Function swap

library/cpp/yt/memory/blob.cpp:224–235

}

void swap(TBlob& left, TBlob& right)
{
    if (&left != &right) {
        std::swap(left.Begin_, right.Begin_);
        std::swap(left.Size_, right.Size_);
        std::swap(left.Capacity_, right.Capacity_);
        std::swap(left.PageAligned_, right.PageAligned_);
#ifdef YT_ENABLE_REF_COUNTED_TRACKING
        std::swap(left.TagCookie_, right.TagCookie_);
#endif
    }
}

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