RFR: 8198564: Multiple crashes on SPARC

[Roman Kennke]

My change to typeArrayOop.hpp
(https://bugs.openjdk.java.net/browse/JDK-8197999) seems to have
caused some regressions, esp. on SPARC. The issue is that I'm
accidentally calling Access::store_at() with a type of jint and thus
generates a memory access wider than a jboolean. It seems to cause
SIGBUS on SPARC, but may also simply override adjacent array elements.

With some help by Stefan Karlsson, I made a little gtest (ok, he wrote
most of it, I only modified it to actually fail without the bugfix).

http://cr.openjdk.java.net/~rkennke/8198564/webrev.01

Would be good if somebody with access to SPARC could test it there,
and if ok, push it?

Thank you,
Roman