Rename Target.writeOutline() into computeOutline(), add separate KernelTarget.writeOutline().

pkg/kernel/test/interpreter/suite.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.md file.
 
 library test.kernel.closures.suite;
 
 import 'dart:async' show Future;
 
 import 'dart:io' show File;
 
@@ skipping 66 matching lines @@
     Ticker ticker = new Ticker();
     DillTarget dillTarget = new DillTarget(ticker, context.uriTranslator);
     platform.unbindCanonicalNames();
     dillTarget.loader.appendLibraries(platform);
     KernelTarget sourceTarget = new KernelTarget(PhysicalFileSystem.instance,
         dillTarget, context.uriTranslator, context.strongMode);
 
     Program p;
     try {
       sourceTarget.read(description.uri);
-      await dillTarget.writeOutline(null);
-      await sourceTarget.writeOutline(null);
+      await dillTarget.computeOutline();
+      await sourceTarget.computeOutline();
       p = await sourceTarget.writeProgram(null);
     } on InputError catch (e, s) {
       return fail(null, e.error, s);
     }
     return pass(p);
   }
 }
 
 class Interpret extends Step<Program, EvaluationLog, InterpreterContext> {
   const Interpret();
@@ skipping 49 matching lines @@
   final Uri uri;
 
   /// Evaluated program log.
   final String log;
 
   EvaluationLog(this.uri, this.log);
 }
 
 main(List<String> arguments) =>
     runMe(arguments, InterpreterContext.create, "testing.json");