GRPC over dev tunnels  #463

/**
 * Construct a ServiceError from a StatusObject. This function exists primarily
 * as an attempt to make the error stack trace clearly communicate that the
 * error is not necessarily a problem in gRPC itself.
 * @param status
 */
function callErrorFromStatus(status, callerStack) {
    const message = `${status.code} ${constants_1.Status[status.code]}: ${status.details}`;
    const error = new Error(message);
    const stack = `${error.stack}\nfor call at\n${callerStack}`;
    return Object.assign(new Error(message), status, { stack });
}