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--TEST--
Abstract method in trait using "self" (invalid)
--FILE--
<?php
trait T {
abstract private function method(self $x): self;
}
class C {
use T;
private function method(int $x): int { }
}
?>
===DONE===
--EXPECTF--
Fatal error: Declaration of C::method(int $x): int must be compatible with T::method(C $x): C in %s on line %d
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