RFR (S): JDK-8034000 lack of /othervm option can cause some RMI tests to fail

[Stuart Marks]

Hi all,

The RMI test directories were removed from TEST.ROOT's othervm.dirs by 
JDK-8031179 so that individual RMI tests could opt-in to othervm themselves. 
Unfortunately, some tests needed othervm but didn't get it, causing them to fail.

This adds othervm to some failing tests, and adds a note to other tests that do 
not have othervm indicating specifically that they don't need othervm.

Bug:

     https://bugs.openjdk.java.net/browse/jdk-8034000

Webrev:

     http://cr.openjdk.java.net/~smarks/reviews/8034000/webrev.0/

Thanks,

s'marks