need more LIBCUCKOO_SQUELCH_PADDING_WARNING

[grandinj]

hi

thanks for this awesome project!

with latest MSVC, warnings have moved around, and we need an extra warning suppress, like this:

bool &is_migrated() noexcept { return is_migrated_; }
bool is_migrated() const noexcept { return is_migrated_; }

private:
std::atomic_flag lock_;
counter_type elem_counter_;
bool is_migrated_;
LIBCUCKOO_SQUELCH_PADDING_WARNING
};

[manugoyal]

Hi Noel, thanks for reporting! I don't have MSVC myself, so I can't verify too easily. But I would be happy to accept a pull request that suppresses these warnings.