michael@0: 
michael@0: compare = (function() {
michael@0:   function inner() { return inner.caller; };
michael@0:   globalInner = inner;
michael@0:   globalClosure = inner();
michael@0:   return function(f) { return f === inner; }
michael@0: })();
michael@0: 
michael@0: assertEq(compare(globalInner), true);
michael@0: globalClosure();
michael@0: assertEq(compare(globalInner), false);