 --> [ local path prefix ]/internal_port/duplicate_param.fpp:3:27
  |
3 |   internal port p(a: U32, a: I32)
  |                           ^ duplicate parameter `a`
  |
 ::: [ local path prefix ]/internal_port/duplicate_param.fpp:3:19
  |
3 |   internal port p(a: U32, a: I32)
  |                   - previously defined here

