Downgrade line-index due to text sync regression

[pfoerster]

No description provided.

[clason]

Hmm, I still get errors:

[ERROR][2023-11-27 15:45:10] .../vim/lsp/rpc.lua:675	"rpc"	"/Users/clason/.local/share/nvim/lsp/texlab"	"stderr"	"thread 'main' panicked at crates/line-index/src/lib.rs:117:27:\nindex out of bounds: the len is 67 but the index is 265\nnote: run with `RUST_BACKTRACE=1` environment variable to display a backtrace\nthread '<unnamed>' panicked at /Users/clason/.cargo/registry/src/index.crates.io-6f17d22bba15001f/lsp-server-0.7.4/src/stdio.rs:29:37:\nreceiver was dropped, failed to send a message: \"SendError(..)\"\n"

These are instant now, though, so maybe not related to text sync?

[clason]

(Bisected to this PR, though.)

[pfoerster]

Hmm, I still get errors:

@clason Do you have an example or a stack trace with a debug build? Unfortunately, I am unable to reproduce this issue.

[clason]

It happens on pretty much every file, instantly. (Even an empty file inside a project.) I'll see if I can run a debug build (though that's a bit tricky for LSP servers).

[clason]

Hmm, I can't capture the Rust backtrace. It seems to crash when reading aux files.