Switch 'analyzer' to 'package:test' and test_reflective_loader ^0.1.0.

pkg/analyzer/test/src/util/absolute_path_test.dart

Index: pkg/analyzer/test/src/util/absolute_path_test.dart
diff --git a/pkg/analyzer/test/src/util/absolute_path_test.dart b/pkg/analyzer/test/src/util/absolute_path_test.dart
index f8be96bc475871cd7ae56a241de2aa45d5f32e1b..75cd31ca8f89ebb346b7bdfa59b60c93140dfefb 100644
--- a/pkg/analyzer/test/src/util/absolute_path_test.dart
+++ b/pkg/analyzer/test/src/util/absolute_path_test.dart
@@ -5,15 +5,17 @@
 library analyzer.test.src.util.absolute_path_test;
 
 import 'package:analyzer/src/util/absolute_path.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(AbsolutePathContextPosixTest);
-  defineReflectiveTests(AbsolutePathContextWindowsTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(AbsolutePathContextPosixTest);
+    defineReflectiveTests(AbsolutePathContextWindowsTest);
+  });
 }
 
 @reflectiveTest