[Flang][OpenACC] fatal internal error: SemanticsContext::FindScope(): invalid source location for 'kernels loop'

[k-arrows]

See https://godbolt.org/z/YhPTend74

!$acc kernels loop gang
    do i = 1, 100
        a(i) = i + 1
    end do
!$acc end kernels loop
end

[llvmbot]

@llvm/issue-subscribers-flang-frontend

Author: None (k-arrows)

See https://godbolt.org/z/YhPTend74 ```f90 !$acc kernels loop gang do i = 1, 100 a(i) = i + 1 end do !$acc end kernels loop end ```