RFR [10]: Sync arraycopy barrier shape to sh/jdk

[Roman Kennke]

Am 10.04.2018 um 19:27 schrieb Aleksey Shipilev:
> http://cr.openjdk.java.net/~shade/shenandoah/sbs-ac-sync/webrev.01/
> 
> This backports the little change Roman did during sh/jdk upstream merge.

Yes.

For the record: this makes it explicit that we're dealing with
byte-size, and in jdk11 handles a compilation failure when trying to
deal with sizeof(void) (when T=void, which doesn't happen with jdk10 I
think).

Roman