Revert "Handle CALLBACKS correctly in IsProperty functions."

src/property-details.h

Index: src/property-details.h
diff --git a/src/property-details.h b/src/property-details.h
index c79aa969d344d1e795d79d9deb63329561c90fd3..81f521a627ac77457675ef9fb1f4dd8e55dfaa37 100644
--- a/src/property-details.h
+++ b/src/property-details.h
@@ -73,6 +73,26 @@ enum PropertyType {
 };
 
 
+inline bool IsRealProperty(PropertyType type) {
+  switch (type) {
+    case NORMAL:
+    case FIELD:
+    case CONSTANT_FUNCTION:
+    case CALLBACKS:
+    case HANDLER:
+    case INTERCEPTOR:
+      return true;
+    case MAP_TRANSITION:
+    case ELEMENTS_TRANSITION:
+    case CONSTANT_TRANSITION:
+    case NULL_DESCRIPTOR:
+      return false;
+  }
+  UNREACHABLE();  // keep the compiler happy
+  return false;
+}
+
+
 // PropertyDetails captures type and attributes for a property.
 // They are used both in property dictionaries and instance descriptors.
 class PropertyDetails BASE_EMBEDDED {