Export TimerManager from GHC.Event
|Reported by:||basvandijk||Owned by:|
|Type of failure:||None/Unknown||Test Case:|
|Related Tickets:||Differential Rev(s):|
GHC.Event exports getSystemTimerManager but not the actual TimerManager type. I propose to export it so that the haddocks are properly linked and users can actually refer to TimerManager in their type signatures.