 --> [ local path prefix ]/invalid_symbols/module_as_state_machine.fpp:4:32
  |
4 |     state machine instance s1: M 
  |                                ^ not a state machine symbol
  |
 ::: [ local path prefix ]/invalid_symbols/module_as_state_machine.fpp:1:8
  |
1 | module M {}
  |        - M defined here

