RFR: Pre LRB cleanup

[Roman Kennke]

I swept through:

https://builds.shipilev.net/patch-openjdk-shenandoah-jdk/index.html

and found two minor things that we should clean up:

http://cr.openjdk.java.net/~rkennke/pre-lrb-cleanup/webrev.00/

The rest looks ok to me. There are some discrepancies that are there 
because of mismatched sh/jdk vs. jdk/jdk, which will get resolve on next 
upstream merge I suppose.


Testing: hotspot_gc_shenandoah

Ok to push?

Roman