RFR: Integration from jdk/jdk

[Aleksey Shipilev]

On 04/10/2018 05:10 PM, Roman Kennke wrote:
> http://cr.openjdk.java.net/~rkennke/merge-2018-04-09/shenandoah-changes.patch

The T* -> char* change in shenandoahBarrierSet.inline.hpp -- is it needed in sh/jdk10?

> I've finished running the tests and fixed a bunch of failures. It's
> clean now. Good to go?

OK.

Thanks,
-Aleksey