Documentation discrepancy between `parse` and `parse2`

Both functions are very similar, yet `parse2` explicitly states
> This function will check that the input is fully parsed. If there are any unparsed tokens at the end of the stream, an error is returned.

`parse` does behave the same way (it also errors if the input wasn't completely consumed) but instead of saying so it only notes
> This is preferred over parsing a string because tokens are able to preserve information about where in the user’s code they were originally written (the “span” of the token), possibly allowing the compiler to produce better error messages.

As far as I can tell both sentences are equally relevant for both functions so I think both texts should be synchronized.

Alternatively the whole text could be collected under `parse` with `parse2` just referring to `parse`s documentation.