chore(deps): bump tree-sitter-dart to 0.2.0 and update grammar bindings

The 0.2.0 release drops the legacy `language()` factory (use the
`LANGUAGE` constant like the other modern bindings) and renames grammar
nodes. Update ck-chunk's Dart tree-sitter query accordingly:
class_definition -> class_declaration, class_member_definition ->
method_declaration, local_variable_declaration ->
top_level_variable_declaration, plus function/constructor captures.

Supersedes dependabot PR #144.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: runonthespot

Cargo.lock

@@ -58,7 +58,7 @@ tree-sitter-c = "0.24"
 tree-sitter-cpp = "0.23"
 tree-sitter-c-sharp = "0.23"
 tree-sitter-zig = "1.1"
-tree-sitter-dart = "0.0.4"
+tree-sitter-dart = "0.2.0"
 tree-sitter-elixir = "0.3"
 tree-sitter-md = "0.5.3"
 fastembed = { version = "5.13", default-features = false, features = ["hf-hub-rustls-tls", "ort-download-binaries"] }

Cargo.toml

@@ -1,14 +1,15 @@
 ; Dart chunk definitions using tree-sitter queries
+; Node names follow tree-sitter-dart 0.2.0's grammar.
 
 ; Classes, Mixins, Enums
-(class_definition) @definition.class
+(class_declaration) @definition.class
 (mixin_declaration) @definition.class
 (enum_declaration) @definition.class
 
 ; Functions, Methods, Constructors
-(lambda_expression) @definition.function
-(class_member_definition) @definition.method
-; (constructor_signature) @definition.method 
+(function_declaration) @definition.function
+(method_declaration) @definition.method
+(constructor_signature) @definition.method
 
 ; Top-level variables and constants (module-level)
-(local_variable_declaration) @module.text
+(top_level_variable_declaration) @module.text

ck-chunk/queries/dart/tags.scm

@@ -371,12 +371,6 @@ fn chunk_generic_with_token_config(text: &str, model_name: Option<&str>) -> Resu
 }
 
 pub(crate) fn tree_sitter_language(language: ParseableLanguage) -> Result<tree_sitter::Language> {
-    // tree-sitter-dart v0.0.4 uses an older API that returns Language directly,
-    // while newer bindings (v0.24+) require calling .into() on a factory struct.
-    if language == ParseableLanguage::Dart {
-        return Ok(tree_sitter_dart::language());
-    }
-
     if language == ParseableLanguage::Markdown {
         return Ok(tree_sitter_md::LANGUAGE.into());
     }
@@ -395,7 +389,7 @@ pub(crate) fn tree_sitter_language(language: ParseableLanguage) -> Result<tree_s
         ParseableLanguage::CSharp => tree_sitter_c_sharp::LANGUAGE,
         ParseableLanguage::Zig => tree_sitter_zig::LANGUAGE,
 
-        ParseableLanguage::Dart => unreachable!("Handled above via early return"),
+        ParseableLanguage::Dart => tree_sitter_dart::LANGUAGE,
 
         ParseableLanguage::Elixir => tree_sitter_elixir::LANGUAGE,