Split "_Driver" tests to separate test files.

pkg/analyzer/test/generated/error_suppression_driver_test.dart

Index: pkg/analyzer/test/generated/error_suppression_driver_test.dart
diff --git a/pkg/analyzer/test/generated/error_suppression_driver_test.dart b/pkg/analyzer/test/generated/error_suppression_driver_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..6e2273da81473844bcc210dba2c7650769fb1efd
--- /dev/null
+++ b/pkg/analyzer/test/generated/error_suppression_driver_test.dart
@@ -0,0 +1,20 @@
+// Copyright (c) 2017, 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.
+
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import 'error_suppression_test.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(ErrorSuppressionTest);
+    defineReflectiveTests(ErrorSuppressionTest_Driver);
+  });
+}
+
+@reflectiveTest
+class ErrorSuppressionTest_Driver extends ErrorSuppressionTest {
+  @override
+  bool get enableNewAnalysisDriver => true;
+}