Export of internal Abseil changes
Export of internal Abseil changes

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30b56a21feab3443ba40cf97a3bfaa3d5b3bc964 by Derek Mauro <dmauro@google.com>:

Fix conversion warnings on 32-bit MSVC

Fixes #582

PiperOrigin-RevId: 325509591
GitOrigin-RevId: 30b56a21feab3443ba40cf97a3bfaa3d5b3bc964
Change-Id: Icf1786a974eb88ca417cd428c0ce43e8ee8048e7

firebase/abseil-cpp,firebase/abseil-cpp,firebase/abseil-cpp,abseil/abseil-cpp,abseil/abseil-cpp,abseil/abseil-cpp,firebase/abseil-cpp,abseil/abseil-cpp