You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bug159.go
    path of file: ./repos/gccrs/gcc/testsuite/go.test/test/fixedbugs
    
    the code of the file until where you have to start completion: // run

// Cop
    
func main() {
	ok := true;
	var a, b, c, x, y, z int;
	f := func() int { b--; return -b };

	// this fails on 6g: apparently it rewrites
	// the list into
	//	z = f();
	//	y = f();
	//	x = f();
	// so that the values come out backward.
	x, y, z = f(), f(), f();
	if x != 1 || y != 2 || z != 3 {
		println("xyz: expected 1 2 3 got", x, y, z);
		ok = false;
	}

	// this fails on 6g too.  one of the function calls
	// happens after assigning to b.
	a, b, c = f(), f(), f();
	if a != 4 || b != 5 || c != 6 {
		println("abc: expected 4 5 6 got", a, b, c);
		ok = false;
	}

	if !ok {
		os.Exit(1);
	}
}