Docs: Add missing documentation for `wp_migrate_old_typography_shape()`.

Follow-up to [51089].

See #52991, #52628.
Built from https://develop.svn.wordpress.org/trunk@51159


git-svn-id: http://core.svn.wordpress.org/trunk@50768 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/blocks.php

@@ -975,6 +975,16 @@ function block_has_support( $block_type, $feature, $default = false ) {
 	return true === $block_support || is_array( $block_support );
 }
 
+/**
+ * Converts typography keys declared under `supports.*` to `supports.typography.*`.
+ *
+ * Displays a `_doing_it_wrong()` notice when a block using the older format is detected.
+ *
+ * @since 5.8.0
+ *
+ * @param array $metadata Metadata for registering a block type.
+ * @return array Filtered metadata for registering a block type.
+ */
 function wp_migrate_old_typography_shape( $metadata ) {
 	$typography_keys = array(
 		'__experimentalFontFamily',

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-beta1-51158';
+$wp_version = '5.8-beta1-51159';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.