Request for review (s) - 6895236

[Jon Masamitsu]

6895236: CMS: cmsOopClosures.inline.hpp:43 assert(..., "Should remember 
klasses in this context")

Some assertion checking code was added for debugging the fix for
6798898. This CR is for a fix of that assertion checking code.

http://cr.openjdk.java.net/~jmasa/6895236/webrev.00/

Thanks.