Codechange: do not declare functions in blocks

src/openttd.h

@@ -79,10 +79,13 @@ void AskExitGame();
 void AskExitToGameMenu();
 
 int openttd_main(int argc, char *argv[]);
+void StateGameLoop();
 void HandleExitGameRequest();
 
 void SwitchToMode(SwitchMode new_mode);
 
 bool RequestNewGRFScan(struct NewGRFScanCallback *callback = nullptr);
 
+void OpenBrowser(const char *url);
+
 #endif /* OPENTTD_H */