Add ElementCodegenWorldBuilder

pkg/compiler/lib/src/ssa/builder_kernel.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 file.
 
 import 'package:kernel/ast.dart' as ir;
 
 import '../closure.dart';
 import '../common.dart';
-import '../common/codegen.dart' show CodegenRegistry, CodegenWorkItem;
+import '../common/codegen.dart' show CodegenRegistry;
 import '../common/names.dart';
 import '../common/tasks.dart' show CompilerTask;
 import '../compiler.dart';
 import '../constants/values.dart'
     show
         ConstantValue,
         InterceptorConstantValue,
         StringConstantValue,
         TypeConstantValue;
 import '../elements/elements.dart';
 import '../elements/entities.dart';
 import '../elements/resolution_types.dart';
 import '../io/source_information.dart';
 import '../js/js.dart' as js;
 import '../js_backend/backend.dart' show JavaScriptBackend;
+import '../js_backend/element_strategy.dart' show ElementCodegenWorkItem;
 import '../kernel/kernel.dart';
 import '../native/native.dart' as native;
 import '../resolution/tree_elements.dart';
 import '../tree/nodes.dart' show Node;
 import '../types/masks.dart';
 import '../universe/selector.dart';
 import '../universe/side_effects.dart' show SideEffects;
 import '../universe/use.dart' show DynamicUse;
 import '../world.dart';
 import 'graph_builder.dart';
@@ skipping 11 matching lines @@
 class SsaKernelBuilderTask extends CompilerTask {
   final JavaScriptBackend backend;
   final SourceInformationStrategy sourceInformationFactory;
 
   String get name => 'SSA kernel builder';
 
   SsaKernelBuilderTask(JavaScriptBackend backend, this.sourceInformationFactory)
       : backend = backend,
         super(backend.compiler.measurer);
 
-  HGraph build(CodegenWorkItem work, ClosedWorld closedWorld) {
+  HGraph build(ElementCodegenWorkItem work, ClosedWorld closedWorld) {
     return measure(() {
       MemberElement element = work.element.implementation;
       Kernel kernel = backend.kernelTask.kernel;
       KernelSsaBuilder builder = new KernelSsaBuilder(
           element,
           work.resolvedAst,
           backend.compiler,
           closedWorld,
           work.registry,
           sourceInformationFactory,
@@ skipping 3346 matching lines @@
     enterBlock.setBlockFlow(
         new HTryBlockInformation(
             kernelBuilder.wrapStatementGraph(bodyGraph),
             exception,
             kernelBuilder.wrapStatementGraph(catchGraph),
             kernelBuilder.wrapStatementGraph(finallyGraph)),
         exitBlock);
     kernelBuilder.inTryStatement = previouslyInTryStatement;
   }
 }