make TS matching fallback to plaintext

helix-core/src/match_brackets.rs

@@ -114,6 +114,9 @@ fn find_pair(
         node = parent;
     }
     let node = tree.root_node().named_descendant_for_byte_range(pos, pos)?;
+    if node.child_count() != 0 {
+        return None;
+    }
     let node_start = doc.byte_to_char(node.start_byte());
     find_matching_bracket_plaintext(doc.byte_slice(node.byte_range()), pos_ - node_start)
         .map(|pos| pos + node_start)
@@ -248,7 +251,7 @@ fn as_open_pair(doc: RopeSlice, node: &Node) -> Option<char> {
         .find_map(|&(open, close_)| (close_ == close).then_some(open))
 }
 
-/// Tests if this node is a pair opening and returns the expected close char
+/// If node is a single char return it (and its char position)
 fn as_char(doc: RopeSlice, node: &Node) -> Option<(usize, char)> {
     // TODO: multi char/non ASCII pairs
     if node.byte_range().len() != 1 {