Switch analysis_server to use 'package:test'.

pkg/analysis_server/test/integration/analysis/navigation_test.dart

 // Copyright (c) 2014, 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 test.integration.analysis.navigation;
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
 import '../integration_tests.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(AnalysisNavigationTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(AnalysisNavigationTest);
+  });
 }
 
 @reflectiveTest
 class AnalysisNavigationTest extends AbstractAnalysisServerIntegrationTest {
   test_navigation() {
     String pathname1 = sourcePath('test1.dart');
     String text1 = r'''
 library foo;
 
 import 'dart:async';
@@ skipping 50 matching lines @@
         for (NavigationRegion region in regions) {
           if (region.offset <= index && index < region.offset + region.length) {
             expect(region.targets, hasLength(1));
             int targetIndex = region.targets[0];
             return targets[targetIndex];
           }
         }
         fail('No element found for index $index');
         return null;
       }
+
       void checkLocal(
           String source, String expectedTarget, ElementKind expectedKind) {
         int sourceIndex = text1.indexOf(source);
         int targetIndex = text1.indexOf(expectedTarget);
         NavigationTarget element = findTargetElement(sourceIndex);
         expect(targetFiles[element.fileIndex], equals(pathname1));
         expect(element.offset, equals(targetIndex));
         expect(element.kind, equals(expectedKind));
       }
+
       void checkRemote(String source, String expectedTargetRegexp,
           ElementKind expectedKind) {
         int sourceIndex = text1.indexOf(source);
         NavigationTarget element = findTargetElement(sourceIndex);
         expect(targetFiles[element.fileIndex], matches(expectedTargetRegexp));
         expect(element.kind, equals(expectedKind));
       }
+
       // TODO(paulberry): will the element type 'CLASS_TYPE_ALIAS' ever appear
       // as a navigation target?
       checkLocal('Class<int>', 'Class<TypeParameter>', ElementKind.CLASS);
       checkRemote(
           "'test2.dart';", r'test2.dart$', ElementKind.COMPILATION_UNIT);
       checkLocal(
           'Class<int>.constructor',
           'constructor(); /* constructor declaration */',
           ElementKind.CONSTRUCTOR);
       checkLocal(
@@ skipping 12 matching lines @@
       checkLocal('method();', 'method() {', ElementKind.METHOD);
       checkLocal('parameter());', 'parameter) {', ElementKind.PARAMETER);
       checkLocal('field = 1', 'field;', ElementKind.SETTER);
       checkLocal('topLevelVariable;', 'topLevelVariable;',
           ElementKind.TOP_LEVEL_VARIABLE);
       checkLocal(
           'TypeParameter field;', 'TypeParameter>', ElementKind.TYPE_PARAMETER);
     });
   }
 }