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<?php class DT extends DateTime {} class C { public function __construct(DateTime $foo){} public function f(DateTime $foo){} } class CE extends C { public function __construct(DT $foo){} public function f(DT $foo){} }
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of CE::f(DT $foo) must be compatible with C::f(DateTime $foo) in /in/V0Etg on line 9
Process exited with code 255.

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