- // MIR for `wrong` before RenameReturnPlace
+ // MIR for `wrong` after RenameReturnPlace
  
  fn wrong(_1: char) -> char {
      let mut _0: char;
      let mut _2: char;
  
      bb0: {
-         _2 = _1;
-         _0 = _2;
-         _2 = const 'b';
+         _0 = _1;
+         _0 = const 'b';
          return;
      }
  }