function primePump(path, isUntitledDoc) {
            _postMessageByPass({
                type            : MessageIds.TERN_PRIME_PUMP_MSG,
                path            : path,
                isUntitledDoc   : isUntitledDoc
            });

            return addPendingRequest(path, OFFSET_ZERO, MessageIds.TERN_PRIME_PUMP_MSG);
        }
Prime the pump for a fast first lookup.

@param {string} path - full path of file
@return {jQuery.Promise} - the promise for the request