crashhandler: set host.crashed before messagebox to allow platform code handle crashed state in different way

engine/common/crashhandler.c

@@ -490,13 +490,14 @@ static void Sys_Crash( int signal, siginfo_t *si, void *context)
 #ifdef XASH_SDL
 	SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
 #endif
+	host.crashed = true;
 	Platform_MessageBox( "Xash Error", message, false );
 
 	// log saved, now we can try to save configs and close log correctly, it may crash
 	if( host.type == HOST_NORMAL )
 		CL_Crashed();
 	host.status = HOST_CRASHED;
-	host.crashed = true;
+
 
 	Sys_Quit();
 }