- moved thinker storage into FLevelLocals.

src/p_setup.cpp

@@ -253,6 +253,7 @@ void FLevelLocals::ClearPortals()
 
 void FLevelLocals::ClearLevelData()
 {
+	Thinkers.DestroyAllThinkers();
 	ClearAllSubsectorLinks(); // can't be done as part of the polyobj deletion process.
 
 	total_monsters = total_items = total_secrets =
@@ -349,8 +350,6 @@ void P_FreeLevelData ()
 	E_Shutdown(true);
 	R_FreePastViewers();
 
-	Thinkers.DestroyAllThinkers ();
-
 	level.ClearLevelData();
 }
 
@@ -574,7 +573,7 @@ void P_Init ()
 
 static void P_Shutdown ()
 {
-	Thinkers.DestroyThinkersInList(STAT_STATIC);
+	level.Thinkers.DestroyThinkersInList(STAT_STATIC);
 	P_FreeLevelData ();
 	// [ZZ] delete global event handlers
 	E_Shutdown(false);