8034102: Check solaris/native/sun/nio/fs/MacOSXNativeDispatcher.c for JNI pending exceptions

[Alan Bateman]

There is another bug report about JNI code not handling exceptions. In 
this case it's an OS X specific native method that was missed during the 
recent clean-ups in this area. The changes are trivial:

http://cr.openjdk.java.net/~alanb/8034102/webrev/

Thanks,
Alan.