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

pkg/analyzer/test/src/summary/flat_buffers_test.dart

Index: pkg/analyzer/test/src/summary/flat_buffers_test.dart
diff --git a/pkg/analyzer/test/src/summary/flat_buffers_test.dart b/pkg/analyzer/test/src/summary/flat_buffers_test.dart
index 112f2bbea783e3a135527e1ab7db452851b46f5f..2498fca5370fafcb93bfd620f2cada308541947d 100644
--- a/pkg/analyzer/test/src/summary/flat_buffers_test.dart
+++ b/pkg/analyzer/test/src/summary/flat_buffers_test.dart
@@ -7,12 +7,13 @@ library test.src.summary.flat_buffers_test;
 import 'dart:typed_data';
 
 import 'package:analyzer/src/summary/flat_buffers.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 main() {
-  groupSep = ' | ';
-  defineReflectiveTests(BuilderTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(BuilderTest);
+  });
 }
 
 @reflectiveTest