- fixed damage handling in A_BetaSkullAttack. For unknown reasons this completely bypassed the normal damage function semantics and even multiplied that with a random value.

- made some tests about calling script code from native functions.

 * scriptified A_SkullAttack to have something to test
 * changed the A_SkullAttack call in A_PainShootSkull.
 * use a macro to declare the function pointer. Using local static variable init directly results in hideous code for the need of being thread-safe (which, even if the engine was made multithreaded is not needed here.)
 * Importsnt node here: Apparently passing an actor pointer to the VMValue constructor results in the void * version being called, not the DObject * version.

src/scripting/decorate/thingdef_states.cpp

@@ -99,7 +99,9 @@ FxVMFunctionCall *DoActionSpecials(FScanner &sc, FState & state, Baggage &bag)
 		{
 			sc.ScriptError ("Too many arguments to %s", specname.GetChars());
 		}
-		return new FxVMFunctionCall(new FxSelf(sc), FindGlobalActionFunction("A_CallSpecial"), args, sc, false);
+		auto f = dyn_cast<PFunction>(RUNTIME_CLASS(AActor)->Symbols.FindSymbol("A_CallSpecial", false));
+		assert(f != nullptr);
+		return new FxVMFunctionCall(new FxSelf(sc), f, args, sc, false);
 	}
 	return NULL;
 }