rust-analyzer-chromiumos-wrapper: add

This is a wrapper program enabling use of `rust-analyzer` running in the
chroot with an editor outside the chroot.

BUG=b:235120448
TEST=tested with Neovim

Change-Id: I64287071ce6cc26c6848b6fb09743f6df9fac311
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/toolchain-utils/+/3715832
Reviewed-by: George Burgess <gbiv@chromium.org>
Commit-Queue: Michael Benfield <mbenfield@google.com>
Tested-by: Michael Benfield <mbenfield@google.com>
Reviewed-by: Michael Benfield <mbenfield@google.com>
5 files changed