anchor.diff:    "function zoo() {
       var baz;
       var bar;
  -    var _js4 = arguments.length;
  -    var n1 = 0;
  -    for (; n1 < _js4; ) {
  +    var _js3 = arguments.length;
  +    for (var n1 = 0; n1 < _js3; n1 += 2) {
           switch (arguments[n1]) {
           case 'baz':
               {
  
positive.code:   (is (string= "5;" (let ((x 5)) (ps (lisp x))))))
  
  (test ps*-lisp-expands-in-null-lexical-environment
    (signals error (let ((x 5)) (ps* '(lisp x)))))
  
  (test ps*-lisp-expands-in-dynamic-environment
    (is (string= "1 + 2;" (let ((*print-level* 2)) (ps* '(+ 1 (lisp *print-level*)))))))
  
negative.code:                 bar = arguments[n1 + 1];
              };
          };
      };
      if (baz === undefined) {
          baz = null;
  