Hmm... I can't seem to find one in Quotes and Quote-like Operators...
I know it's not quite what you were looking for, but you could make a function that strips out newlines and executes.
Alternatively, you could make a module with some custom RE syntax if you want it to look like a quote-like operator.

After reading later posts: Trizor++, I won't suggest any more over-the-top hacks :)