Admin globals:

* Declare `$wp_importers` as a global in `admin.php`
* Declare `$post_type`, `$post_type_object`, and  `$post` as globals where applicable

See #30799.

Built from https://develop.svn.wordpress.org/trunk@31121


git-svn-id: http://core.svn.wordpress.org/trunk@31102 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/post.php

@@ -23,7 +23,7 @@ elseif ( isset( $_POST['post_ID'] ) )
 else
  	$post_id = $post_ID = 0;
 
-$post = $post_type = $post_type_object = null;
+global $post_type, $post_type_object, $post;
 
 if ( $post_id )
 	$post = get_post( $post_id );