update static table class reference in updateClassTables
update static table class reference in updateClassTables

Commit c918cbc added this reference to ensure
sun.misc.Unsafe.getLongVolatile could be implemented efficiently on
32-bit platforms.  However, I neglected to ensure the reference was
updated to point to the final class instance instead of the temporary
one used in parseClass.  This led to extra memory usage and
inconsistent locking behavior, plus broken bootimage builds.

marcinolawski/avian,ucdseniordesign/avian,getlantern/avian,lostdj/avian,lostdj/avian,ucdseniordesign/avian,minor-jason/avian,ucdseniordesign/avian,lostdj/avian,getlantern/avian,bigfatbrowncat/avian-pack.avian,getlantern/avian,joshuawarner32/avian,getlantern/avian,bgould/avian,joshuawarner32/avian,MaartenR/avian,MaartenR/avian,lwahlmeier/avian,dicej/avian,minor-jason/avian,joshuawarner32/avian,ucdseniordesign/avian,bigfatbrowncat/avian-pack.avian,marcinolawski/avian,bgould/avian,lostdj/avian,bgould/avian,MaartenR/avian,bigfatbrowncat/avian-pack.avian,bigfatbrowncat/avian-pack.avian,bgould/avian,joshuawarner32/avian,marcinolawski/avian,lwahlmeier/avian,lwahlmeier/avian,dicej/avian,lwahlmeier/avian,marcinolawski/avian,dicej/avian,minor-jason/avian,dicej/avian,minor-jason/avian,MaartenR/avian