Auto merge of #85352 - Xanewok:update-rls, r=Xanewok

Update RLS

Contains https://github.com/rust-lang/rls/pull/1736. With #82208 merged, this should now close https://github.com/rust-lang/rust/issues/85225. Tested locally with `./x.py test src/tools/rls` and seems to be working as expected.

I noticed the rustfmt merge didn't trigger toolstate upgrade (because we pruned most but not all of the related machinery?), so I'd rather get this rubber-stamped by someone more knowledgeable with infra/the merged changes in case I missed something and need to include something else here to unbreak the RLS toolstate.

r? `@Mark-Simulacrum`
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2021-05-17 16:34:11 +00:00