No means they don’t want to pay their debts. Yes means they compromise with their debt holders.
They will compromise with the debt holders means-lend us
more money or we won’t pay you back.
Implied: if you lend us more money we still won’t pay you back.
IMO they are headed for disaster regardless of the outcome. The “yes” vote might help the markets a bit, but not much. A “No” vote pretty much means hey are on their own, and they can’t help themselves.