Generate outline without transformations in patched_sdk, use it for unit tests

pkg/compiler/lib/src/kernel/fasta_support.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.
 
 /// Additions to Fasta for generating .dill (Kernel IR) files with dart2js patch
 /// files and native hooks.
 library compiler.src.kernel.fasta_support;
 
 // TODO(sigmund): get rid of this file. Fasta should be agnostic of the
 // target platform, at which point this should not be necessary. In particular,
@@ skipping 16 matching lines @@
 import 'package:front_end/src/fasta/kernel/kernel_target.dart'
     show KernelTarget;
 import 'package:front_end/src/fasta/loader.dart' show Loader;
 import 'package:front_end/src/fasta/parser/parser.dart' show optional;
 import 'package:front_end/src/fasta/scanner/token.dart' show Token;
 import 'package:front_end/src/fasta/ticker.dart' show Ticker;
 import 'package:front_end/src/fasta/translate_uri.dart' show TranslateUri;
 
 /// Generates a platform.dill file containing the compiled Kernel IR of the
 /// dart2js SDK.
-Future compilePlatform(Uri patchedSdk, Uri output, {Uri packages}) async {
-  Uri deps = Uri.base.resolveUri(new Uri.file("${output.toFilePath()}.d"));
+Future compilePlatform(Uri patchedSdk, Uri fullOutput,
+    {Uri outlineOutput, Uri packages}) async {
+  Uri deps = Uri.base.resolveUri(new Uri.file("${fullOutput.toFilePath()}.d"));
   TranslateUri uriTranslator = await TranslateUri.parse(
       PhysicalFileSystem.instance, patchedSdk, packages);
   var ticker = new Ticker(isVerbose: false);
   var dillTarget = new DillTargetForDart2js(ticker, uriTranslator);
   var kernelTarget =
       new KernelTargetForDart2js(dillTarget, uriTranslator, false);
 
   kernelTarget.read(Uri.parse("dart:core"));
   await dillTarget.writeOutline(null);
-  await kernelTarget.writeOutline(output);
+  await kernelTarget.writeOutline(outlineOutput);
 
   if (exitCode != 0) return null;
-  await kernelTarget.writeProgram(output);
-  await kernelTarget.writeDepsFile(output, deps);
+  await kernelTarget.writeProgram(fullOutput);
+  await kernelTarget.writeDepsFile(fullOutput, deps);
 }
 
 /// Extends the internal fasta [CompileTask] to use a dart2js-aware [DillTarget]
 /// and [KernelTarget].
 class Dart2jsCompileTask extends CompileTask {
   Dart2jsCompileTask(CompilerContext c, Ticker ticker) : super(c, ticker);
 
   @override
   DillTarget createDillTarget(TranslateUri uriTranslator) {
     return new DillTargetForDart2js(ticker, uriTranslator);
@@ skipping 79 matching lines @@
   'dart:_native_typed_data',
   'dart:_internal',
   'dart:_js_helper',
   'dart:_interceptors',
   'dart:_foreign_helper',
   'dart:_js_mirrors',
   'dart:_js_names',
   'dart:_js_embedded_names',
   'dart:_isolate_helper',
 ];