[heycam/webidl] Clarify nullable types for constants (#447)

Fixes #446.

/cc @SaschaNaz
You can view, comment on, or merge this pull request online at:

  https://github.com/heycam/webidl/pull/447

-- Commit Summary --

  * Clarify nullable types for constants

-- File Changes --

    M index.bs (9)

-- Patch Links --

https://github.com/heycam/webidl/pull/447.patch
https://github.com/heycam/webidl/pull/447.diff

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/heycam/webidl/pull/447