[PHP-BUG] Bug #74476 [NEW]: Cast and TypeHint do not have the expected behavior

From:             tonin at bolzan dot io
Operating system: All
PHP version:      7.1.4
Package:          PHP Language Specification
Bug Type:         Bug
Bug description:Cast and TypeHint do not have the expected behavior

Description:
------------
Cast and TypeHint do not have the expected behavior
(function () : object { return (object) []; })();
must be an instance of object, instance of stdClass returned

Test script:
---------------
php -a
php > (function () : object { return (object) []; })();
PHP Warning:  Uncaught TypeError: Return value of {closure}() must be an
instance of object, instance of stdClass returned in php shell code:1
Stack trace:
#0 php shell code(1): {closure}()
#1 {main}
  thrown in php shell code on line 1

Expected result:
----------------
Work normal

Actual result:
--------------
PHP Warning:  Uncaught TypeError: Return value of {closure}() must be an
instance of object, instance of stdClass returned in php shell code:1
Stack trace:
#0 php shell code(1): {closure}()
#1 {main}
  thrown in php shell code on line 1

-- 
Edit bug report at https://bugs.php.net/bug.php?id=74476&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=74476&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=74476&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=74476&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=74476&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=74476&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=74476&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=74476&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=74476&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=74476&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=74476&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=74476&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=74476&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=74476&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=74476&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=74476&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=74476&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=74476&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=74476&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=74476&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=74476&r=mysqlcfg