===description===
checkCallableTypeArrayInstanceFirstArg
===file===
<?php
                    /**
                     * @param callable(int,int):int $_p
                     */
                    function f(callable $_p): void {}

                    class C {
                        public static function m(string $a, string $b): int { return $a <=> $b; }
                    }

                    f([new C, "m"]);
===expect===
InvalidScalarArgument
===ignore===
TODO
