Merge kernel closure conversion into the Dart SDK

pkg/kernel/test/type_propagation_dump.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.
 library kernel.type_propagation.dump;
 
 import 'package:kernel/kernel.dart';
 import 'package:kernel/text/ast_to_text.dart';
 import 'package:kernel/type_propagation/builder.dart';
 import 'package:kernel/type_propagation/solver.dart';
 import 'package:kernel/type_propagation/visualizer.dart';
@@ skipping 87 matching lines @@
     print('Printing graphviz dot files...');
     String filter = options['graph-filter'];
     new Directory(outputDir).createSync();
     void dumpMember(Member member) {
       if (filter != null && !'$member'.contains(filter)) return;
       String name = sanitizeFilename('$member');
       String path = '$outputDir/$name.dot';
       String dotCode = visualizer.dumpMember(member);
       new File(path).writeAsStringSync(dotCode);
     }
+
     for (var library in program.libraries) {
       library.members.forEach(dumpMember);
       for (var class_ in library.classes) {
         class_.members.forEach(dumpMember);
       }
     }
   }
 
   if (options['stats']) {
     var constraints = solver.constraints;
@@ skipping 60 matching lines @@
   return (amount / total * 100).toStringAsFixed(1) + '%';
 }
 
 String sanitizeFilename(String name) {
   return name
       .replaceAll('::', '.')
       .replaceAll('/', r'$div')
       .replaceAll('(', '')
       .replaceAll(')', '');
 }