Comment 3 for bug 1830973

Beware any Angular branches merged after this branch will require updates to be Angular8-compatible. There's a migration routine built in to automate the process (though in some cases it may require manual intervention).

The command:

ng update @angular/core --from 7 --to 8 --migrate-only

And when we do decide to flip the switch, I can redo the migration on current master.