No. mIRC's language requires mIRC to run, whereas TCL is a general purpose language that happens to be used by the eggdrop software.
I would suggest, however, that whatever script it is you need, there exists one for an eggdrop. Eggdrops have been around as long if not longer than mIRC has and are extremely popular for bot usage. I think it's highly likely you would find what you're looking for on google or at least something close to what you need that you could easily modify.
