Now committed as r14-2754-g2e31fe431b08b0 with a minor addition:

On 24.07.23 22:05, Tobias Burnus wrote:
> The current patch rejects nested blocks, be it 'omp target; block;
> block; omp teams;'
which was before in the testcase. But now also
> or be it 'omp target; block; block;end block; omp teams'.
is tested for.

Somehow, the second dg-error line in an modified testcase did not make
it in the first commit; now fixed in r14-2759-g50656980497d77

Tobias.
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