- made TObjPtr as trivial as possible.

Mainly to avoid problems with Raze, but eliminating this constructor lets us catch erroneous local definitions via 'auto', which can cause major problems if left undetected.

src/playsim/fragglescript/t_load.cpp

@@ -315,6 +315,6 @@ void T_AddSpawnedThing(FLevelLocals *Level, AActor * ac)
 	if (Level->FraggleScriptThinker)
 	{
 		auto &SpawnedThings = Level->FraggleScriptThinker->SpawnedThings;
-		SpawnedThings.Push(GC::ReadBarrier(ac));
+		SpawnedThings.Push(MakeObjPtr<AActor*>(ac));
 	}
 }