refactor(ProjectDetection): Simplify array_filter call

            }

            // Filter out directories.

            $infoFiles = array_filter(

                $infoFiles,

                function ($fileName) {

                    return is_file($fileName);

                }

            );

            $infoFiles = array_filter($infoFiles, 'is_file');

            // Go one directory up if we do not find an info file here.

            $dir = dirname($dir);