Handling of named terms

[Stevendeo]

I am searching how to access the custom names of assertions (and sub expressions). For example, on the following file:

(set-logic ALL)
(declare-const x Int)
(assert (! (= x (! (+ x x) :named foo)) :named bar))

I would like to have the term + x x associated to the identifier foo and the whole assertion associated to the identifier bar.

[Stevendeo]

After navigating through the code, I found a way to get them:
Expr.Term.get_tag term Expr.Tags.named

It still is cumbersome to visit the terms, would it be interesting to add a term visitor/iterator in Dolmen unfolding the different subterms of a given term?

[Gbury]

Closing since #199 has been merged.