Remove dart2jslib.dart

tests/compiler/dart2js/expect_annotations_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.
 
 import 'package:expect/expect.dart';
 import 'package:async_helper/async_helper.dart';
-import 'package:compiler/src/dart2jslib.dart';
+import 'package:compiler/src/compiler.dart';
 import 'package:compiler/src/elements/elements.dart';
 import 'package:compiler/src/js_backend/js_backend.dart';
 import 'package:compiler/src/types/types.dart';
 import 'type_mask_test_helper.dart';
 import 'memory_compiler.dart';
 
 const Map MEMORY_SOURCE_FILES = const {
   'main.dart': r"""
 import 'package:expect/expect.dart';
 
@@ skipping 101 matching lines @@
          expectTrustTypeAnnotations: true,
          expectedParameterType: jsStringType,
          expectedReturnType: jsIntType);
     test('methodAssumeDynamicTrustTypeAnnotations',
          expectAssumeDynamic: true,
          expectTrustTypeAnnotations: true,
          expectedParameterType: coreStringType);
 
   });
 }