated.path, "Hello, World!"];
+      var sdkPath = context.sdk.toFilePath();
+      var args = [
+        '--kernel-binaries=$sdkPath',
+        generated.path,
+        "Hello, World!"
+      ];
       process = await StdioProcess.run(context.vm.toFilePath(), args);
       print(process.output);
     } finally {
       generated.parent.delete(recursive: true);
     }
     return process.toResult();
   }
 }
 
 class Outline extends Step<TestDescription, Program, FastaContext> {
@@ skipping 105 matching lines @@
     }
   }
 
   void performGlobalTransformations(CoreTypes coreTypes, Program program,
       {void logger(String msg)}) {
     if (enabled) {
       super.performGlobalTransformations(coreTypes, program, logger: logger);
     }
   }
 }