Fix param type for wp_trigger_error() (#272)

Closes #270

Author: IanDelMar

functionMap.php

@@ -84,7 +84,7 @@
     'wp_schedule_single_event' => ['($wp_error is false ? bool : true|\WP_Error)', 'args' => $cronArgsType],
     'wp_slash' => ['T', '@phpstan-template' => 'T', 'value' => 'T'],
     'wp_tag_cloud' => ["(\$args is array{format: 'array'}&array ? array<int, string>|void : (\$args is array{echo: false|0}&array ? string|void : void))"],
-    'wp_trigger_error' => [null, 'function_name' => 'callable-string', 'error_level' => '\E_USER_ERROR|\E_USER_WARNING|\E_USER_NOTICE|\E_USER_DEPRECATED'],
+    'wp_trigger_error' => [null, 'error_level' => '\E_USER_ERROR|\E_USER_WARNING|\E_USER_NOTICE|\E_USER_DEPRECATED'],
     'wp_unique_id' => ['($prefix is empty ? numeric-string : ($prefix is numeric ? numeric-string : string))'],
     'wp_unschedule_event' => ['($wp_error is false ? bool : true|\WP_Error)', 'args' => $cronArgsType],
     'wp_unslash' => ['T', '@phpstan-template' => 'T', 'value' => 'T'],

wordpress-stubs.php

@@ -112531,7 +112531,6 @@ function _doing_it_wrong($function_name, $message, $version)
      *                              before passing to this function to avoid being stripped {@see wp_kses()}.
      * @param int    $error_level   Optional. The designated error type for this error.
      *                              Only works with E_USER family of constants. Default E_USER_NOTICE.
-     * @phpstan-param callable-string $function_name
      * @phpstan-param \E_USER_ERROR|\E_USER_WARNING|\E_USER_NOTICE|\E_USER_DEPRECATED $error_level
      * @phpstan-return void
      */