[flang-commits] [flang] [OpenMP][Flang] Add "IsolatedFromAbove" trait to omp.target (PR #67164)

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agozillon wrote:

> > That is a good point. I guess, we could distinguish between `user-provided` mapping and `implicit` mapping by adding another field to `omp.map_info` and then subsequent passes in MLIR can update or replace the `implicit` mappings. The `implicit` mappings can start by assuming the worst case if there are variables involved.
> 
> We can check the map_type flag for the `OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT` bit to determine if the map came from the user or was implicitly captured.

also works just as well, I forgot we were moving to this method! So can ignore my previous response. 

https://github.com/llvm/llvm-project/pull/67164