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<?php interface A {} interface B {} class NeedsA { function __construct(A $a) {} } class NeedsB extends NeedsA { function __construct(B $b) {} } var_dump(new NeedsB(new class implements B {}));
Output for git.master, git.master_jit, rfc.property-hooks
object(NeedsB)#1 (0) { }

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