Update repo to use dart2js from pkg/compiler.

pkg/compiler/samples/jsonify/jsonify.dart

Index: pkg/compiler/samples/jsonify/jsonify.dart
diff --git a/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart b/pkg/compiler/samples/jsonify/jsonify.dart
similarity index 84%
copy from sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart
copy to pkg/compiler/samples/jsonify/jsonify.dart
index 930636833d9fff8822c9cfb86aed832290a4ea77..bb0c41370193c99c131eed32e9902425572e28e7 100644
--- a/sdk/lib/_internal/compiler/samples/jsonify/jsonify.dart
+++ b/pkg/compiler/samples/jsonify/jsonify.dart
@@ -7,22 +7,22 @@ import 'dart:convert';
 
 import 'dart:mirrors';
 
-import '../../../libraries.dart'
+import 'package:_internal/libraries.dart'
     show LIBRARIES, LibraryInfo;
 
-import '../../implementation/mirrors/analyze.dart'
+import '../../lib/src/mirrors/analyze.dart'
     show analyze;
-import '../../implementation/mirrors/dart2js_mirrors.dart'
+import '../../lib/src/mirrors/dart2js_mirrors.dart'
     show BackDoor;
 
-import '../../implementation/filenames.dart';
-import '../../implementation/source_file.dart';
-import '../../implementation/source_file_provider.dart';
-import '../../implementation/util/uri_extras.dart';
+import '../../lib/src/filenames.dart';
+import '../../lib/src/source_file.dart';
+import '../../lib/src/source_file_provider.dart';
+import '../../lib/src/util/uri_extras.dart';
 
-const DART2JS = '../../implementation/dart2js.dart';
-const DART2JS_MIRROR = '../../implementation/mirrors/dart2js_mirror.dart';
-const SDK_ROOT = '../../../../../';
+const DART2JS = '../../lib/src/dart2js.dart';
+const DART2JS_MIRROR = '../../lib/src/mirrors/dart2js_mirror.dart';
+const SDK_ROOT = '../../../../sdk/';
 
 bool isPublicDart2jsLibrary(String name) {
   return !name.startsWith('_') && LIBRARIES[name].isDart2jsLibrary;