Macro bind_interrupts

macro_rules! bind_interrupts {
    ($vis:vis struct $name:ident {
        $(
            $(#[cfg($cond_irq:meta)])?
            $irq:ident => $(
                $(#[cfg($cond_handler:meta)])?
                $handler:ty
            ),*;
        )*
    }) => { ... };
    (@inner $($t:tt)*) => { ... };
}