Massive renaming of PropertyType values and other implied stuff.

test/mjsunit/regress/regress-merge-descriptors.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 59 matching lines @@
     Object.defineProperties(self, {
       "make": {
         enumerable: true,
         configurable: true,
         get: function () {
           return make;
         }
       }
     });
 
-    // Convert self.copy from CONSTANT to FIELD.
+    // Convert self.copy from DATA_CONSTANT to DATA.
     self.copy = function () { };
 
     return self;
   };
   extend(SuperCar, Super);
   return SuperCar;
 })(Car));
 
 assertEquals("Ford", new Car().make);
 assertEquals("Bugatti", new SuperCar("Bugatti").make);
 assertEquals("Lambo", new SuperCar("Lambo").make);
 assertEquals("Shelby", new SuperCar("Shelby").make);