Issue 1631: prolog submit-rules needs to be able to check if a user has Submit permissions
Status:  New
Owner: ----
Reported by JBjo...@gmail.com, Oct 26, 2012
https://code.google.com/p/gerrit/issues/detail?id=891 needs to be able to say impossible(...) if the uploader does not have submit privileges.

Gerrit currently only allows to check if the user can give label rights, ie: user_label_range/4