.

src/errors.js

@@ -1,6 +1,6 @@
 "use strict";
 /*
-do not use Class here - IE8 does not understande overloeded toString method.
+do not use Class here - IE8 does not understand overloeded toString method (using Class.extend).
 
 var Class = require("rtl.js").Class;
 

src/procedure.js

@@ -344,7 +344,7 @@ exports.predefined = [
         var name = "LEN";
         var args = [new Arg(new Type.Array("ARRAY OF any type"), false)];
         var type = new Std(
-            "LEN",
+            name,
             args,
             Type.basic.integer,
             function(context, id, type){