[clang] [OpenMP] Restore loop variable values after loop-transformation constructs. (PR #212853)

[Zahira Ammarguellat via cfe-commits]

zahiraam wrote:

> > > > @zahiraam In case you missed it we are seeing two failures on the Intel GPU CI machine that seem to be caused by this PR, can you please take a look? Thanks!
> > > > ```
> > > > Failed Tests (2):
> > > >   libomptarget :: spirv64-intel :: offloading/target-tile.c
> > > >   libomptarget :: x86_64-unknown-linux-gnu :: offloading/target-tile.c
> > > > ```
> > > 
> > > 
> > > Hi! We are seeing the same test failure with our bot. If the investigation might take longer, shall we revert to unblock bots? Thanks!
> > > https://lab.llvm.org/buildbot/#/builders/234
> > 
> > 
> > Would tomorrow be too late for a fix?
> 
> If it is not too inconvenient, we would appreciate if you could revert this PR so that we can bring the bot back to keep track the upstream build status.

OK. Reverting it.

https://github.com/llvm/llvm-project/pull/212853