Add case for EXTERNAL_ARRAY_TRANSITION to JSObject::NormalizeProperties

src/objects.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 2562 matching lines @@
               dictionary->Add(descs->GetKey(i), value, d);
           if (!maybe_result->ToObject(&result)) return maybe_result;
         }
         dictionary = StringDictionary::cast(result);
         break;
       }
       case MAP_TRANSITION:
       case CONSTANT_TRANSITION:
       case NULL_DESCRIPTOR:
       case INTERCEPTOR:
+      case EXTERNAL_ARRAY_TRANSITION:
         break;
       default:
         UNREACHABLE();
     }
   }
 
   Heap* current_heap = map_of_this->heap();
 
   // Copy the next enumeration index from instance descriptor.
   int index = map_of_this->instance_descriptors()->NextEnumerationIndex();
@@ skipping 7828 matching lines @@
   if (break_point_objects()->IsUndefined()) return 0;
   // Single beak point.
   if (!break_point_objects()->IsFixedArray()) return 1;
   // Multiple break points.
   return FixedArray::cast(break_point_objects())->length();
 }
 #endif
 
 
 } }  // namespace v8::internal