Add a create_posts check to _wp_translate_postdata(). Move the edit_post check...

Add a create_posts check to _wp_translate_postdata(). Move the edit_post check to the top of the function.

Props nacin
fixes #22417


git-svn-id: https://core.svn.wordpress.org/trunk@22950 1a063a9b-81f0-0310-95a4-ce76da25c4cd