function addAccumulations(f) {
var a = f();
var b = f();
return a() + b();
}
function loopingAccumulator() {
var x = 0;
return function () {
for (var i = 0; i < 10; ++i) {
++x;
}
return x;
}
}
var x = addAccumulations(loopingAccumulator);
assertEq(x, 20);