Timeline: remove TimelineModel inferred properties from TracingModel.Event
This removed a bunch of properties computed by WI.TimelineModel and
WI.InvalidationTracker from WI.TracingModel.Event since this is a
layering violation. The former go to WI.TimelineData that is assoiciated
with WI.TracingModel.Event by a Symbol, and the latter are an array
associated with the event in a similar fashion. This still leaves own time
on the WI.TracingModel.Event, we'll take care of this later.
Committed:
https://crrev.com/a4987361ccec93fa698fc6443529c08a74522b01
Cr-Commit-Position: refs/heads/master@{#431470}