Classes/DeclarationCompatibility: sync with WP Core

While looking at this sniff for something unrelated, I started wondering if the signature definitions were still in line with WP Core.

Turned out they were not.

Refs:
* https://developer.wordpress.org/reference/classes/wp_widget/wp_widget/
* https://developer.wordpress.org/reference/classes/walker/start_el/
* https://developer.wordpress.org/reference/classes/walker/end_el/
* https://developer.wordpress.org/reference/classes/walker/unset_children/

Also see the [additional notes I've added to the review ticket](#507 (comment)).

WordPressVIPMinimum/Sniffs/Classes/DeclarationCompatibilitySniff.php

@@ -40,7 +40,7 @@ class DeclarationCompatibilitySniff extends AbstractScopeSniff {
 				'widget_options'  => [
 					'default' => 'array()',
 				],
-				'constol_options' => [
+				'control_options' => [
 					'default' => 'array()',
 				],
 			],
@@ -103,7 +103,7 @@ class DeclarationCompatibilitySniff extends AbstractScopeSniff {
 				'output'            => [
 					'pass_by_reference' => true,
 				],
-				'object',
+				'data_object',
 				'depth'             => [
 					'default' => '0',
 				],
@@ -118,7 +118,7 @@ class DeclarationCompatibilitySniff extends AbstractScopeSniff {
 				'output' => [
 					'pass_by_reference' => true,
 				],
-				'object',
+				'data_object',
 				'depth'  => [
 					'default' => '0',
 				],
@@ -158,7 +158,7 @@ class DeclarationCompatibilitySniff extends AbstractScopeSniff {
 				'elements',
 			],
 			'unset_children'              => [
-				'el',
+				'element',
 				'children_elements' => [
 					'pass_by_reference' => true,
 				],
@@ -215,7 +215,7 @@ protected function processTokenWithinScope( File $phpcsFile, $stackPtr, $currSco
 			return;
 		}
 
-		// Meed to define the originalParentClassName since we might override the parentClassName due to signature notations grouping.
+		// Need to define the originalParentClassName since we might override the parentClassName due to signature notations grouping.
 		$originalParentClassName = $parentClassName;
 
 		if ( array_key_exists( $parentClassName, $this->checkClasses ) === false ) {

WordPressVIPMinimum/Tests/Classes/DeclarationCompatibilityUnitTest.inc

@@ -125,15 +125,21 @@ class MyWalker extends Walker {
 	function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) {
 	} // Ok.
 
-	function unset_children( $el, $children_elements ) {
+	function unset_children( $element, $children_elements ) {
 	} // Bad. $children_elements should be passed by reference
-	
+
 	function walk( $elements, $max_depth, ...$args ) {
 	} // Ok.
-	
+
 	function paged_walk( $elements, $max_depth, $page_num, $per_page ) {
 	} // Bad. Missing $args.
 
 	function paged_walk( $elements, $max_depth, $page_num, $per_page, $args ) {
 	} // Bad. $args is not variadic.
+
+	function start_el( $output, $data_object, $depth, $args = array(), $current_object_id = 0 ) {
+	} // Bad. $output should be passed by reference, $depth should have a default value.
+
+	function end_el( &$output, $data_object, $depth = 0, $args = array() ) {
+	} // Ok.
 }

WordPressVIPMinimum/Tests/Classes/DeclarationCompatibilityUnitTest.php

@@ -47,6 +47,7 @@ public function getErrorList() {
 			128 => 1,
 			134 => 1,
 			137 => 1,
+			140 => 1,
 		];
 	}