In r285698 I added a new 'toNSData' inline for BufferSource, which is used in WebAuthenticatorCoordinatorProxy.mm. At the last minute, we decided to not export the function without its namespace but forgot to update WebAuthenticatorCoordinatorProxy.mm with that change. I missed this locally because I didn't do a clean build.
<rdar://problem/85347865>
Created attachment 444083 [details] Patch
Committed r285736 (244195@main): <https://commits.webkit.org/244195@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 444083 [details].