Tighten OpenHandle's extra checks.

src/objects-inl.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 201 matching lines @@
 }
 
 
 bool Object::IsSpecFunction() {
   if (!Object::IsHeapObject()) return false;
   InstanceType type = HeapObject::cast(this)->map()->instance_type();
   return type == JS_FUNCTION_TYPE || type == JS_FUNCTION_PROXY_TYPE;
 }
 
 
+bool Object::IsTemplateInfo() {
+  return IsObjectTemplateInfo() || IsFunctionTemplateInfo();
+}
+
+
 bool Object::IsInternalizedString() {
   if (!this->IsHeapObject()) return false;
   uint32_t type = HeapObject::cast(this)->map()->instance_type();
   STATIC_ASSERT(kNotInternalizedTag != 0);
   return (type & (kIsNotStringMask | kIsNotInternalizedMask)) ==
       (kStringTag | kInternalizedTag);
 }
 
 
 bool Object::IsConsString() {
@@ skipping 6795 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_