Fix the HashMap performance regression.

Go back to the original cheap (and inline) secondary hash.
LinkedHashMap is a subclass of HashMap, so that has to change too.

Bug: 8290590
Change-Id: I7959a8ce8b8fc96e7f1d2c8a2a13fe83ef4c0dd5
use longs instead of ints to store pointers in ObjectStreamClass

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

Change-Id: Ie8dc3a7b3849c94e5cf37cf5c5e0c3231f5af26f
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