make kerneltask an actual task

pkg/compiler/lib/src/js_backend/backend.dart

 // Copyright (c) 2012, 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 js_backend.backend;
 
 import 'dart:async' show Future;
 
 import 'package:js_runtime/shared/embedded_names.dart' as embeddedNames;
 
@@ skipping 54 matching lines @@
 import '../util/util.dart';
 import '../world.dart' show ClosedWorld;
 import 'backend_helpers.dart';
 import 'backend_impact.dart';
 import 'backend_serialization.dart' show JavaScriptBackendSerialization;
 import 'checked_mode_helpers.dart';
 import 'constant_handler_javascript.dart';
 import 'custom_elements_analysis.dart';
 import 'enqueuer.dart';
 import 'js_interop_analysis.dart' show JsInteropAnalysis;
-import 'kernel_task.dart';
+import '../kernel/task.dart';
 import 'lookup_map_analysis.dart' show LookupMapAnalysis;
 import 'namer.dart';
 import 'native_data.dart' show NativeData;
 import 'no_such_method_registry.dart';
 import 'patch_resolver.dart';
 import 'type_variable_handler.dart';
 
 part 'runtime_types.dart';
 
 const VERBOSE_OPTIMIZER_HINTS = false;
@@ skipping 383 matching lines @@
   /**
    * A set of members that are called from subclasses via `super`.
    */
   final Set<FunctionElement> aliasedSuperMembers =
       new Setlet<FunctionElement>();
 
   List<CompilerTask> get tasks {
     List<CompilerTask> result = functionCompiler.tasks;
     result.add(emitter);
     result.add(patchResolverTask);
+    result.add(kernelTask);
     return result;
   }
 
   final RuntimeTypes rti;
   final RuntimeTypesEncoder rtiEncoder;
 
   /// True if a call to preserveMetadataMarker has been seen.  This means that
   /// metadata must be retained for dart:mirrors to work correctly.
   bool mustRetainMetadata = false;
 
@@ skipping 133 matching lines @@
         frontend = new JSFrontendAccess(compiler),
         super(compiler) {
     emitter = new CodeEmitterTask(
         compiler, namer, generateSourceMap, useStartupEmitter);
     typeVariableHandler = new TypeVariableHandler(compiler);
     customElementsAnalysis = new CustomElementsAnalysis(this);
     lookupMapAnalysis = new LookupMapAnalysis(this, reporter);
     jsInteropAnalysis = new JsInteropAnalysis(this);
 
     noSuchMethodRegistry = new NoSuchMethodRegistry(this);
-    kernelTask = new KernelTask(this);
+    kernelTask = new KernelTask(compiler);
     constantCompilerTask = new JavaScriptConstantTask(compiler);
     impactTransformer = new JavaScriptImpactTransformer(this);
     patchResolverTask = new PatchResolverTask(compiler);
     functionCompiler =
         new SsaFunctionCompiler(this, sourceInformationStrategy, useKernel);
     serialization = new JavaScriptBackendSerialization(this);
     backendClasses = new JavaScriptBackendClasses(helpers);
   }
 
   ConstantSystem get constantSystem => constants.constantSystem;
@@ skipping 2644 matching lines @@
   ClassElement get mapImplementation => helpers.mapLiteralClass;
   ClassElement get constMapImplementation => helpers.constMapLiteralClass;
   ClassElement get typeImplementation => helpers.typeLiteralClass;
   ClassElement get boolImplementation => helpers.jsBoolClass;
   ClassElement get nullImplementation => helpers.jsNullClass;
   ClassElement get syncStarIterableImplementation => helpers.syncStarIterable;
   ClassElement get asyncFutureImplementation => helpers.futureImplementation;
   ClassElement get asyncStarStreamImplementation => helpers.controllerStream;
   ClassElement get functionImplementation => helpers.coreClasses.functionClass;
 }