Since 0.9, @lang syntax is still available as fallback but will soon be deprecated.
Because of that, new syntax should be adopted once 0.9 becomes the
baseline requirements for nvim-treesitter
- update health check
- update doc
Assume that any identifiers that aren't function calls, types, fields or
constants are variables. This is consistent with the highlighting
definitions for other languages. Some themes (e.g. zenbones) make use of
this information and they don't look quite right unless we set those
groups.
