Review request (S): 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency

[Stefan Karlsson]

http://cr.openjdk.java.net/~stefank/8005002/webrev.00/

This is a fix for a crash seen the nightly comp testing in the test:
vm/mlvm/indy/stress/gc/lotsOfCallSites

We have a raw oop while calling out to an allocation function that might 
block for GC. If a GC enters, it might move the Object but will not 
update the oop. Make sure that we wrap the oop in a handle before 
calling the allocation function.

StefanK