Allow disabling external keyword exclusions

[julienvincent]

In version 2023.10.30-16.25.41 keywords that are considered external to the project are not included in static analysis.

As an example here are two very common scenarios for me:

• I have projects with .edn config files that are outside of the configured project class-path. The .edn files do not get any syntax highlighting.

• I spend a lot of time reading code that lives in external dependencies. When I use something like go-to-definition on a var that resolves to an external dependency then I have no syntax highlighting for the keywords defined in the dependency. This makes that experience a lot worse.

This frustrates me enough that I have stayed on version 2023.08.06-00.28.06 - but this obviously means I lose out on all the other improvements being made in the project.

I would rather have the syntax highlighting than improved performance. Could this behaviour of excluding highlighting for external keywords be made configurable? I would rather leave it on.

[julienvincent]

For any future readers - I have solved this problem for myself by overriding the treesitter highlight queries defined by the default clojure grammar.

This is my override which is based on: https://github.com/sogaiu/tree-sitter-clojure/blob/f4236d4da8aa92bc105d9c118746474c608e6af7/queries/highlights.scm

(kwd_name) @keyword
(kwd_ns) @namespace

(num_lit) @number

[
  (char_lit)
  (str_lit)
] @string

[
 (bool_lit)
 (nil_lit)
] @constant.builtin

;; Comments

(comment) @comment

;; Treat quasiquotation as operators for the purpose of highlighting.

[
 "'"
 "`"
 "~"
 "@"
 "~@"
] @operator