Allow authenticated users to read the contents of password protected posts if they have the `edit_post` meta capability for the post.
Props xknown, zieladam, peterwilsoncc, swissspidy, timothyblynjacobs.
Built from https://develop.svn.wordpress.org/trunk@50717
git-svn-id: http://core.svn.wordpress.org/trunk@50326 1a063a9b-81f0-0310-95a4-ce76da25c4cd