RFR (S) 8232788: Move biased locking initalization

[coleen.phillimore at oracle.com]

Summary: Move from before adding to the dictionary to during 
InstanceKlass construction, which occurs right before.

Tested with tier1 all Oracle platforms, tier 2-3, linux-x64-debug, tier1 
with -XX:BiasedLockingDelay=100, and gtest with -XX:-UseBiasedLocking.

open webrev at http://cr.openjdk.java.net/~coleenp/2019/8232788.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8232788

Thanks,
Coleen