{
var f = null
{
var a = "a"
f = Fn.new { System.print(a) }
}
{
// Since a is out of scope, the local slot will be reused by b. Make sure
// that f still closes over a.
var b = "b"
f.call() // expect: a
}
}
// TODO: Maximum number of closed-over variables (directly and/or indirect).