[runtime] Use PropertyKind/PropertyLocation instead of PropertyType.

src/transitions.cc

Index: src/transitions.cc
diff --git a/src/transitions.cc b/src/transitions.cc
index 88c1549579d6d63ff31cd0eee70232ad11b158da..5333fa6e25d28b58233e30bb93ec94095d3e5c42 100644
--- a/src/transitions.cc
+++ b/src/transitions.cc
@@ -202,7 +202,8 @@ Handle<Map> TransitionArray::FindTransitionToField(Handle<Map> map,
   if (target == NULL) return Handle<Map>::null();
   PropertyDetails details = target->GetLastDescriptorDetails();
   DCHECK_EQ(NONE, details.attributes());
-  if (details.type() != DATA) return Handle<Map>::null();
+  if (details.location() != kField) return Handle<Map>::null();
+  DCHECK_EQ(kData, details.kind());
   return Handle<Map>(target);
 }
 
@@ -214,7 +215,8 @@ Handle<String> TransitionArray::ExpectedTransitionKey(Handle<Map> map) {
   if (!IsSimpleTransition(raw_transition)) return Handle<String>::null();
   Map* target = GetSimpleTransition(raw_transition);
   PropertyDetails details = GetSimpleTargetDetails(target);
-  if (details.type() != DATA) return Handle<String>::null();
+  if (details.location() != kField) return Handle<String>::null();
+  DCHECK_EQ(kData, details.kind());
   if (details.attributes() != NONE) return Handle<String>::null();
   Name* name = GetSimpleTransitionKey(target);
   if (!name->IsString()) return Handle<String>::null();