TICKY_COUNTER_DEF documentation is out of date
See https://downloads.haskell.org/ghc/latest/docs/users_guide/eventlog-formats.html#ticky-counters
- Problem 1: It should be section 16.7 rather than nested in the 16.6.3 (non-moving GC events)
- Problem 2: The description doesn't document the 6th field which contains a JSON string
See aba482ea