RFR: Reapply missing changesets after sh/jdk10 merge

[Aleksey Shipilev]

On 02/19/2018 10:51 AM, Aleksey Shipilev wrote:
> http://cr.openjdk.java.net/~shade/shenandoah/reapply-after-merge-1/webrev.01/
> 
> Roman had accidentally reverted some recent changesets when doing the merge. This reapplies them
> back to sh/jdk10.

These are the changesets in this bundle:

 [re-apply] Prevent accidental UseShenandoahMatrix enabling
 [re-apply] Cleanup and strengthen BrooksPointer verification
 [re-apply] Remove BS:is_safe in favor of logged BS::verify_safe_oop
 [re-apply] Rich assertion failure logging + Improve assertion/verification messages a bit
 [re-apply] Rename *_oop_static/oop_ref to *_forwarded
 [re-apply] Get easy on template instantiations in ShConcMark

Roman, please verify those are the only changesets affected?

Thanks,
-Aleksey