REST API: Mark "pending" status as date_floating.

See: https://github.com/WordPress/gutenberg/issues/13176

Props TimothyBlynJacobs.
Fixes #39953.

Built from https://develop.svn.wordpress.org/trunk@46274


git-svn-id: http://core.svn.wordpress.org/trunk@46086 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/post.php

@@ -360,6 +360,7 @@ function create_initial_post_types() {
 				'Pending <span class="count">(%s)</span>',
 				'Pending <span class="count">(%s)</span>'
 			),
+			'date_floating' => true,
 		)
 	);
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.3-alpha-46273';
+$wp_version = '5.3-alpha-46274';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.