[Rd] "$<-" fails (invalid subscript type 'language')

[Vitalie S.]

This might be just beyond of my understanding of how assignment works in R, but
the documentation does not say anything about:

> tv <- c(a="dsf", b="sss")
> tl <- list(232)
> `$<-`(tl, tv[[1]], "sdfdsfdsfsd")
Error: invalid subscript type 'language'

This happens even before the method is dispatched. I can not handle the
"name" argument in my S4 method, because it's not even entered.

Thanks,
Vitalie.