RFR (XS): 8224038: Fix remaining InCSetState mentions

[Kim Barrett]

On May 16, 2019, at 8:49 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> 
> Hi all,
> 
>  in JDK-8200545 there has been some renaming of the InCSetState class
> to G1RegionAttr class.
> 
> Some comments and class names still mention it.
> 
> This change fixes this.
> 
> CR:
> https://bugs.openjdk.java.net/browse/JDK-8224038
> Webrev:
> http://cr.openjdk.java.net/~tschatzl/8224038/webrev/
> Testing:
> local compilation
> 
> Thanks,
>  Thomas
> 
> 

Looks good, and trivial.