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de82143f509d8fd6e70efc9eaed35582054a7443 by Abseil Team <absl-team@google.com>:

Mark optional::reset() with the ABSL_ATTRIBUTE_REINITIALIZES attribute.

This prevents false positives in the clang-tidy check bugprone-use-after-move; it allows reset() to be called on a moved-from optional without any warnings, and the optional will thereafter be regarded as initialized again.

PiperOrigin-RevId: 210502364

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e645e68c44df957271e109aca6d68af530e27d04 by Derek Mauro <dmauro@google.com>:

Mark //absl/synchronization:thread_pool as only visible to internal
Abseil targets since it is internal-only.

PiperOrigin-RevId: 210406260

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09b53240efba9bf73190eaea91fe33b9eafc3529 by Abseil Team <absl-team@google.com>:

Add support for the [[clang::reinitializes]] attribute.

This will be used to prevent false positives in the clang-tidy check
bugprone-use-after-move.

PiperOrigin-RevId: 210377317
GitOrigin-RevId: de82143f509d8fd6e70efc9eaed35582054a7443
Change-Id: Ibac1ee694f7b5b9f5aff8670559e49505ff8ee11