Enable alias analysis for omp private clause for code:
```
program main
integer :: arrayA(10,10)
integer :: tmp(2)
integer :: i,j
!$omp target teams distribute parallel do private(tmp)
do j = 1, 10
do i = 1,10
tmp = [i,j]
arrayA = tmp(1)
end do
end do
end program main
```
This PR is based on: https://github.com/llvm/llvm-project/pull/113566
and it contains fix for Fujitsu test suite. Previous PR introduced
regression in Fujitsu test suite. For some Fujitsu test cases
`omp.yield` operation points to block argument. Alias analysis for such
MLIR code will be added in separate PR.
4213bca871