RFR (M): 8217778: StringTable cleanup miscalculates amount of dead objects

[Kim Barrett]

> On Jan 30, 2019, at 4:57 AM, Thomas Schatzl <thomas.schatzl at oracle.com> wrote:
> New webrevs:
> http://cr.openjdk.java.net/~tschatzl/8217778/webrev.0_to_1 (diff)
> http://cr.openjdk.java.net/~tschatzl/8217778/webrev.1 (full)
> 
> Thanks,
>  Thomas

Looks good.