RFR(tedious): 8218089: Rename DirtyCardQueue et al to follow usual G1 naming conventions

[Kim Barrett]

> On Feb 13, 2019, at 6:55 AM, Leo Korinth <leo.korinth at oracle.com> wrote:
> 
> Looks good, thanks for cleaning!
> 
> Add copyright (ranges) in the files below before pushing:
> src/hotspot/cpu/ppc/gc/g1/g1BarrierSetAssembler_*.cpp
> src/hotspot/share/gc/g1/g1ThreadLocalData.hpp

Oops, thanks for noticing those.