A fork of helix with a bespoke collection patches.

Consistently use `helix_core::config::default_{lang,config}_loader` master

This avoids using any custom configuration in a user-defined `languages.toml` config for the syntax test cases. The test cases should only use the builtin `languages.toml` config. Also the xtask crate reimplemented `default_lang_loader` and `default_lang_config`. These functions are replaced with calls into `helix_core`.


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