(It would have avoided issue #8)

close #8

Remove a lot of warnings (considered as errors by dune).

cd rdbg #sha 4a54c7a1181e1200670f3eaf14af1be32823cd04

Indeed the API of Format.formatter_out_functions changed in 4.06.0

To turn around this problem, I've used pp_get_formatter_out_functions
and extend it result

Merge branch 'pascal01'

Indeed, it may fail if an ADT changes in lutils or rdbg-plugin, since
this repo can only be updated if the whole pipeline succeeds (to be
able te get the release number). The idea is to rerun this job manually
when it is the case.

Rationale: a step to make time traveling work correctly.