RFR: 8200371: In g1, rename ConcurrentMarkThread to G1ConcurrentMarkThread

[Thomas Schatzl]

Hi Leo,

On Thu, 2018-03-29 at 17:09 +0200, Leo Korinth wrote:
> Hi,
> 
> I am renaming ConcurrentMarkThread to G1ConcurrentMarkThread.
> 
> Bug:
> https://bugs.openjdk.java.net/browse/JDK-8200371
> 
> Webrev:
> http://cr.openjdk.java.net/~lkorinth/8200371/00/index.html
> 
> Testing:
> - building with and without precompiled headers
> - hs-tier1, hs-tier2

Looks good.

Some potential followup change could rename the _cmThread variable in
G1CollectedHeap to _cm_thread; not sure if it worth an extra CR for
that though, depending on how many other similar problems the
G1CollectedHeap files have.

Thanks,
 Thomas