[coqchk] Look inside inner modules as well

Fixes #12845 (coqchk reports names from inner modules of opaque modules
as axioms)

I don't fully understand the code here, so I can't speak as to its
correctness, but it should be simple enough that reviewers can
understand what it's doing and whether or not it's correct.

This is useful for me in making progress towards
https://github.com/mit-plv/fiat-crypto/issues/736

0 files changed, 0 insertions, 0 deletions