Editor: Fix register_block_type does not recognise ancestor block setting

When registering block through PHP, using `register_block_type` function, newly introduced `ancestor` block setting in `block.json` was not recognised. It worked though, when block is registered from JavaScript.

Props lovor, annezazu.
Fixes #56184.




git-svn-id: https://develop.svn.wordpress.org/trunk@53718 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/blocks.php

@@ -286,6 +286,7 @@ function register_block_type_from_metadata( $file_or_folder, $args = array() ) {
 		'title'           => 'title',
 		'category'        => 'category',
 		'parent'          => 'parent',
+		'ancestor'        => 'ancestor',
 		'icon'            => 'icon',
 		'description'     => 'description',
 		'keywords'        => 'keywords',

tests/phpunit/data/blocks/notice/block.json

@@ -4,7 +4,10 @@
 	"title": "Notice",
 	"category": "common",
 	"parent": [
-		"core/group"
+		"tests/group"
+	],
+	"ancestor": [
+		"tests/section"
 	],
 	"providesContext": {
 		"tests/message": "message"

tests/phpunit/tests/blocks/register.php

@@ -381,7 +381,8 @@ class Tests_Blocks_Register extends WP_UnitTestCase {
 		$this->assertSame( 'tests/notice', $result->name );
 		$this->assertSame( 'Notice', $result->title );
 		$this->assertSame( 'common', $result->category );
-		$this->assertSameSets( array( 'core/group' ), $result->parent );
+		$this->assertSameSets( array( 'tests/group' ), $result->parent );
+		$this->assertSameSets( array( 'tests/section' ), $result->ancestor );
 		$this->assertSame( 'star', $result->icon );
 		$this->assertSame( 'Shows warning, error or success notices…', $result->description );
 		$this->assertSameSets( array( 'alert', 'message' ), $result->keywords );