Revert "TransitionArray now uses <is_data_property, name, attributes> tuple as a key, which allows …

src/objects-printer.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/heap/objects-visiting.h"
 #include "src/jsregexp.h"
@@ skipping 1116 matching lines @@
 }
 
 
 void TransitionArray::PrintTransitions(std::ostream& os,
                                        bool print_header) {  // NOLINT
   if (print_header) {
     os << "Transition array " << number_of_transitions() << "\n";
   }
   for (int i = 0; i < number_of_transitions(); i++) {
     Name* key = GetKey(i);
-    Map* target = GetTarget(i);
     os << "   ";
     key->NamePrint(os);
     os << ": ";
     if (key == GetHeap()->frozen_symbol()) {
       os << " (transition to frozen)";
     } else if (key == GetHeap()->elements_transition_symbol()) {
-      os << " (transition to " << ElementsKindToString(target->elements_kind())
-         << ")";
+      os << " (transition to "
+         << ElementsKindToString(GetTarget(i)->elements_kind()) << ")";
     } else if (key == GetHeap()->observed_symbol()) {
       os << " (transition to Object.observe)";
     } else {
-      PropertyDetails details = GetTargetDetails(key, target);
+      PropertyDetails details = GetTargetDetails(i);
       switch (details.type()) {
         case FIELD: {
           os << " (transition to field)";
           break;
         }
         case CONSTANT:
           os << " (transition to constant " << Brief(GetTargetValue(i)) << ")";
           break;
         case CALLBACKS:
           os << " (transition to callback " << Brief(GetTargetValue(i)) << ")";
           break;
         // Values below are never in the target descriptor array.
         case NORMAL:
           UNREACHABLE();
           break;
       }
       os << ", attrs: " << details.attributes();
     }
-    os << " -> " << Brief(target) << "\n";
+    os << " -> " << Brief(GetTarget(i)) << "\n";
   }
 }
 
 
 #endif  // OBJECT_PRINT
 
 
 #if TRACE_MAPS
 
 
@@ skipping 22 matching lines @@
       return SNPrintF(str, "#<%s>", s->PrivateSymbolToName());
     } else {
       return SNPrintF(str, "<%s>", String::cast(s->name())->ToCString().get());
     }
   }
 }
 
 
 #endif  // TRACE_MAPS
 } }  // namespace v8::internal