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<?php class A { function foo(A $a) {} } class B extends A { function foo(B $b) {} } $b = new B; $b->foo($b);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Declaration of B::foo(B $b) must be compatible with A::foo(A $a) in /in/VhYmM on line 8
Process exited with code 255.

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