I18N: Pass the `$locale` variable to the `load_translation_file` filter.

This avoids the need for the locale to be recalculated by code that hooks into this filter.

Props swissspidy, mukesh27, johnbillion

Fixes #61108

Built from https://develop.svn.wordpress.org/trunk@58095


git-svn-id: http://core.svn.wordpress.org/trunk@57560 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/l10n.php

@@ -833,11 +833,13 @@ function load_textdomain( $domain, $mofile, $locale = null ) {
 		 * the file path could be for an MO or PHP file.
 		 *
 		 * @since 6.5.0
+		 * @since 6.6.0 Added the `$locale` parameter.
 		 *
 		 * @param string $file   Path to the translation file to load.
 		 * @param string $domain The text domain.
+		 * @param string $locale The locale.
 		 */
-		$file = (string) apply_filters( 'load_translation_file', $file, $domain );
+		$file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale );
 
 		$success = $i18n_controller->load_file( $file, $domain, $locale );
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.6-alpha-58094';
+$wp_version = '6.6-alpha-58095';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.