Imported from GitHub PR https://github.com/abseil/abseil-cpp/pull/1783

Today we cannot build V8 (which uses the Abseil library) in strict mode for RISC-V due to a few warnings in debbugging inlines. All the warnings are about implicit signed to unsigned conversion and precision losses, nothing serious, but they are still very annoying.

Merge 7b2a865021ca18e3666c544000b6b1258964f6c4 into 8596c6e7

Merging this change closes #1783

COPYBARA_INTEGRATE_REVIEW=https://github.com/abseil/abseil-cpp/pull/1783 from apavlyutkin:riscv-fix-warnings 7b2a865021ca18e3666c544000b6b1258964f6c4
PiperOrigin-RevId: 693802454
Change-Id: Ibfefc9370606a6b8ec217ac6d87d7c6d70d1a3ce