tree f8968897d7b1892927b17edcbc15f0ce46c37353
parent 38920c95854fc2cf305d725bf8bacf93cd008b1f
author Nicholas Shahan <nshahan@google.com> 1633474662 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org> 1633474662 +0000

[ddc] Migrate module_metadata to null safety

* Migrate the library and tests.
* Update comments per effective dart recommendations.

Change-Id: Ibc8da1fe68c977fb3c084208b96734354ad2705b
Issue: https://github.com/dart-lang/sdk/issues/46617
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/215122
Reviewed-by: Anna Gringauze <annagrin@google.com>
Commit-Queue: Nicholas Shahan <nshahan@google.com>