[docs] [issue19557] ast - docs for every node type are missing

anatoly techtonik added the comment: SO link serves a proof that a problem is actual. It is needed, because, for example Brett doesn't think it is important. 2nd link is the same proof, and also an example of documentation wanted. ---------- _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue19557> _______________________________________