This patch fixed 32bit conversion warning (-Wshorten-64-to-32) as seem from default SPM build in gRPC C-Core native source.
Note that these are direct conversion fixes addressing the 32bit build warnings as observed in downstream projects. Upstream fixes are done via https://github.com/grpc/grpc-ios/issues/83
Build Test Verification
Run SPM sample app build with -Wshorten-64-to-32 turned on
./scripts/./build_test_spm_samples.sh
This patch fixed 32bit conversion warning (-Wshorten-64-to-32) as seem from default SPM build in gRPC C-Core native source.
Build Test Verification
cc @HannahShiSFB @sampajano