Address review comments

Author: TysonAndre

ext/spl/php_spl.stub.php

@@ -2,34 +2,34 @@
 
 /* ext/spl/php_spl.c */
 
-function class_implements($what, bool $autoload = true) : array|false { }
+function class_implements($what, bool $autoload = true): array|false {}
 
-function class_parents($instance, bool $autoload = true) : array|false {}
+function class_parents($instance, bool $autoload = true): array|false {}
 
-function class_uses($what, bool $autoload = true) : array|false {}
+function class_uses($what, bool $autoload = true): array|false {}
 
-function spl_autoload(string $class_name, string $file_extensions = '.inc,.php') : void {}
+function spl_autoload(string $class_name, string $file_extensions = UNKNOWN): void {}
 
 // This silently ignores non-string class names
-function spl_autoload_call($class_name) : void {}
+function spl_autoload_call($class_name): void {}
 
-function spl_autoload_extensions(string $file_extensions = '') : string {}
+function spl_autoload_extensions(string $file_extensions = UNKNOWN): string {}
 
-function spl_autoload_functions() : array|false {}
+function spl_autoload_functions(): array|false {}
 
-function spl_autoload_register($autoload_function = null, bool $throw = true, bool $prepend = false) : bool {}
+function spl_autoload_register($autoload_function = null, bool $throw = true, bool $prepend = false): bool {}
 
-function spl_autoload_unregister($autoload_function) : bool {}
+function spl_autoload_unregister($autoload_function): bool {}
 
-function spl_classes() : array {}
+function spl_classes(): array {}
 
-function spl_object_hash(object $obj) : string {}
+function spl_object_hash(object $obj): string {}
 
-function spl_object_id(object $obj) : int {}
+function spl_object_id(object $obj): int {}
 
 /* ext/spl/spl_iterators.c */
-function iterator_apply(Traversable $iterator, $function, ?array $args = null) : int {}
+function iterator_apply(Traversable $iterator, callable $function, ?array $args = null): int {}
 
-function iterator_count(Traversable $iterator) : int {}
+function iterator_count(Traversable $iterator): int {}
 
-function iterator_to_array(Traversable $iterator, bool $use_keys = true) : array { }
+function iterator_to_array(Traversable $iterator, bool $use_keys = true): array {}

ext/spl/php_spl_arginfo.h

@@ -51,7 +51,7 @@ ZEND_END_ARG_INFO()
 
 ZEND_BEGIN_ARG_WITH_RETURN_TYPE_INFO_EX(arginfo_iterator_apply, 0, 2, IS_LONG, 0)
 	ZEND_ARG_OBJ_INFO(0, iterator, Traversable, 0)
-	ZEND_ARG_INFO(0, function)
+	ZEND_ARG_TYPE_INFO(0, function, IS_CALLABLE, 0)
 	ZEND_ARG_TYPE_INFO(0, args, IS_ARRAY, 1)
 ZEND_END_ARG_INFO()