In `wp_list_bookmarks()`, `$categorize` should now be `$r['categorize]`.

See #22400.


git-svn-id: https://develop.svn.wordpress.org/trunk@28501 602fd350-edb4-49c9-b593-d223f7449a82
Add access modifiers to methods/members in `WP_Object_Cache`. Add a magic `__get()` method for BC.

See #27881.


git-svn-id: https://develop.svn.wordpress.org/trunk@28502 602fd350-edb4-49c9-b593-d223f7449a82
Add access modifiers to methods/members in `WP_Roles`. Add a magic `__call()` method for BC.

See #27881, #22234.


git-svn-id: https://develop.svn.wordpress.org/trunk@28503 602fd350-edb4-49c9-b593-d223f7449a82