Iterate over arrays dirrectly, instead of going through a slice

crates/ide-db/src/line_index.rs

@@ -185,14 +185,14 @@ mod tests {
         ];
 
         let index = LineIndex::new(text);
-        for &(offset, line, col) in &table {
+        for (offset, line, col) in table {
             assert_eq!(index.line_col(offset.into()), LineCol { line, col });
         }
 
         let text = "\nhello\nworld";
         let table = [(0, 0, 0), (1, 1, 0), (2, 1, 1), (6, 1, 5), (7, 2, 0)];
         let index = LineIndex::new(text);
-        for &(offset, line, col) in &table {
+        for (offset, line, col) in table {
             assert_eq!(index.line_col(offset.into()), LineCol { line, col });
         }
     }