[flang] [llvm] [flang][OpenMP] Add parsing support for Task detach (PR #112312)

[via llvm-commits]

NimishMishra wrote:

Can anyone suggest on how to fix the buildbot failure on `openmp-offload-sles-build-only`

Issue: "Cannot read module file for module 'omp_lib': Source file 'omp_lib.mod' was not found"

We need the module file to access `omp_event_handle_kind` while defining the event handle. Is there a way to disable the test on a target when the module file is missing? 

https://github.com/llvm/llvm-project/pull/112312