RFR: 8201171: Cleanup in g1CollectedHeap, change CamelCase to snake_case

[Thomas Schatzl]

Hi,

On Thu, 2018-04-05 at 13:50 +0200, Leo Korinth wrote:
> Hi,
> 
> I am cleaning up code with regard to style: CamelCase to snake_case.
> 
> _cmThread -> _cm_thread
> isMarkedNext(oop obj) -> is_marked_next(oop obj)
> 
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8201171
> 
> Webrev:
> http://cr.openjdk.java.net/~lkorinth/8201171/00/index.html

  looks good.

Thomas