* Use fork of async-pipe library that handles closed pipes correctly.
* Clear response handlers map when terminating output task, so as
to wake any pending request futures.
Co-Authored-By: Nathan Sobo <nathan@zed.dev>
This required indexing UTF-16 positions in `Rope`. We tried opting
into the UTF-8 experimental support but it didn't seem to work
correctly and the standard is UTF-16 anyway.
Co-Authored-By: Nathan Sobo <nathan@zed.dev>
When bundled, we will retrieve it out of the `Resources` folder.
Locally, we're expected to run `script/download-rust-analyzer` and
put `vendor/bin` in our $PATH.
