Fix iOS arm64 build related error in GTMAddressBook.
Fix iOS arm64 build related error in GTMAddressBook.

Under arm64, CFIndex (which was used for GTMABPropertyType) has gone 64-bit but ABPropertyType is still 32 bits in the iOS AddressBook.framework. So all the places where we're passing GTMABPropertyTypes where it expects an ABPropertyType break on the 64->32 truncation warning.


isongga/google-toolbox-for-mac,isongga/google-toolbox-for-mac,isongga/google-toolbox-for-mac