Multiple assignment as function call

```
What steps will reproduce the problem?
class C
    def f= x
        p x
    end
end

C.new.f = 1, 2 

What is the expected output? What do you see instead?

Exception in thread "main"  Only variable can be parallel assigned

```

Original issue reported on code.google.com by `xue.yong...@gmail.com` on 27 Sep 2007 at 12:59
