Support serialization of WorldImpact

pkg/compiler/lib/src/ssa/builder.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.
 
 import 'dart:collection';
 
 import 'package:js_runtime/shared/embedded_names.dart';
 
 import '../closure.dart';
 import '../common.dart';
@@ skipping 5986 matching lines @@
         nativeBehavior.typesReturned.add(constructor.enclosingClass.thisType);
       }
       return new HForeignCode(
           codeTemplate,
           backend.dynamicType, filteredArguments,
           nativeBehavior: nativeBehavior)
         ..sourceInformation = sourceInformation;
     }
     var target = new HForeignCode(js.js.parseForeignJS(
             "${backend.namer.fixedBackendPath(element)}."
-            "${backend.getFixedBackendName(element)}"),
+            "${backend.nativeData.getFixedBackendName(element)}"),
         backend.dynamicType,
         <HInstruction>[]);
     add(target);
     // Strip off trailing arguments that were not specified.
     // we could assert that the trailing arguments are all null.
     // TODO(jacobr): rewrite named arguments to an object literal matching
     // the factory constructor case.
     arguments = arguments.where((arg) => arg != null).toList();
     var inputs = <HInstruction>[target]..addAll(arguments);
 
@@ skipping 3305 matching lines @@
   const _LoopTypeVisitor();
   int visitNode(ast.Node node) => HLoopBlockInformation.NOT_A_LOOP;
   int visitWhile(ast.While node) => HLoopBlockInformation.WHILE_LOOP;
   int visitFor(ast.For node) => HLoopBlockInformation.FOR_LOOP;
   int visitDoWhile(ast.DoWhile node) => HLoopBlockInformation.DO_WHILE_LOOP;
   int visitAsyncForIn(ast.AsyncForIn node) => HLoopBlockInformation.FOR_IN_LOOP;
   int visitSyncForIn(ast.SyncForIn node) => HLoopBlockInformation.FOR_IN_LOOP;
   int visitSwitchStatement(ast.SwitchStatement node) =>
       HLoopBlockInformation.SWITCH_CONTINUE_LOOP;
 }