clean up and fix tests

test/fixtures/transformation/array-comprehension/arguments/expected.js

@@ -2,9 +2,10 @@
 
 function add() {
   var _arguments = arguments;
+
   return [1, 2, 3].map(function (i) {
     return i * _arguments[0];
   });
 }
 
-add(5);
+add(5);