PropertyDetails cleanup: NORMAL property type merged with FIELD.

src/runtime/runtime-debug.cc

Index: src/runtime/runtime-debug.cc
diff --git a/src/runtime/runtime-debug.cc b/src/runtime/runtime-debug.cc
index 68d2f9e4777d0ef30b9e558345ef37039eca26cc..4a14a0f25496b5f8daadc8264313d846e2822079 100644
--- a/src/runtime/runtime-debug.cc
+++ b/src/runtime/runtime-debug.cc
@@ -136,8 +136,7 @@ RUNTIME_FUNCTION(Runtime_DebugGetPropertyDetails) {
         isolate, element_or_char,
         Runtime::GetElementOrCharAt(isolate, obj, index));
     details->set(0, *element_or_char);
-    details->set(1,
-                 PropertyDetails(NONE, NORMAL, Representation::None()).AsSmi());
+    details->set(1, PropertyDetails(NONE, FIELD, 0).AsSmi());
     return *isolate->factory()->NewJSArrayWithElements(details);
   }
 
@@ -159,7 +158,7 @@ RUNTIME_FUNCTION(Runtime_DebugGetPropertyDetails) {
   details->set(0, *value);
   // TODO(verwaest): Get rid of this random way of handling interceptors.
   PropertyDetails d = it.state() == LookupIterator::INTERCEPTOR
-                          ? PropertyDetails(NONE, NORMAL, 0)
+                          ? PropertyDetails(NONE, FIELD, 0)
                           : it.property_details();
   details->set(1, d.AsSmi());
   details->set(
@@ -214,7 +213,7 @@ RUNTIME_FUNCTION(Runtime_DebugPropertyIndexFromDetails) {
   SealHandleScope shs(isolate);
   DCHECK(args.length() == 1);
   CONVERT_PROPERTY_DETAILS_CHECKED(details, 0);
-  // TODO(verwaest): Depends on the type of details.
+  // TODO(verwaest): Works only for dictionary mode holders.
   return Smi::FromInt(details.dictionary_index());
 }