RFR: 8199604: Rename CardTableModRefBS to CardTableBarrierSet

[Erik Österlund]

Hi,

After collapsing barrier sets, it seems like CardTableModRefBS is the 
only barrier set that encodes "ModRef" in its name and uses the "BS" 
suffix instead of spelling out "BarrierSet".

This is a weird inconsistency that I have solved by renaming 
CardTableModRefBS to CardTableBarrierSet.

Files were renamed like this:
parCardTableModRefBS.cpp => cmsCardTable.cpp (this file contains a bunch 
of implementations for the card table used by CMS and is in the CMS 
directory)
cardTableModRefBS.cpp => cardTableBarrierSet.cpp
cardTableModRefBS.hpp => cardTableBarrierSet.hpp
cardTableModRefBS.inline.hpp => cardTableBarrierSet.inline.hpp

I have performed an automatic search and replace to rename 
CardTableModRefBS to CardTableBarrierSet, and manually clicked through 
everything to make sure that space alignment, comments, etc all look as 
they should. I have also checked that the SA agent is not affected and 
run hs-tier1 on this changeset.

Despite the fix being a bit lengthy, I would still prefer to consider it 
trivial (unless somebody opposes that) as I am only renaming a class in 
a rather mechanical way. Hope we can agree about that.

Webrev:
http://cr.openjdk.java.net/~eosterlund/8199604/webrev.00/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8199604

Testing:
mach5 hs-tier1-3

Thanks,
/Erik