Editor: Prevent direct access to `/wp-includes/blocks/index.php`.

Adds a check for `ABSPATH` to the top of the `/wp-includes/blocks/index.php` file and prevents the file from loading if it is not defined.

This prevents the file from throwing errors when accessed directly.

Props khokansardar, mukesh27.
Fixes #62108.
See #60352.

Built from https://develop.svn.wordpress.org/trunk@59117


git-svn-id: http://core.svn.wordpress.org/trunk@58513 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks/index.php

@@ -5,6 +5,11 @@
  * @package WordPress
  */
 
+// Don't load directly.
+if ( ! defined( 'ABSPATH' ) ) {
+	die( '-1' );
+}
+
 define( 'BLOCKS_PATH', ABSPATH . WPINC . '/blocks/' );
 
 // Include files required for core blocks registration.

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.7-alpha-59116';
+$wp_version = '6.7-alpha-59117';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.