RFR (XXS): 8033106 Wrong predicate for checking whether the correct amount of symbol table entries have been processed in G1

[Thomas Schatzl]

Hi all,

  can I have reviews for the following tiny change?

In the review for the 7u60 backport for 8027476 (stringtable and symbol
table parallelization) Mikael found this issue (thanks!) during review:
the sanity checking code after string table and symbol table scan used
one predicate meant for the string table checking in the symbol table
checks.

This went unnoticed because the symbol table is scanned always when
calling the method that starts string/symbol table scan, so the second
part of the expression always holds.

Also fixes the copyright date.

Webrev:
http://cr.openjdk.java.net/~tschatzl/8033106/webrev/

Bug:
https://bugs.openjdk.java.net/browse/JDK-8033106

Testing:
jprt

Thanks,
  Thomas