Clone stuff, dammit!
Get rid of: InlineContext, Yajit. Fix cloning problems.

InlineContext was removed in conspiracy a while ago but that
never floated up to master. Yajit isn't even in the SDK anymore,
but it was still referred to here when dealing with flat closures..
which we officially don't support anymore.

This still doesn't make my test3 pass (having cover templates with
different templateArgs in the same file) but at least I feel like
I'm getting somewhere.

Also, see? Long commit messages with a nice short one on top.

Maybe I am getting better with age.