Regenerate pub sources.

sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart

Index: sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart b/sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart
index 6ad75eb31bb0ce0939d22d8d513b6a5e500c1f06..6d3fb7e9204aa084004020bbbcee2202e4c9f598 100644
--- a/sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart
+++ b/sdk/lib/_internal/pub_generated/test/dart2js/does_not_support_invalid_option_test.dart
@@ -1,7 +1,12 @@
+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.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 '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
+
 main() {
   initConfig();
   integration("doesn't support an invalid dart2js option", () {
@@ -13,6 +18,9 @@ main() {
             }
           }]
       })]).create();
+
+    // TODO(nweiz): This should provide more context about how the option got
+    // passed to dart2js. See issue 16008.
     var pub = startPubServe();
     pub.stderr.expect('Unrecognized dart2js option "invalidOption".');
     pub.shouldExit(exit_codes.DATA);