7145441: G1: collection set chooser-related cleanup Summary: Cleanup of the CSet chooser class: standardize on uints for region num and indexes (instead of int, jint, etc.), make the method / field naming style more consistent, remove a lot of dead code. Reviewed-by: johnc, brutisso

7157073: G1: type change size_t -> uint for region counts / indexes Summary: Change the type of fields / variables / etc. that represent region counts and indeces from size_t to uint. Reviewed-by: iveresov, brutisso, jmasa, jwilhelm

7160613: VerifyRememberedSets doesn't work with CompressedOops Summary: use load_decode_heap_oop instead of load_decode_heap_oop_not_null Reviewed-by: tonyp, brutisso