Merge CommonElements and BackendHelpers!

pkg/compiler/lib/src/common/names.dart

 // Copyright (c) 2015, 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 containing identifier, names, and selectors commonly used through
 /// the compiler.
 library dart2js.common.names;
 
 import '../elements/elements.dart' show Name, PublicName;
 import '../universe/call_structure.dart' show CallStructure;
@@ skipping 183 matching lines @@
   static final Uri dart_svg = new Uri(scheme: 'dart', path: 'svg');
 
   /// The URI for 'dart:web_audio'.
   static final Uri dart_web_audio = new Uri(scheme: 'dart', path: 'web_audio');
 
   /// The URI for 'dart:web_gl'.
   static final Uri dart_web_gl = new Uri(scheme: 'dart', path: 'web_gl');
 
   /// The URI for 'dart:web_sql'.
   static final Uri dart_web_sql = new Uri(scheme: 'dart', path: 'web_sql');
+
+  /// The URI for 'dart:_js_helper'.
+  static final Uri dart__js_helper =
+      new Uri(scheme: 'dart', path: '_js_helper');
+
+  /// The URI for 'dart:_interceptors'.
+  static final Uri dart__interceptors =
+      new Uri(scheme: 'dart', path: '_interceptors');
+
+  /// The URI for 'dart:_foreign_helper'.
+  static final Uri dart__foreign_helper =
+      new Uri(scheme: 'dart', path: '_foreign_helper');
+
+  /// The URI for 'dart:_js_mirrors'.
+  static final Uri dart__js_mirrors =
+      new Uri(scheme: 'dart', path: '_js_mirrors');
+
+  /// The URI for 'dart:_js_names'.
+  static final Uri dart__js_names = new Uri(scheme: 'dart', path: '_js_names');
+
+  /// The URI for 'dart:_js_embedded_names'.
+  static final Uri dart__js_embedded_names =
+      new Uri(scheme: 'dart', path: '_js_embedded_names');
+
+  /// The URI for 'dart:_isolate_helper'.
+  static final Uri dart__isolate_helper =
+      new Uri(scheme: 'dart', path: '_isolate_helper');
+
+  /// The URI for 'package:js'.
+  static final Uri package_js = new Uri(scheme: 'package', path: 'js/js.dart');
 }