Generates the rpc and rset info for exported GDScript.

Improved the send rpc log message when fail.

This work has been kindly sponsored by IMVU.

modules/gdscript/gdscript.h

@@ -134,6 +134,7 @@ class GDScript : public Script {
 	bool _update_exports();
 
 	void _save_orphaned_subclasses();
+	void _init_rpc_methods_properties();
 
 protected:
 	bool _get(const StringName &p_name, Variant &r_ret) const;