define_base_case 2545 src/Func.cpp       return define_base_case(func, a, Tuple(e));
define_base_case 2557 src/Func.cpp       FuncRef self_ref = define_base_case(func, expanded_args, Tuple(init_values))(expanded_args);
define_base_case 2569 src/Func.cpp       FuncRef self_ref = define_base_case(func, expanded_args, cast(e.type(), init_val))(expanded_args);