This CL modifies the logging pipeline of V8 to track
timestamps of the IC events across the log file.

Modifies the current IC-explorer's code to make it
compatible with the IC event time processing.

Change-Id: I2a0f652e2657bdebe8cecd7862a7545f7b050cdb
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2274613
Commit-Queue: Zeynep Cankara <zcankara@google.com>
Reviewed-by: Camillo Bruni <cbruni@chromium.org>
Reviewed-by: Sathya Gunasekaran  <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68849}