Moved access checks out of Dictionary class.

src/objects.h

 // Copyright 2012 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 2892 matching lines @@
 
 template <typename Shape, typename Key>
 class Dictionary: public HashTable<Shape, Key> {
  public:
   static inline Dictionary<Shape, Key>* cast(Object* obj) {
     return reinterpret_cast<Dictionary<Shape, Key>*>(obj);
   }
 
   // Returns the value at entry.
   Object* ValueAt(int entry) {
-    return this->get(HashTable<Shape, Key>::EntryToIndex(entry)+1);
+    return this->get(HashTable<Shape, Key>::EntryToIndex(entry) + 1);
   }
 
   // Set the value for entry.
-  // Returns false if the put wasn't performed due to property being read only.
-  // Returns true on successful put.
-  bool ValueAtPut(int entry, Object* value) {
-    // Check that this value can actually be written.
-    PropertyDetails details = DetailsAt(entry);
-    // If a value has not been initilized we allow writing to it even if
-    // it is read only (a declared const that has not been initialized).
-    if (details.IsReadOnly() && !ValueAt(entry)->IsTheHole()) {
-      return false;
-    }
+  void ValueAtPut(int entry, Object* value) {
     this->set(HashTable<Shape, Key>::EntryToIndex(entry) + 1, value);
-    return true;
   }
 
   // Returns the property details for the property at entry.
   PropertyDetails DetailsAt(int entry) {
     ASSERT(entry >= 0);  // Not found is -1, which is not caught by get().
     return PropertyDetails(
         Smi::cast(this->get(HashTable<Shape, Key>::EntryToIndex(entry) + 2)));
   }
 
   // Set the details for entry.
@@ skipping 5360 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_