Introduce project-wide renaming #1431
Draft
+74
−47
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This introduces a first functional version of project-wide renaming in ocaml-lsp based on preview work on Merlin.
It re-employs the existing mechanism to handle function labelled arguments correctly. There is no guarantees related to possible shadowing. Here is an example of the feature in action, renaming a value of a functor included from its parameter. The name is changes in all the files, both in signatures and implementations, and the project rebuilds immediately:
project-wide-renaming.mov
This PR is based on #1386 and only the last 2 commits are relevant.