[runtime] Use PropertyKind/PropertyLocation instead of PropertyType.

src/objects-debug.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/objects.h"
 
 #include "src/bootstrapper.h"
 #include "src/disasm.h"
 #include "src/disassembler.h"
 #include "src/field-type.h"
@@ skipping 321 matching lines @@
       // This could actually happen in the middle of StoreTransitionStub
       // when the new extended backing store is already set into the object and
       // the allocation of the MutableHeapNumber triggers GC (in this case map
       // is not updated yet).
       CHECK_EQ(map()->unused_property_fields(),
                actual_unused_property_fields - JSObject::kFieldsAdded);
     }
     DescriptorArray* descriptors = map()->instance_descriptors();
     Isolate* isolate = GetIsolate();
     for (int i = 0; i < map()->NumberOfOwnDescriptors(); i++) {
-      if (descriptors->GetDetails(i).type() == DATA) {
+      PropertyDetails details = descriptors->GetDetails(i);
+      if (details.location() == kField) {
+        DCHECK_EQ(kData, details.kind());
         Representation r = descriptors->GetDetails(i).representation();
         FieldIndex index = FieldIndex::ForDescriptor(map(), i);
         if (IsUnboxedDoubleField(index)) {
           DCHECK(r.IsDouble());
           continue;
         }
         Object* value = RawFastPropertyAt(index);
         if (r.IsDouble()) DCHECK(value->IsMutableHeapNumber());
         if (value->IsUninitialized(isolate)) continue;
         if (r.IsSmi()) DCHECK(value->IsSmi());
@@ skipping 1209 matching lines @@
 
   // Both are done at the same time.
   CHECK_EQ(new_it.done(), old_it.done());
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8