RFR: 8203490: StringTable::dump lacks a load barrier

[Stefan Karlsson]

Hi all,

Please review this patch to add a missing load barrier to StringTable::dump.

http://cr.openjdk.java.net/~stefank/8203490/webrev.01

Most of the loads where fixed with the following changeset:

   http://hg.openjdk.java.net/jdk/jdk/rev/688e5cbd0b91
   8192003: Refactor weak references in StringTable to use the Access API

but the StringTable::dump function wasn't updated. This patch adds the 
missing load barrier.

Thanks,
StefanK