32-bit build failures after JDK-8227054

/home/shade/trunks/jdk-jdk/src/hotspot/share/gc/shared/weakProcessor.cpp: In member function 'void WeakProcessor::Task::initialize()':
/home/shade/trunks/jdk-jdk/src/hotspot/share/gc/shared/weakProcessor.cpp:119:42: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
     assert((cur_state - _storage_states) < storage_count, "invariant");
            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~