Align source mirrors with runtime mirrors.

tests/compiler/dart2js/package_root_test.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.
 
 // Test that the compiler can handle imports when package root has not been set.
 
 library dart2js.test.package_root;
 
 import 'package:expect/expect.dart';
 import "package:async_helper/async_helper.dart";
 import 'memory_source_file_helper.dart';
 
 import '../../../sdk/lib/_internal/compiler/implementation/dart2jslib.dart'
        show NullSink;
 
 import '../../../sdk/lib/_internal/compiler/compiler.dart'
        show DiagnosticHandler, Diagnostic;
 
 import 'dart:async';
 
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/mirrors.dart';
-import '../../../sdk/lib/_internal/compiler/implementation/mirrors/dart2js_mirror.dart';
-
 const MEMORY_SOURCE_FILES = const {
   'main.dart': '''
 
 import 'package:foo/foo.dart';
 
 main() {}
 ''',
 };
 
 void runCompiler(Uri main) {
@@ skipping 31 matching lines @@
     Expect.equals("Error: Cannot resolve 'package:foo/foo.dart'. "
                   "Package root has not been set.",
                   errors[0]);
   }));
 }
 
 void main() {
   runCompiler(Uri.parse('memory:main.dart'));
   runCompiler(Uri.parse('package:foo/foo.dart'));
 }