Vendor the commonlisp parser again

This allows us to use the C library directly. Using the library from
crates.io would require a fairly big MSRV bump.

https://github.com/tree-sitter-grammars/tree-sitter-commonlisp/issues/45

Essentially reverts 87521ed3fc but we
still have the latest version of the upstream grammar.

Fixes #866

build.rs

@@ -82,6 +82,11 @@ fn main() {
             src_dir: "vendored_parsers/tree-sitter-cmake-src",
             extra_files: vec!["scanner.c"],
         },
+        TreeSitterParser {
+            name: "tree-sitter-commonlisp",
+            src_dir: "vendored_parsers/tree-sitter-commonlisp-src",
+            extra_files: vec![],
+        },
         TreeSitterParser {
             name: "tree-sitter-dart",
             src_dir: "vendored_parsers/tree-sitter-dart-src",

src/parse/tree_sitter_parser.rs

@@ -73,6 +73,7 @@ extern "C" {
     fn tree_sitter_apex() -> ts::Language;
     fn tree_sitter_clojure() -> ts::Language;
     fn tree_sitter_cmake() -> ts::Language;
+    fn tree_sitter_commonlisp() -> ts::Language;
     fn tree_sitter_dart() -> ts::Language;
     fn tree_sitter_devicetree() -> ts::Language;
     fn tree_sitter_elisp() -> ts::Language;
@@ -225,8 +226,7 @@ pub(crate) fn from_language(language: guess::Language) -> TreeSitterConfig {
             }
         }
         CommonLisp => {
-            let language_fn = tree_sitter_commonlisp::LANGUAGE_COMMONLISP;
-            let language = tree_sitter::Language::new(language_fn);
+            let language = unsafe { tree_sitter_commonlisp() };
 
             TreeSitterConfig {
                 language: language.clone(),

vendored_parsers/tree-sitter-commonlisp-src

@@ -0,0 +1 @@
+tree-sitter-commonlisp/src