Add assume into `NonZeroIntX::get` LLVM currently don't support range metadata for function arguments so it fails to optimize non zero integers using their invariant if they are provided using by-value function arguments. Related to https://github.com/rust-lang/rust/issues/119422 Related to https://github.com/llvm/llvm-project/issues/76628 Related to https://github.com/rust-lang/rust/issues/49572