Small problem in const support of array initialization

[iulianR]

Hello, I noticed that this doesn't work (cbindgen doesn't generate the struct definition):

const LENGTH: usize = 127;

#[repr(C)]
pub struct Data {
    pub d: [u8; LENGTH + 1],
}

After finding about #53, I changed it to this and it now works:

const LENGTH: usize = 127 + 1;

#[repr(C)]
pub struct Data {
    pub d: [u8; LENGTH],
}

It's not such a big deal for me, but maybe it's worth investigating at some point. If it's trivial, let me know and I might make the change myself. Thanks!

[emilio]

Yeah, I'd expect that to work. We should probably dig a bit where stuff is going wrong.