* Detail names now all start with an uppercase character and contain no underscores. Ideally these should be head-first camel case, though that was harder to check.
* Type names have the same rules, except they allow one underscore (to support a usage pattern Context_Type). The first character after the underscore is also uppercase.
* Use seconds instead of milliseconds in details.
Added a check when events are logged in simulation that logs a message to stderr if the first two rules above aren't followed.
This probably doesn't address every instance of the above problems, but all of the events I was able to hit in simulation pass the check.
This means that loops like `seed=1; while ./fdbserver -r simulation -s $seed;
do seed=$(($seed+1)); done` to find an example of an often failing test. This
also means joshua will report ExitCode errors on anything that has a SevError
in the log.
As a part of this, we also implicitly downgrade any injected errors to SevWarnAlways.
Added an optimization to use a separate set for throttled events. Since this set is expected to be small, comparison of every event against this set is going to be cheaper.
Trace Events are sampled and cached with an expiration set. Every TraceEvent above SevDebug is checked against this cache to see if it exceeded a set threshold. If yes, then throttle the TraceEvent.
If a TraceEvent is throttled, a warning msg is logged.