PR #13241: [GPU] Fail on conflicting autotuning results.
PR #13241: [GPU] Fail on conflicting autotuning results.

Imported from GitHub PR https://github.com/openxla/xla/pull/13241


Copybara import of the project:

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99192a7119725e1b80153f8b29a229acb191c4f7 by Ilia Sergachev <isergachev@nvidia.com>:

[GPU] Fail on conflicting autotuning results.

Merging this change closes #13241

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/13241 from openxla:fail_on_result_conflict 99192a7119725e1b80153f8b29a229acb191c4f7
