[flang-commits] [flang] [semantics][acc] start handling clauses that use sections and components (PR #211606)

[Eugene Epshteyn via flang-commits]

eugeneepshteyn wrote:

Another example from AI agent:
```fortran
integer :: a, b
common /cb/ a, b
!$acc parallel loop private(/cb/) firstprivate(/cb/)   ! baseline: error; PR: silent, lowers private+firstprivate recipes for the same storage
```

https://github.com/llvm/llvm-project/pull/211606