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