diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-includes/functions.wp-styles.php
--- a/wp/wp-includes/functions.wp-styles.php	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-includes/functions.wp-styles.php	Tue Dec 15 13:49:49 2020 +0100
@@ -19,9 +19,11 @@
  */
 function wp_styles() {
 	global $wp_styles;
+
 	if ( ! ( $wp_styles instanceof WP_Styles ) ) {
 		$wp_styles = new WP_Styles();
 	}
+
 	return $wp_styles;
 }
 
@@ -37,24 +39,26 @@
  * @since 2.6.0
  *
  * @param string|bool|array $handles Styles to be printed. Default 'false'.
- * @return array On success, a processed array of WP_Dependencies items; otherwise, an empty array.
+ * @return string[] On success, an array of handles of processed WP_Dependencies items; otherwise, an empty array.
  */
 function wp_print_styles( $handles = false ) {
-	if ( '' === $handles ) { // for wp_head
+	global $wp_styles;
+
+	if ( '' === $handles ) { // For 'wp_head'.
 		$handles = false;
 	}
-	/**
-	 * Fires before styles in the $handles queue are printed.
-	 *
-	 * @since 2.6.0
-	 */
+
 	if ( ! $handles ) {
+		/**
+		 * Fires before styles in the $handles queue are printed.
+		 *
+		 * @since 2.6.0
+		 */
 		do_action( 'wp_print_styles' );
 	}
 
 	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
 
-	global $wp_styles;
 	if ( ! ( $wp_styles instanceof WP_Styles ) ) {
 		if ( ! $handles ) {
 			return array(); // No need to instantiate if nothing is there.
@@ -81,7 +85,7 @@
  * @return bool True on success, false on failure.
  */
 function wp_add_inline_style( $handle, $data ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	if ( false !== stripos( $data, '</style>' ) ) {
 		_doing_it_wrong(
@@ -112,7 +116,7 @@
  * @param string           $handle Name of the stylesheet. Should be unique.
  * @param string|bool      $src    Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
  *                                 If source is set to false, stylesheet is an alias of other stylesheets it depends on.
- * @param array            $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
+ * @param string[]         $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
  * @param string|bool|null $ver    Optional. String specifying stylesheet version number, if it has one, which is added to the URL
  *                                 as a query string for cache busting purposes. If version is set to false, a version
  *                                 number is automatically added equal to current installed WordPress version.
@@ -123,7 +127,7 @@
  * @return bool Whether the style has been registered. True on success, false on failure.
  */
 function wp_register_style( $handle, $src, $deps = array(), $ver = false, $media = 'all' ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	return wp_styles()->add( $handle, $src, $deps, $ver, $media );
 }
@@ -138,7 +142,7 @@
  * @param string $handle Name of the stylesheet to be removed.
  */
 function wp_deregister_style( $handle ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	wp_styles()->remove( $handle );
 }
@@ -157,7 +161,7 @@
  * @param string           $handle Name of the stylesheet. Should be unique.
  * @param string           $src    Full URL of the stylesheet, or path of the stylesheet relative to the WordPress root directory.
  *                                 Default empty.
- * @param array            $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
+ * @param string[]         $deps   Optional. An array of registered stylesheet handles this stylesheet depends on. Default empty array.
  * @param string|bool|null $ver    Optional. String specifying stylesheet version number, if it has one, which is added to the URL
  *                                 as a query string for cache busting purposes. If version is set to false, a version
  *                                 number is automatically added equal to current installed WordPress version.
@@ -167,7 +171,7 @@
  *                                 '(orientation: portrait)' and '(max-width: 640px)'.
  */
 function wp_enqueue_style( $handle, $src = '', $deps = array(), $ver = false, $media = 'all' ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	$wp_styles = wp_styles();
 
@@ -175,6 +179,7 @@
 		$_handle = explode( '?', $handle );
 		$wp_styles->add( $_handle[0], $src, $deps, $ver, $media );
 	}
+
 	$wp_styles->enqueue( $handle );
 }
 
@@ -188,7 +193,7 @@
  * @param string $handle Name of the stylesheet to be removed.
  */
 function wp_dequeue_style( $handle ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	wp_styles()->dequeue( $handle );
 }
@@ -204,7 +209,7 @@
  * @return bool Whether style is queued.
  */
 function wp_style_is( $handle, $list = 'enqueued' ) {
-	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__ );
+	_wp_scripts_maybe_doing_it_wrong( __FUNCTION__, $handle );
 
 	return (bool) wp_styles()->query( $handle, $list );
 }
@@ -221,7 +226,7 @@
  * 'alt'         bool        For rel="alternate stylesheet".
  * 'title'       string      For preferred/alternate stylesheets.
  *
- * @see WP_Dependency::add_data()
+ * @see WP_Dependencies::add_data()
  *
  * @since 3.6.0
  *