Switch analyzer_cli to 'package:test'.

pkg/analyzer_cli/test/error_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 analyzer_cli.test.error;
 
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 
 import 'utils.dart';
 
 void main() {
   group('error', () {
     test("a valid Dart file doesn't throw any errors", () {
       expect(errorsForFile('void main() => print("Hello, world!");'), isNull);
     });
 
     test("an empty Dart file doesn't throw any errors", () {
       expect(errorsForFile(''), isNull);
     });
 
     test("an error on the first line", () {
-      expect(errorsForFile('void foo;\n'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('void foo;\n'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
 
     test("an error on the last line", () {
-      expect(errorsForFile('\nvoid foo;'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('\nvoid foo;'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
 
     test("an error in the middle", () {
-      expect(errorsForFile('\nvoid foo;\n'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('\nvoid foo;\n'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
 
     var veryLongString = new List.filled(107, ' ').join('');
 
     test("an error at the end of a very long line", () {
-      expect(errorsForFile('$veryLongString     void foo;'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('$veryLongString     void foo;'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
 
     test("an error at the beginning of a very long line", () {
-      expect(errorsForFile('void foo;     $veryLongString'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('void foo;     $veryLongString'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
 
     test("an error in the middle of a very long line", () {
-      expect(errorsForFile('$veryLongString void foo;$veryLongString'), equals(
-          "Error in test.dart: Variables cannot have a type of 'void'\n"));
+      expect(
+          errorsForFile('$veryLongString void foo;$veryLongString'),
+          equals(
+              "Error in test.dart: Variables cannot have a type of 'void'\n"));
     });
   });
 }