cli_util: take conflicts by value to print_conflicted_paths()

I'm about to make the vector contain `BackendResult<MergedTreeValue>`,
which is harder to work with behind a mutable reference.

cli/src/cli_util.rs

@@ -1906,7 +1906,7 @@ See https://martinvonz.github.io/jj/latest/working-copy/#stale-working-copy \
                 let conflicts = new_commit.tree()?.conflicts().collect_vec();
                 if !conflicts.is_empty() {
                     writeln!(formatter, "There are unresolved conflicts at these paths:")?;
-                    print_conflicted_paths(&conflicts, formatter.as_mut(), self)?;
+                    print_conflicted_paths(conflicts, formatter.as_mut(), self)?;
                 }
             }
         }
@@ -2467,7 +2467,7 @@ fn update_stale_working_copy(
 
 #[instrument(skip_all)]
 pub fn print_conflicted_paths(
-    conflicts: &[(RepoPathBuf, MergedTreeValue)],
+    conflicts: Vec<(RepoPathBuf, MergedTreeValue)>,
     formatter: &mut dyn Formatter,
     workspace_command: &WorkspaceCommandHelper,
 ) -> Result<(), CommandError> {
@@ -2480,8 +2480,8 @@ pub fn print_conflicted_paths(
         .into_iter()
         .map(|p| format!("{:width$}", p, width = max_path_len.min(32) + 3));
 
-    for ((_, conflict), formatted_path) in std::iter::zip(conflicts.iter(), formatted_paths) {
-        let conflict = conflict.clone().simplify();
+    for ((_, conflict), formatted_path) in std::iter::zip(conflicts, formatted_paths) {
+        let conflict = conflict.simplify();
         let sides = conflict.num_sides();
         let n_adds = conflict.adds().flatten().count();
         let deletions = sides - n_adds;

cli/src/commands/resolve.rs

@@ -91,7 +91,7 @@ pub(crate) fn cmd_resolve(
     }
     if args.list {
         return print_conflicted_paths(
-            &conflicts,
+            conflicts,
             ui.stdout_formatter().as_mut(),
             &workspace_command,
         );
@@ -129,7 +129,7 @@ pub(crate) fn cmd_resolve(
                     formatter,
                     "After this operation, some files at this revision still have conflicts:"
                 )?;
-                print_conflicted_paths(&new_conflicts, formatter.as_mut(), &workspace_command)?;
+                print_conflicted_paths(new_conflicts, formatter.as_mut(), &workspace_command)?;
             }
         }
     }

cli/src/commands/status.rs

@@ -93,7 +93,7 @@ pub(crate) fn cmd_status(
                 formatter.labeled("conflict"),
                 "There are unresolved conflicts at these paths:"
             )?;
-            print_conflicted_paths(&conflicts, formatter, &workspace_command)?;
+            print_conflicted_paths(conflicts, formatter, &workspace_command)?;
         }
 
         let template = workspace_command.commit_summary_template();