Codechange: support strongly typed pool element IDs in squirrel/saveload

src/script/squirrel.hpp

@@ -11,6 +11,7 @@
 #define SQUIRREL_HPP
 
 #include <squirrel.h>
+#include "../core/convertible_through_base.hpp"
 
 /** The type of script we're working with, i.e. for who is it? */
 enum class ScriptType : uint8_t {
@@ -110,6 +111,8 @@ public:
 	 */
 	void AddConst(const char *var_name, uint value) { this->AddConst(var_name, (int)value); }
 
+	void AddConst(const char *var_name, const ConvertibleThroughBase auto &value) { this->AddConst(var_name, static_cast<int>(value.base())); }
+
 	/**
 	 * Adds a const to the stack. Depending on the current state this means
 	 *  either a const to a class or to the global space.
@@ -152,6 +155,7 @@ public:
 	void InsertResult(bool result);
 	void InsertResult(int result);
 	void InsertResult(uint result) { this->InsertResult((int)result); }
+	void InsertResult(ConvertibleThroughBase auto result) { this->InsertResult(static_cast<int>(result.base())); }
 
 	/**
 	 * Call a method of an instance, in various flavors.