Introduce a new AccessorPair type for handling JavaScript accessors.

src/objects-debug.cc

 // Copyright 2011 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 584 matching lines @@
 void AccessorInfo::AccessorInfoVerify() {
   CHECK(IsAccessorInfo());
   VerifyPointer(getter());
   VerifyPointer(setter());
   VerifyPointer(name());
   VerifyPointer(data());
   VerifyPointer(flag());
 }
 
 
+void AccessorPair::AccessorPairVerify() {
+  CHECK(IsAccessorPair());
+  VerifyPointer(getter());
+  VerifyPointer(setter());
+}
+
+
 void AccessCheckInfo::AccessCheckInfoVerify() {
   CHECK(IsAccessCheckInfo());
   VerifyPointer(named_callback());
   VerifyPointer(indexed_callback());
   VerifyPointer(data());
 }
 
 
 void InterceptorInfo::InterceptorInfoVerify() {
   CHECK(IsInterceptorInfo());
@@ skipping 232 matching lines @@
         ASSERT(e->IsUndefined());
       }
     }
   }
 }
 
 
 #endif  // DEBUG
 
 } }  // namespace v8::internal