[dartdevc] Migrating dart:_foreign_helper to NNBD.

Markzipan · commit-bot@chromium.org · commit 74a57acfbe13 · 2019-11-22T01:03:33.000Z
Change-Id: I557d4a544f03f7aaf9985dc30d0671fc7aa603ae Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/125860 Reviewed-by: Sigmund Cherem <sigmund@google.com> Reviewed-by: Nicholas Shahan <nshahan@google.com> Commit-Queue: Mark Zhou <markzipan@google.com>
diff --git a/sdk_nnbd/lib/_internal/js_dev_runtime/private/foreign_helper.dart b/sdk_nnbd/lib/_internal/js_dev_runtime/private/foreign_helper.dart
@@ -2,8 +2,6 @@
 // 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.
 
-// @dart = 2.5
-
 library dart._foreign_helper;
 
 /**
@@ -108,7 +106,7 @@ library dart._foreign_helper;
  */
 // Add additional optional arguments if needed. The method is treated internally
 // as a variable argument method.
-T JS<T extends Object>(String typeDescription, String codeTemplate,
+T JS<T extends Object?>(String typeDescription, String codeTemplate,
     [arg0,
     arg1,
     arg2,
