Get rid of the NONEXISTENT PropertyType

src/lookup.h

Index: src/lookup.h
diff --git a/src/lookup.h b/src/lookup.h
index 5fbc10b0daba58ff0602836f7d4be9fa23be197f..84bdc7b4996a3f3b50ac60b22634846b6774c3b1 100644
--- a/src/lookup.h
+++ b/src/lookup.h
@@ -69,7 +69,7 @@ class LookupIterator V8_FINAL BASE_EMBEDDED {
         state_(NOT_FOUND),
         property_kind_(DATA),
         property_encoding_(DESCRIPTOR),
-        property_details_(NONE, NONEXISTENT, Representation::None()),
+        property_details_(NONE, NORMAL, Representation::None()),
         isolate_(name->GetIsolate()),
         name_(name),
         maybe_receiver_(receiver),
@@ -87,7 +87,7 @@ class LookupIterator V8_FINAL BASE_EMBEDDED {
         state_(NOT_FOUND),
         property_kind_(DATA),
         property_encoding_(DESCRIPTOR),
-        property_details_(NONE, NONEXISTENT, Representation::None()),
+        property_details_(NONE, NORMAL, Representation::None()),
         isolate_(name->GetIsolate()),
         name_(name),
         holder_map_(holder->map()),