Make it easier to run engine tests

pkg/analyzer/test/test_all.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.engine;
+
+import 'package:unittest/unittest.dart';
+
+import 'error_test.dart' as error;
+import 'file_system/test_all.dart' as file_system;
+import 'generated/test_all.dart' as generated;
+import 'options_test.dart' as options;
+import 'parse_compilation_unit_test.dart' as parse_compilation_unit;
+import 'source/test_all.dart' as source;
+
+
+/// Utility for manually running all tests.
+main() {
+  groupSep = ' | ';
+  group('file_system', () {

[scheglov, 2014/10/05 16:42:38]

Yet another copy-paste.

[Brian Wilkerson, 2014/10/05 22:21:37]

Done

+    error.main();
+    file_system.main();
+    generated.main();
+    options.main();
+    parse_compilation_unit.main();
+    source.main();
+  });
+}