RFR(XS): 8216269: [s390] Debug build broken because CodeBlob has not been declared

[Doerr, Martin]

Hi,

we are getting the following build error on s390:

In file included from .../jdk/src/hotspot/share/code/relocInfo.hpp:427:0,
.../jdk/src/hotspot/cpu/s390/relocInfo_s390.hpp:119:78: error: 'CodeBlob' has not been declared
   static bool update_oop_pool(address begin, address end, address newTarget, CodeBlob* cb);
                                                                              ^~~~~~~~

Please review this tiny fix:
http://cr.openjdk.java.net/~mdoerr/8216269_s390_fix_build/webrev.00/

Best regards,
Martin