_iterateFilesWithFile(filePath) {
		debug(`File: ${filePath}`);

		const { configArrayFactory } = internalSlotsMap.get(this);
		const config = configArrayFactory.getConfigArrayForFile(filePath);
		const ignored = this._isIgnoredFile(filePath, { config, direct: true });
		const flag = ignored ? IGNORED : NONE;

		return [{ config, filePath, flag }];
	}
Iterate a file which is matched by a given path.
@param {string} filePath The path to the target file.
@returns {IterableIterator<FileEntry>} The found files.
@private