`locate-type` brings me to wrong type

[ddickstein]

In https://github.com/ocaml/ocaml-lsp/blob/master/submodules/lev/lev-fiber/src/lev_fiber.ml#L1253, the type of loop is Lev.Loop.t, but locate-type brings me to Nonempty_list.t.

[voodoos]

I am not even able to jump at all in these files due to a configuration issue.
My guess is that this is due to the copy_file stanza that is not correctly handled by merlin. We should have a way for Dune to communicate the copying of files to Merlin so that jumping works as expected.

[voodoos]

I had a fresh look at this issue, and it is indeed due to the fact that the lev_fiber library is not built from its source tree directory. They are first copied in another directory. This means there is no configuration generated for the originial sources and this prevents Merlin to function correctly.

This cannot be solved by Merlin itself but require collaborating with Dune.

Another solution for this precise example would be to remove the need for this copy, I am not sure why it is there in the first place.