Narrow return type for did_filter() (#399)

Author: IanDelMar

functionMap.php

@@ -66,6 +66,7 @@
     'current_filter' => ['non-empty-string|false'],
     'current_time' => ["(\$type is 'timestamp'|'U' ? int : string)"],
     'did_action' => ['int<0, max>'],
+    'did_filter' => ['int<0, max>'],
     'edit_link' => ['int<0, max>'],
     'edit_term_link' => ['($display is true ? void : string|void)'],
     'get_approved_comments' => ["(\$args is array{count: true}&array ? int : (\$args is array{fields: 'ids'}&array ? array<int, int> : array<int, \WP_Comment>))"],

tests/data/return/did-action.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use function did_action;
+use function PHPStan\Testing\assertType;
+
+assertType('int<0, max>', did_action('hook_name'));

tests/data/return/did-filter.php

@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpStubs\WordPress\Core\Tests;
+
+use function did_filter;
+use function PHPStan\Testing\assertType;
+
+assertType('int<0, max>', did_filter('hook_name'));

wordpress-stubs.php

@@ -129546,6 +129546,7 @@ function doing_filter($hook_name = \null)
      *
      * @param string $hook_name The name of the filter hook.
      * @return int The number of times the filter hook has been applied.
+     * @phpstan-return int<0, max>
      */
     function did_filter($hook_name)
     {