[9] RFR(XS): 8007987: ciConstantPoolCache::_keys should be array of 32bit int

[Tobias Hartmann]

Hi,

please review the following small patch that changes the type of the 
keys stored in the array from intptr_t to int. This is sufficient to 
store the 2 byte constant pool indexes and conforms to the interface 
where int is used.

Bug: https://bugs.openjdk.java.net/browse/JDK-8007987
Webrev: http://cr.openjdk.java.net/~thartmann/8007987/webrev.00/
Testing: JPRT

Thanks,
Tobias