pkg/compiler: fix imports

pkg/compiler/lib/src/dart2js.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.
 
 library dart2js.cmdline;
 
 import 'dart:async' show EventSink, Future;
 import 'dart:convert' show UTF8, LineSplitter;
 import 'dart:io' show exit, File, FileMode, Platform, stdin, stderr;
 
 import 'package:package_config/discovery.dart' show findPackages;
 
 import '../compiler_new.dart' as api;
-import 'apiimpl.dart';
+import 'commandline_options.dart';
 import 'common/names.dart' show Uris;
-import 'commandline_options.dart';
 import 'filenames.dart';
 import 'io/source_file.dart';
 import 'null_compiler_output.dart';
 import 'options.dart' show CompilerOptions;
 import 'source_file_provider.dart';
 import 'util/command_line.dart';
 import 'util/uri_extras.dart';
 import 'util/util.dart' show stackTraceFilePrefix;
 
 const String LIBRARY_ROOT = '../../../../../sdk';
@@ skipping 968 matching lines @@
   @override
   void close() {
     // Do nothing.
   }
 
   @override
   void addError(errorEvent, [StackTrace stackTrace]) {
     // Ignore
   }
 }