Docs: Provide a more accurate description for a few script and style functions.

This should make it clear that the functions only work if the script or style has already been registered.

This affects:
* `wp_localize_script()`
* `wp_set_script_translations()`
* `wp_script_add_data()`
* `wp_style_add_data()`

Follow-up to [7970], [18464], [25594], [31223], [36633], [44169], [44350].

Props audrasjb.
Fixes #54044.
Built from https://develop.svn.wordpress.org/trunk@51726


git-svn-id: http://core.svn.wordpress.org/trunk@51332 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/functions.wp-scripts.php

@@ -186,7 +186,7 @@ function wp_register_script( $handle, $src, $deps = array(), $ver = false, $in_f
 /**
  * Localize a script.
  *
- * Works only if the script has already been added.
+ * Works only if the script has already been registered.
  *
  * Accepts an associative array $l10n and creates a JavaScript object:
  *
@@ -224,7 +224,7 @@ function wp_localize_script( $handle, $object_name, $l10n ) {
 /**
  * Sets translated strings for a script.
  *
- * Works only if the script has already been added.
+ * Works only if the script has already been registered.
  *
  * @see WP_Scripts::set_translations()
  * @global WP_Scripts $wp_scripts The WP_Scripts object for printing scripts.
@@ -402,7 +402,7 @@ function wp_script_is( $handle, $list = 'enqueued' ) {
 /**
  * Add metadata to a script.
  *
- * Works only if the script has already been added.
+ * Works only if the script has already been registered.
  *
  * Possible values for $key and $value:
  * 'conditional' string Comments for IE 6, lte IE 7, etc.

wp-includes/functions.wp-styles.php

@@ -217,7 +217,7 @@ function wp_style_is( $handle, $list = 'enqueued' ) {
 /**
  * Add metadata to a CSS stylesheet.
  *
- * Works only if the stylesheet has already been added.
+ * Works only if the stylesheet has already been registered.
  *
  * Possible values for $key and $value:
  * 'conditional' string      Comments for IE 6, lte IE 7 etc.

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51725';
+$wp_version = '5.9-alpha-51726';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.