use longs instead of ints to store pointers in ExpatParser

This allows the class to be used on 64-bit VMs.  I've also changed
ExpatAttributes to match.

Change-Id: I4340040085b517b6f713623755f4647e190a68a9
use longs instead of ints to store pointers in NativeDecimalFormat

This allows the class to be used on 64-bit VMs.

Change-Id: Ie32d72f2f3c80d34a3da0fa08fcd96ed45793473