RFR: Verify TAMS and object sizes

[Roman Kennke]

Am 27.06.2017 um 21:25 schrieb Aleksey Shipilev:
> This change adds TAMS verification and object size fit checks to Verifier:
>   http://cr.openjdk.java.net/~shade/shenandoah/verifier-tams-sizes/webrev.01/
>
> Testing: hotspot_gc_shenandoah
>
> Thanks,
> -Aleksey
>
Yes! Thank you!