Request for reviews (XS): 6773078: UseCompressedOops: assert(kid == 0L || s->_leaf->in(0) == 0L,"internal operands have no control")

[Vladimir Kozlov]

http://webrev.invokedynamic.info/kvn/6773078/index.html

Fixed 6773078: UseCompressedOops: assert(kid == 0L || s->_leaf->in(0) == 0L,"internal operands have 
no control")

Problem:
The regression introduced by 6462850 changes.

Solution:
Don't set the control edge of a klass load node.

Reviewed by:
Fix verified (y/n): y

Other testing:
JPRT, CTW (running now)