Don't save code property of VisualShader

Author: KoBeWi

scene/resources/visual_shader.cpp

@@ -2057,6 +2057,12 @@ void VisualShader::_get_property_list(List<PropertyInfo> *p_list) const {
 	}
 }
 
+void VisualShader::_validate_property(PropertyInfo &p_property) const {
+	if (p_property.name == "code") {
+		p_property.usage = PROPERTY_USAGE_NONE;
+	}
+}
+
 Error VisualShader::_write_node(Type type, StringBuilder *p_global_code, StringBuilder *p_global_code_per_node, HashMap<Type, StringBuilder> *p_global_code_per_func, StringBuilder &r_code, Vector<VisualShader::DefaultTextureParam> &r_def_tex_params, const HashMap<ConnectionKey, const List<Connection>::Element *> &p_input_connections, int p_node, HashSet<int> &r_processed, bool p_for_preview, HashSet<StringName> &r_classes) const {
 	const Ref<VisualShaderNode> vsnode = graph[type].nodes[p_node].node;
 

scene/resources/visual_shader.h

@@ -172,6 +172,7 @@ class VisualShader : public Shader {
 	bool _set(const StringName &p_name, const Variant &p_value);
 	bool _get(const StringName &p_name, Variant &r_ret) const;
 	void _get_property_list(List<PropertyInfo> *p_list) const;
+	void _validate_property(PropertyInfo &p_property) const;
 
 	virtual void reset_state() override;