Add the generator and the generated files

pkg/analyzer_plugin/tool/spec/check_all_test.dart

Index: pkg/analyzer_plugin/tool/spec/check_all_test.dart
diff --git a/pkg/analyzer_plugin/tool/spec/check_all_test.dart b/pkg/analyzer_plugin/tool/spec/check_all_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..694b0fa61b87ef0bca0d7a33921b4762e2c32943
--- /dev/null
+++ b/pkg/analyzer_plugin/tool/spec/check_all_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 'dart:io';
+
+import 'package:analyzer/src/codegen/tools.dart';
+import 'package:path/path.dart';
+
+import 'generate_all.dart';
+
+/**
+ * Check that all targets have been code generated.  If they haven't tell the
+ * user to run generate_all.dart.
+ */
+main() {
+  String script = Platform.script.toFilePath(windows: Platform.isWindows);
+  String pkgPath = normalize(join(dirname(script), '..', '..'));
+  GeneratedContent.checkAll(pkgPath, 'tool/spec/generate_all.dart', allTargets);
+}