[clang] [Clang][OpenMP][LoopTransformations] Fix incorrect number of generated loops for Tile and Reverse directives (PR #140532)

[Walter J.T.V via cfe-commits]

eZWALT wrote:

> It would be good to try to find the cases that may reveal this issues before committing the patch

Yes, i'll go through loop transformations tests and notify you tomorrow if this is the case, but i'm pretty sure that these are not breaking changes for the same reason that i told you on the other PR, NumGeneratedLoops is almost only being used in the CheckTransformableLoopNest and well i will have to check both ActOnOMPReverse/InterchangeDirective

https://github.com/llvm/llvm-project/pull/140532