varargs with zero arguments

[chriseppstein]

This code should compile:

@function foo($args...) {
  @return bar($args...);
}

@function bar() {
 @return "hi";
}

.foo {
  result: foo();
}

to:

.foo {
  result: "hi";
}

But instead I get the following error even in the latest libsass code:

function bar only takes 0 arguments; given 1 on line 2 at column 11

[chriseppstein]

damn you're fast.

[xzyfer]

Specs added sass/sass-spec#343