variable symbol changed from 'enum E1 v1' to 'enum { a1 = 1, } v1'
  type changed from 'enum E1' to 'enum { a1 = 1, }'

variable symbol changed from 'enum { a2 = 2, } v2' to 'enum E2 v2'
  type changed from 'enum { a2 = 2, }' to 'enum E2'

exit code 4