RFR(M/L): 6484982: G1: process references during evacuation pauses

[Tony Printezis]

>>>
>>> thread.cpp
>>> - only bracket changes. Don't include in thins change.
>>
>> I had debugging code in here and so left the 'correctly' formatted 
>> code after removing the debugging statements. Since I've already been 
>> thanked for doing this - I would leave it.
>
> Sorry for being persistent but we think this is not a good enough 
> reason to leave it in.

Bengt, I respectfully disagee. IMHO, it's OK to piggy-back small cleanup 
like this on a changeset, to keep such cleanup reasonably low-overhead, 
since it's clearly positive for the codebase. What's the alternative? 
Open a separate CR for it? This means that we'll have to open the CR, 
get a separate changeset code reviewed, and push it with a separate JPRT 
job. This is a fair amount of overhead for reformatting a few brackets 
and, in all honesty, folks will not be prepared to do that.

Tony