Login and Registration: Pass `$errors` parameter to `registration_redirect` filter.

On user registration, the `$errors` variable is the result of `register_new_user` which contains either the newly registered user's ID on success or a `WP_Error` object on failure.  This change passes that context to the `registration_redirect` filter.

Props Collizo4sky, aadilali, mukesh27, audrasjb.
Fixes #53992.
Built from https://develop.svn.wordpress.org/trunk@52091


git-svn-id: http://core.svn.wordpress.org/trunk@51683 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-52090';
+$wp_version = '5.9-alpha-52091';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

wp-login.php

@@ -1040,10 +1040,13 @@ switch ( $action ) {
 		 * Filters the registration redirect URL.
 		 *
 		 * @since 3.0.0
+		 * @since 5.9.0 Added the `$errors` parameter.
 		 *
-		 * @param string $registration_redirect The redirect destination URL.
+		 * @param string       $registration_redirect The redirect destination URL.
+		 * @param int|WP_Error $errors                User id if registration was successful,
+		 *                                            WP_Error object otherwise.
 		 */
-		$redirect_to = apply_filters( 'registration_redirect', $registration_redirect );
+		$redirect_to = apply_filters( 'registration_redirect', $registration_redirect, $errors );
 
 		login_header( __( 'Registration Form' ), '<p class="message register">' . __( 'Register For This Site' ) . '</p>', $errors );