I may be confused by your description, but I don't think there's a line that runs that way. I think the line is actually from an oil galley at the back of the head and then splits near the turbo with a banjo-bolt fitting that runs to the turbo bearing, and another line that runs to the front to supply oil to the passenger side AVCS. But I'm just trying to remember that off the top of my head after not looking at a motor for a long while.
As far what it's called... hell if I know.
