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<?php interface Foo { public function log($tag, $message); } function f(Foo $x) {} $a = null; f($a);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: f(): Argument #1 ($x) must be of type Foo, null given, called in /in/HjE2b on line 11 and defined in /in/HjE2b:7 Stack trace: #0 /in/HjE2b(11): f(NULL) #1 {main} thrown in /in/HjE2b on line 7
Process exited with code 255.

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