We renamed many classes to be namespaced, but the `@covers` and
`@coversDefaultClass` annotations weren't updated properly.
PHPUnit didn't support short cover annotations with `use` statements,
these didn't trigger any errors yet, because they are class alias.
This patch is populated by a modified version of PhpunitAnnotationsSniff.
Change-Id: I6c602290a30099239b17d2dc0d67b1488b4eaeeb
Deprecate AuthManager::checkAccountCreatePermissions in favour of
::authorizeCreateAccount, for full permissions checks and
::probablyCanCreateAccount, for quick permissions checks.
Update SpecialCreateAccount to use the appropriate checks, and
add SpecialCreateAccountTest.
Bug: T283265
Change-Id: I385f2b56ef61f64a4c61e9c97683bef564892dce