Macro shim_sig_arg 

macro_rules! shim_sig_arg {
    ($this:ident, i8) => { ... };
    ($this:ident, i16) => { ... };
    ($this:ident, i32) => { ... };
    ($this:ident, i64) => { ... };
    ($this:ident, i128) => { ... };
    ($this:ident, isize) => { ... };
    ($this:ident, u8) => { ... };
    ($this:ident, u16) => { ... };
    ($this:ident, u32) => { ... };
    ($this:ident, u64) => { ... };
    ($this:ident, u128) => { ... };
    ($this:ident, usize) => { ... };
    ($this:ident, ()) => { ... };
    ($this:ident, bool) => { ... };
    ($this:ident, *const _) => { ... };
    ($this:ident, *mut _) => { ... };
    ($this:ident, winapi::$ty:ident) => { ... };
    ($this:ident, $krate:ident :: $($path:ident)::+) => { ... };
    ($this:ident, $($other:tt)*) => { ... };
}

Helper for shim_sig!.

Converts a type