RFR(S): 8191863: [s390] Fix CDS: some bytecode rewriting doesn't depend on RewriteControl

[Jiangli Zhou]

This change matches with other platforms. Looks good.

Thanks,
Jiangli

> On Nov 27, 2017, at 7:55 AM, Volker Simonis <volker.simonis at gmail.com> wrote:
> 
> Hi,
> 
> can I please have a review for the following small, s390-only change
> which fixes CDS on s390:
> 
> http://cr.openjdk.java.net/~simonis/webrevs/2017/8191863/
> https://bugs.openjdk.java.net/browse/JDK-8191863
> 
> The problem was that mistakenly rewrote zputfield into fast_zputfield
> although the active RewriteControl instance indicated that we
> shouldn't rewrite bytecodes.
> 
> With this change, all the CDS and upcoming AppCDS jtreg pass on Linux/s390.
> 
> Thank you and best regards,
> Volker