RFR (S) 8199272: Broken assertion in ClassLoaderData::remove_handle

[coleen.phillimore at oracle.com]

Summary: Added new ClassLoaderData::ChunkList::contains(oop*) function 
for OopHandle rather than oop (need both)

Fixed problem found by Stefan in code review for 
https://bugs.openjdk.java.net/browse/JDK-8198926

Ran tier1-5 tests in mach5.

open webrev at http://cr.openjdk.java.net/~coleenp/8199272.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8199272

Thanks,
Coleen