 --> [ local path prefix ]/redef/constant_in_module.fpp:3:12
  |
3 |   constant x = 1
  |            ^ redefinition of symbol x
  |
 ::: [ local path prefix ]/redef/constant_in_module.fpp:2:3
  |
2 |   constant x = 0
  |   -------------- previous definition is here

