constructor(path, body, { physicalPath } = {}) {
		this.path = path;
		this.physicalPath = physicalPath ?? path;
		this.bom = hasUnicodeBOM(body);
		this.body = stripUnicodeBOM(body);
		this.rawBody = body;
	}
Creates a new instance.
@param {string} path The file path.
@param {string|Uint8Array} body The file contents.
@param {Object} [options] Additional options.
@param {string} [options.physicalPath] The file path on disk.