[llvm] [Offload][Tests] Non-contiguous_update_to_tests (PR #169623)

[Amit Tiwari via llvm-commits]

amitamd7 wrote:

> Can these multiple and highly related patterns for single, partial, and multiple updates be tested in the same file?

No, as these update affect Clang’s internal data structures differently, not only in terms of handling strided data but also in how they manage the number of components involved. Each takes a distinct path in clang, hence, we would want them to work/fail independently.  

https://github.com/llvm/llvm-project/pull/169623