===description===
possiblyNullFunctionCall
===file===
<?php
                    /**
                     * @var Closure|null $foo
                     */
                    $foo = null;


                    $foo =
                        /**
                         * @param mixed $bar
                         * @psalm-suppress MixedFunctionCall
                         */
                        function ($bar) use (&$foo): string
                        {
                            if (is_array($bar)) {
                                return $foo($bar);
                            }

                            return $bar;
                        };
===expect===
MixedReturnStatement
===ignore===
TODO
