Enforce __set_state() parameter type

This fixes one of the issues reported in bug #79925. The parameter
type check for this particular method was missed.

Author: nikic

Zend/tests/magic_methods_020.phpt

@@ -0,0 +1,12 @@
+--TEST--
+__set_state first parameter must be an array
+--FILE--
+<?php
+
+class Foo {
+	public static function __set_state(int $properties) {}
+}
+
+?>
+--EXPECTF--
+Fatal error: Foo::__set_state(): Parameter #1 ($properties) must be of type array when declared in %s on line %d

Zend/zend_API.c

@@ -2187,6 +2187,7 @@ ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce,
 		zend_check_magic_method_args(1, ce, fptr, error_type);
 		zend_check_magic_method_static(ce, fptr, error_type);
 		zend_check_magic_method_public(ce, fptr, error_type);
+		zend_check_magic_method_arg_type(0, ce, fptr, error_type, MAY_BE_ARRAY);
 		zend_check_magic_method_return_type(ce, fptr, error_type, MAY_BE_OBJECT);
 	} else if (zend_string_equals_literal(lcname, "__invoke")) {
 		zend_check_magic_method_non_static(ce, fptr, error_type);