[Bug libgomp/92984] New: [OpenACC] 'exit data' with size zero fails due to 'GOMP_MAP_ZERO_LEN_ARRAY_SECTION'

[tschwinge at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92984

            Bug ID: 92984
           Summary: [OpenACC] 'exit data' with size zero fails due to
                    'GOMP_MAP_ZERO_LEN_ARRAY_SECTION'
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: openacc
          Severity: normal
          Priority: P3
         Component: libgomp
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tschwinge at gcc dot gnu.org
                CC: jakub at gcc dot gnu.org
  Target Milestone: ---

For example:

    #pragma acc exit data copyout (a[0:0])

    libgomp: >>>> GOACC_enter_exit_data UNHANDLED kind 0x0f

Similar to PR92970, this probably should be a no-op?  Clarifying that with
OpenACC Technical Committee.