`WrappingRange::is_full` computation assumed that to be full the range
couldn't wrap, which is not necessarily true.
For example, a range of 1..=0 is a valid representation of a full
wrapping range.
This change introduces a new module to StableMIR named `abi` with
information from `rustc_target::abi` and `rustc_abi`, that allow users
to retrieve more low level information required to perform
bit-precise analysis.
The layout of a type can be retrieved via `Ty::layout`, and the instance
ABI can be retrieved via `Instance::fn_abi()`.
To properly handle errors while retrieve layout information, we had
to implement a few layout related traits.
