RFR: Command line flags cleanup

[Stefan Karlsson]

Looks good.

StefanK

On 2018-03-16 09:57, Per Liden wrote:
> Two patches to clean up our command line flags. One to remove 
> UseLoadBarrier. It's a dangerous flag to use but was useful in early 
> development phases, but not so much any more. If UseZGC is true, then 
> UseLoadBarrier should also always be true. The second patch converts our 
> debugging-related options to diagnostic flags (instead of being product 
> flags).
> 
> * ZGC: Remove UseLoadBarrier command line flag
> http://cr.openjdk.java.net/~pliden/zgc/remove_use_load_barrier_flag/webrev.0 
> 
> 
> * ZGC: Make some command line flags diagnostic instead of product
> http://cr.openjdk.java.net/~pliden/zgc/make_some_flags_diagnostic/webrev.0
> 
> /Per