`Const::size()` returns int, so change iterators that use it to `auto` instead of `size_t`. For cases where size is being explicitly cast to `int`, use the wrapper that we already have instead: `Yosys::GetSize()`.
`Const::size()` returns int, so change iterators that use it to `auto` instead of `size_t`. For cases where size is being explicitly cast to `int`, use the wrapper that we already have instead: `Yosys::GetSize()`.