unused_closure.lox

// This is a regression test. There was a bug where the VM would try to close
// an upvalue even if the upvalue was never created because the codepath for
// the closure was not executed.

{
  var a = "a";
  if (false) {
    fun foo() { a; }
  }
}

// expect: line 8: location: at 'foo': set but never used
// If we get here, we didn't segfault when a went out of scope.
print "ok"; // expect: ok