[runtime] Use PropertyKind/PropertyLocation instead of PropertyType.

src/objects-inl.h

Index: src/objects-inl.h
diff --git a/src/objects-inl.h b/src/objects-inl.h
index 5ad593bfa6630d6fe0df69e71a15f6d8efe4a722..7b1a0904c704b4440f0199aaa58e9460dd6fb89e 100644
--- a/src/objects-inl.h
+++ b/src/objects-inl.h
@@ -2218,7 +2218,7 @@ int JSObject::GetHeaderSize(InstanceType type) {
     case JS_STRING_ITERATOR_TYPE:
       return JSStringIterator::kSize;
     case JS_MODULE_NAMESPACE_TYPE:
-      return JSModuleNamespace::kSize;
+      return JSModuleNamespace::kHeaderSize;
     default:
       if (type >= FIRST_ARRAY_ITERATOR_TYPE &&
           type <= LAST_ARRAY_ITERATOR_TYPE) {
@@ -2337,7 +2337,7 @@ void JSObject::FastPropertyAtPut(FieldIndex index, Object* value) {
 
 void JSObject::WriteToField(int descriptor, PropertyDetails details,
                             Object* value) {
-  DCHECK(details.type() == DATA);
+  DCHECK(details.location() == kField);
   DisallowHeapAllocation no_gc;
   FieldIndex index = FieldIndex::ForDescriptor(map(), descriptor);
   if (details.representation().IsDouble()) {
@@ -3208,14 +3208,6 @@ void DescriptorArray::SwapSortedKeys(int first, int second) {
 }
 
 
-PropertyType DescriptorArray::Entry::type() { return descs_->GetType(index_); }
-
-
-Object* DescriptorArray::Entry::GetCallbackObject() {
-  return descs_->GetValue(index_);
-}
-
-
 int HashTableBase::NumberOfElements() {
   return Smi::cast(get(kNumberOfElementsIndex))->value();
 }
@@ -4921,7 +4913,9 @@ bool Map::CanBeDeprecated() {
     if (details.representation().IsSmi()) return true;
     if (details.representation().IsDouble()) return true;
     if (details.representation().IsHeapObject()) return true;
-    if (details.type() == DATA_CONSTANT) return true;
+    if (details.kind() == kData && details.location() == kDescriptor) {
+      return true;
+    }
   }
   return false;
 }
@@ -5645,7 +5639,7 @@ void Map::AppendDescriptor(Descriptor* desc) {
 // it should never try to (otherwise, layout descriptor must be updated too).
 #ifdef DEBUG
   PropertyDetails details = desc->GetDetails();
-  CHECK(details.type() != DATA || !details.representation().IsDouble());
+  CHECK(details.location() != kField || !details.representation().IsDouble());
 #endif
 }