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

pkg/analyzer/test/src/task/incremental_element_builder_test.dart

Index: pkg/analyzer/test/src/task/incremental_element_builder_test.dart
diff --git a/pkg/analyzer/test/src/task/incremental_element_builder_test.dart b/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
index b5765ebc5f495f3d4a84e461a5a1e0d986d3e23c..990b973b37ee67b8762983c496bf1a579f3a135a 100644
--- a/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
+++ b/pkg/analyzer/test/src/task/incremental_element_builder_test.dart
@@ -14,15 +14,17 @@ import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/task/dart.dart';
 import 'package:analyzer/src/task/incremental_element_builder.dart';
 import 'package:analyzer/task/dart.dart';
+import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:unittest/unittest.dart';
 
 import '../../utils.dart';
 import '../context/abstract_context.dart';
 
 main() {
   initializeTestEnvironment();
-  defineReflectiveTests(IncrementalCompilationUnitElementBuilderTest);
+  defineReflectiveSuite(() {
+    defineReflectiveTests(IncrementalCompilationUnitElementBuilderTest);
+  });
 }
 
 @reflectiveTest