Fixes for new clippy lints in Rust 1.54.

helix-core/src/comment.rs

@@ -72,7 +72,7 @@ pub fn toggle_line_comments(doc: &Rope, selection: &Selection, token: Option<&st
         min_next_line = end + 1;
     }
 
-    let (commented, to_change, min, margin) = find_line_comment(&token, text, lines);
+    let (commented, to_change, min, margin) = find_line_comment(token, text, lines);
 
     let mut changes: Vec<Change> = Vec::with_capacity(to_change.len());
 

helix-core/src/movement.rs

@@ -245,6 +245,7 @@ impl CharHelpers for Chars<'_> {
 
         // Find our target position(s).
         let head_start = head;
+        #[allow(clippy::while_let_on_iterator)] // Clippy's suggestion to fix doesn't work here.
         while let Some(next_ch) = self.next() {
             if prev_ch.is_none() || reached_target(target, prev_ch.unwrap(), next_ch) {
                 if head == head_start {

helix-term/src/commands.rs

@@ -1661,7 +1661,7 @@ mod cmd {
             Ok(contents) => {
                 let selection = doc.selection(view.id);
                 let transaction =
-                    Transaction::change_by_selection(doc.text(), &selection, |range| {
+                    Transaction::change_by_selection(doc.text(), selection, |range| {
                         (range.from(), range.to(), Some(contents.as_str().into()))
                     });
 

helix-term/src/keymap.rs

@@ -284,7 +284,7 @@ impl Deref for Keymap {
     type Target = KeyTrieNode;
 
     fn deref(&self) -> &Self::Target {
-        &self.root.node().unwrap()
+        self.root.node().unwrap()
     }
 }