Remove dart2jslib.dart

tests/compiler/dart2js/source_map_name_test.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 source_map_name_test;
 
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
-import 'package:compiler/src/dart2jslib.dart';
+import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/elements/elements.dart';
 import 'package:compiler/src/io/source_information.dart';
 import 'memory_compiler.dart';
 
 const String SOURCE = '''
 
 var toplevelField;
 void toplevelMethod() {}
 void toplevelAnonymous() {
   var foo = () {};
@@ skipping 137 matching lines @@
     checkName('Class.instanceLocal',
               ['Class.instanceLocal.localMethod']);
     checkName('Class.instanceNestedLocal',
               ['Class.instanceNestedLocal.localMethod',
                'Class.instanceNestedLocal.localMethod.<anonymous function>',
                'Class.instanceNestedLocal.localMethod.nestedLocalMethod']);
 
 
   });
 }