 --> [ local path prefix ]/redef/component_instance.fpp:6:10
  |
6 | instance c: C base id 0x200
  |          ^ redefinition of symbol c
  |
 ::: [ local path prefix ]/redef/component_instance.fpp:5:1
  |
5 | instance c: C base id 0x100
  | --------------------------- previous definition is here

