[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:

> > AnalyzeLoopSequence
> 
> Could you point, where this is located?

Although now that i think about it, this function is not inside this PR but rather on the PR #139293, but the dependency is clear. 

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