Remove return type extension for wp_dropdown_users (#248)

As documented, `wp_dropdown_users()` always returns a string. See lines 1781-1784 in [wp-includes/user.php](https://github.com/WordPress/WordPress/blob/5cbec1348bf159844c572e4ff89043f4b95ca37a/wp-includes/user.php#L1781-L1784).

Author: IanDelMar

src/EchoKeyDynamicFunctionReturnTypeExtension.php

@@ -30,7 +30,6 @@ class EchoKeyDynamicFunctionReturnTypeExtension implements \PHPStan\Type\Dynamic
         'get_search_form' => 0,
         'the_title_attribute' => 0,
         'wp_dropdown_languages' => 0,
-        'wp_dropdown_users' => 0,
         'wp_get_archives' => 0,
         'wp_list_authors' => 0,
         'wp_list_bookmarks' => 0,
@@ -87,7 +86,6 @@ public function isFunctionSupported(FunctionReflection $functionReflection): boo
      * @see https://developer.wordpress.org/reference/functions/get_search_form/
      * @see https://developer.wordpress.org/reference/functions/the_title_attribute/
      * @see https://developer.wordpress.org/reference/functions/wp_dropdown_languages/
-     * @see https://developer.wordpress.org/reference/functions/wp_dropdown_users/
      * @see https://developer.wordpress.org/reference/functions/wp_get_archives/
      * @see https://developer.wordpress.org/reference/functions/wp_list_authors/
      * @see https://developer.wordpress.org/reference/functions/wp_list_bookmarks/

tests/data/echo_key.php

@@ -10,7 +10,6 @@
 assertType('void', get_search_form());
 assertType('void', the_title_attribute());
 assertType('void', wp_dropdown_languages());
-assertType('void', wp_dropdown_users());
 assertType('void', wp_get_archives());
 assertType('void', wp_list_authors());
 assertType('void', wp_list_bookmarks());
@@ -26,7 +25,6 @@
 assertType('void', get_search_form($args));
 assertType('void', the_title_attribute($args));
 assertType('void', wp_dropdown_languages($args));
-assertType('void', wp_dropdown_users($args));
 assertType('void', wp_get_archives($args));
 assertType('void', wp_list_authors($args));
 assertType('void', wp_list_bookmarks($args));
@@ -40,7 +38,6 @@
 // Explicit array key value of 1
 $args = ['echo' => 1];
 assertType('void', wp_dropdown_languages($args));
-assertType('void', wp_dropdown_users($args));
 assertType('void', wp_get_archives($args));
 assertType('void', wp_list_bookmarks($args));
 assertType('void|false', wp_list_categories($args));
@@ -50,7 +47,6 @@
 assertType('string', get_search_form($args));
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string', wp_list_authors($args));
 assertType('string', wp_list_bookmarks($args));
@@ -64,7 +60,6 @@
 // Explicit array key value of 0
 $args = ['echo' => 0];
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string', wp_list_bookmarks($args));
 assertType('string|false', wp_list_categories($args));
@@ -74,7 +69,6 @@
 assertType('string|void', get_search_form($args));
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string|void', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string|void', wp_list_authors($args));
 assertType('string|void', wp_list_bookmarks($args));
@@ -89,7 +83,6 @@
 $args = 'akey=avalue';
 assertType('void', the_title_attribute($args));
 assertType('void', wp_dropdown_languages($args));
-assertType('void', wp_dropdown_users($args));
 assertType('void', wp_get_archives($args));
 assertType('void', wp_list_authors($args));
 assertType('void', wp_list_bookmarks($args));
@@ -103,7 +96,6 @@
 $args = 'echo=nonemptynonnumeric&akey=avalue';
 assertType('void', the_title_attribute($args));
 assertType('void', wp_dropdown_languages($args));
-assertType('void', wp_dropdown_users($args));
 assertType('void', wp_get_archives($args));
 assertType('void', wp_list_authors($args));
 assertType('void', wp_list_bookmarks($args));
@@ -117,7 +109,6 @@
 $args = 'echo=1&akey=avalue';
 assertType('void', the_title_attribute($args));
 assertType('void', wp_dropdown_languages($args));
-assertType('void', wp_dropdown_users($args));
 assertType('void', wp_get_archives($args));
 assertType('void', wp_list_authors($args));
 assertType('void', wp_list_bookmarks($args));
@@ -131,7 +122,6 @@
 $args = 'echo=0&akey=avalue';
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string', wp_list_authors($args));
 assertType('string', wp_list_bookmarks($args));
@@ -145,7 +135,6 @@
 $args = 'echo=&akey=avalue';
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string', wp_list_authors($args));
 assertType('string', wp_list_bookmarks($args));
@@ -160,7 +149,6 @@
 assertType('string|void', get_search_form($args));
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string|void', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string|void', wp_list_authors($args));
 assertType('string|void', wp_list_bookmarks($args));
@@ -177,7 +165,6 @@
 assertType('string|void', get_search_form($args));
 assertType('string|void', the_title_attribute($args));
 assertType('string|void', wp_dropdown_languages($args));
-assertType('string|void', wp_dropdown_users($args));
 assertType('string|void', wp_get_archives($args));
 assertType('string|void', wp_list_authors($args));
 assertType('string|void', wp_list_bookmarks($args));