Move dart2js from sdk/lib/_internal/compiler to pkg/compiler

pkg/compiler/samples/darttags/darttags.dart

 // Copyright (c) 2013, 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.
 
 // Usage: Add the following to your .gclient file (found in the parent
 // of the "dart" in a gclient checkout of the Dart repositor).
 //
 // hooks = [
 //   {
 //     "pattern": ".",
 //     "action": [
 //       "dart/sdk/bin/dart",
-//       "dart/sdk/lib/_internal/compiler/samples/darttags/darttags.dart",
+//       "dart/sdk/pkg/compiler/samples/darttags/darttags.dart",
 //       "dart/TAGS"
 //     ],
 //   },
 // ]
 //
 // Modify .emacs to contain:
 //
 //      (setq tags-table-list
 //           '("DART_LOCATION/dart"))
 //
 // Where DART_LOCATION is the gclient directory where you found .gclient.
 
 import 'dart:io';
 
 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/mirrors/mirrors_util.dart' show nameOf;
+import '../../lib/src/mirrors/mirrors_util.dart' show nameOf;
 
-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_mirrors.dart';
-const SDK_ROOT = '../../../../../';
+const DART2JS = '../../lib/src/dart2js.dart';
+const DART2JS_MIRROR = '../../lib/src/mirrors/dart2js_mirrors.dart';
+const SDK_ROOT = '../../sdk/';
 
 bool isPublicDart2jsLibrary(String name) {
   return !name.startsWith('_') && LIBRARIES[name].isDart2jsLibrary;
 }
 
 var handler;
 RandomAccessFile output;
 Uri outputUri;
 
 main(List<String> arguments) {
@@ skipping 113 matching lines @@
 
     return new Definition(byte_offset, line_number, tag_definition_text);
   }
 
   void writeOn(StringBuffer buffer, String tagname) {
     buffer.write(
         '${tag_definition_text}\x7f${tagname}'
         '\x01${line_number},${byte_offset}\n');
   }
 }