tree 8036ca2bddcecb3a92d99c69a3d91c46d4517fb1
parent 26257dc5bc6bcb20aee3062dcb5e84f751f01b5d
author Alexander Timin <altimin@google.com> 1611076999 +0000
committer Alexander Timin <altimin@google.com> 1611076999 +0000

TracedValue: add dchecks that the scope is always correct.

Each time a value is being written into a TracedValue / TracedArray
/ TracedDictionary, DCHECK that it's an active one.

Active bit is tracked on each scope in the following way:
- When calling Write* for primitive types, active bit is passed back
  to the parent.
- When calling Write* for complex types, active bit is passed to the
  newly-created scope.
- When destroying the scope, active bit is passed back to the parent.

Also add a few death tests checking that the dchecks actually fail.

R=primiano@google.com,eseckler@google.com,skyostil@google.com

Change-Id: Iab5122a2317c2ea7ad646039ea6e40a6fe7195ba