[llvm] [llvm-debuginfo-analyzer] Support DW_TAG_module (PR #137228)

[Javier Lopez-Gomez via llvm-commits]

jalopezg-git wrote:

> It's totally unrelated - it was failing on main branch too.

Everything is fixed here now.  I have rebased atop current `main`; let's see if test is fixed now.

Other than that, feel free to resolve all comments above and approve if you are happy w/ the current state :slightly_smiling_face:!

https://github.com/llvm/llvm-project/pull/137228