typescript--backward-to-parameter-list can cause multi-second delays in large files about typescript.el HOT 4 OPEN

There should be pre-release builds out there now I think, but maybe not yet for Windows?

CC: @phillord

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I blame-walked the history and found where the line was introduced, but I still don't understand why there's explicitly no limit to how far backwards we'll look.

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If that's an option for you, I would recommend you get Emacs 29 (or build it from source), and use the new and shiny typescript-support added there.

https://github.com/emacs-typescript/typescript.el#good-news-though

It's much more accurate, faster and much less buggy 😄

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Thanks for the suggestion, @josteink .

I've been eying the new tree-sitter support enviously, waiting for Emacs 29 to hit a proper release. Maybe I should roll up my sleeves and start building my own. 😃

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