[fine] Rebuild main, it's probably broken

fine/src/parser.rs

@@ -4,8 +4,6 @@ use crate::tokens::{Lines, Token, TokenKind, Tokens};
 use std::fmt::Write as _;
 use std::{cell::Cell, num::NonZeroU32};
 
-pub mod old; // Until I decide to delete it.
-
 pub struct SyntaxTree<'a> {
     trees: Vec<Tree<'a>>,
     root: Option<TreeRef>,
@@ -68,6 +66,10 @@ impl<'a> SyntaxTree<'a> {
         self[t].end_pos
     }
 
+    pub fn trees(&self) -> impl Iterator<Item = TreeRef> {
+        (0..self.trees.len()).map(|i| TreeRef::from_index(i))
+    }
+
     pub fn find_tree_at(&self, pos: usize) -> Option<TreeRef> {
         let mut current = self.root?;
         let mut tree = &self[current];