Function try_lower_named_function_call 

fn try_lower_named_function_call(
    func: &Expression,
    named_args: &[NamedArgument],
    ctx: &mut LoweringContext<'_>,
    instructions: &mut Vec<Instruction>,
) -> Option<bool>

Reorder named function call arguments into positional order and delegate to the standard function call lowering path.

Returns None if the callee is not a known function (caller should fall through to the error path). Returns Some(bool) on success or error.