Editor: Support filtering arguments in block type registration

Adds possibility to filter the settings of a block type during its registration.

Props aduth, azaozz.
Fixes #49615.


Built from https://develop.svn.wordpress.org/trunk@48263


git-svn-id: http://core.svn.wordpress.org/trunk@48032 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-block-type.php

@@ -262,6 +262,17 @@ class WP_Block_Type {
 
 		$args['name'] = $this->name;
 
+		/**
+		 * Filters the arguments for registering a block type.
+		 *
+		 * @since 5.5.0
+		 *
+		 * @param array  $args       Array of arguments for registering a
+		 *                           block type.
+		 * @param string $block_type Block type name including namespace.
+		 */
+		$args = apply_filters( 'register_block_type_args', $args, $this->name );
+
 		foreach ( $args as $property_name => $property_value ) {
 			$this->$property_name = $property_value;
 		}

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-48262';
+$wp_version = '5.5-alpha-48263';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.