CRR (XS): 7098085: G1: partially-young GCs not initiated under certain circumstances

[Tony Printezis]

Hi,

I'd like to get a couple of people to have a look at the following webrev:

http://cr.openjdk.java.net/~tonyp/7098085/webrev.0/

The code changes are very minor, most of the added lines are in fact 
detailed comments on the changes.

I'm going to do testing on two machines overnight, as this is quite 
tricky code (even though it doesn't look it). But, I thought I'd open 
the changes for code review early as the change is small and some early 
feedback, if possible, would be greatly appreciated.

Tony

PS Correct url? Check. Text actually applies to the CR in the subject? 
Check.