Test/EVSE/GPL/php-5.6.40/tests/classes/interface_constant_inheritance_002.phpt

--TEST--
Ensure a class may not shadow a constant inherited from an interface. 
--FILE--
<?php
interface I {
	const FOO = 10;
}

class C implements I {
	const FOO = 10;
}

echo "Done\n";
?>
--EXPECTF--

Fatal error: Cannot inherit previously-inherited or override constant FOO from interface I in %s on line 6