Fix Functions unit tests for 32bit targets (#2468)
Fix Functions unit tests for 32bit targets (#2468)

* Compatible value for ll testing on 32 and 64 bit targets

firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk,firebase/firebase-ios-sdk