Can you clarify if you're looking for changes to GN itself or //build, or just //v8 things?

As suggested by laforge@ and a conversation w/ the monorail folks, I'm going to try tracking V8 GN-Migration related issues by *just* using the Proj-GN-Migration-V8 label, and not using blocking/rollup bugs, so that we can use blocking for just tasks that truly need to be completed before other tasks can make progress.

Lowering priority given that there is no activity for half a year on this bug.

This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue.

Sorry for the inconvenience if the bug really should have been left as Available.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

what is the current status of this?

Several changes have been made that weren't tracked here. E.g.:
https://chromium.googlesource.com/chromium/src/+/f808fa2ee42b46124ed104dd46cd407632a492e0

I assume this is done.