anchor.diff:    `(not (= "undefined" (%js-typeof ,x))))
   
   (define-js-std-macro dont-obfuscate (&rest symbols)
  -  (when *show-definitions?*
  +  (when *show-definitions*
       (late-print `(dont-obfuscate ,@symbols)))
     (apply #'transpiler-add-obfuscation-exceptions
   		 *js-transpiler* symbols)
  
positive.code: ;;;;; Copyright (c) 2008-2010 Sven Klose <pixel@copei.de>
  ;;;;;
  ;;;;; Overriding standard macros.
  
  (defmacro define-js-std-macro (&rest x)
    `(define-transpiler-std-macro *js-transpiler* ,@x))
  
negative.code: 				   (,@(awhen fi-sym
  						`(%funinfo ,!))
  					,a
  		 			,(when *log-functions?*
  					   `(log ,(symbol-name n)))
     		            ,@body))))))
  
  (define-js-std-macro define-native-js-fun (name args &rest body)
  