michael@0: 
michael@0: a = (function() {
michael@0:     with({}) var x, arguments, arguments
michael@0: })()
michael@0: 
michael@0: b = (function() {
michael@0:     with({}) {
michael@0:         var x = Math, arguments
michael@0:         ({
michael@0:             get: (1 for (x in [])),
michael@0:         })
michael@0:     }
michael@0: })()