b288fc61d6
Named optionals without defaults should be nullable (or we need default).
Fixes:
output: org-dartlang-sdk:///dart-sdk/lib/isolate/isolate.dart:340:15: Warning: Optional parameter 'packageRoot' doesn't have a default value and its type 'Uri' doesn't allow null.
- 'Uri' is from 'dart:core'.
Uri packageRoot,
^^^^^^^^^^^
org-dartlang-sdk:///dart-sdk/lib/isolate/isolate.dart:525:15: Warning: Optional parameter 'response' doesn't have a default value and its type 'Object' doesn't allow null.
- 'Object' is from 'dart:core'.
{Object response, int priority = immediate});
Change-Id: I040939a4c058275d5e083a85b84317d76f7a568b
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/135040
Reviewed-by: Siva Annamalai <asiva@google.com>
Commit-Queue: Vijay Menon <vsm@google.com>
Auto-Submit: Vijay Menon <vsm@google.com>