refactor: replace comment_re closure with nested fn comment_text in comments_above

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: k8s-1

CHANGELOG.md

@@ -3,6 +3,13 @@
 ### 🚜 Refactor
 
 - Inline is_definition/is_reference helpers and simplify completion guards
+- Remove unreachable unwrap_or in completion symbol lookup
+- Split find_occurrences_within_tree into variable and function helpers
+- Replace comment_re closure with nested fn comment_text in comments_above
+
+### ⚙️ Miscellaneous Tasks
+
+- Format and changelog
 ## [0.2.7] - 2026-05-29
 
 ### 📚 Documentation

src/analyser.rs

@@ -326,18 +326,18 @@ impl Analyser {
     #[must_use]
     pub fn comments_above(&self, uri: &str, line: u32) -> Option<String> {
         let doc = self.docs.get(uri)?;
+        fn comment_text(l: &str) -> Option<String> {
+            let rest = l.trim_start().strip_prefix('#')?.trim_start();
+            Some(rest.trim_end().to_string())
+        }
+
         let lines: Vec<&str> = doc.source.lines().collect();
         let mut block = Vec::new();
-        let comment_re = |l: &str| -> Option<String> {
-            let trimmed = l.trim_start();
-            let rest = trimmed.strip_prefix('#')?.trim_start();
-            Some(rest.trim_end().to_string())
-        };
 
         let mut idx = line.saturating_sub(1) as usize;
         loop {
             let l = lines.get(idx)?;
-            match comment_re(l) {
+            match comment_text(l) {
                 Some(c) => {
                     block.push(c);
                     if idx == 0 {

src/util/declarations.rs

@@ -371,7 +371,12 @@ fn find_variable_occurrences<'a>(
     start: Option<Position>,
 ) -> Vec<Range> {
     let mut nodes = Vec::new();
-    collect_typed_nodes(base_node, &["variable_name", "word"], effective_start, &mut nodes);
+    collect_typed_nodes(
+        base_node,
+        &["variable_name", "word"],
+        effective_start,
+        &mut nodes,
+    );
 
     let mut ignored_ranges: Vec<Range> = Vec::new();
     let mut result: Vec<Range> = Vec::new();