RFR (S) 8193053: jvm crash by G1CMBitMapClosure::do_addr

[Kim Barrett]

> On Dec 11, 2017, at 5:09 PM, coleen.phillimore at oracle.com wrote:
> 
> Summary: We were adding an unloaded mirror to the SATB collection set in remove_handle.
> 
> open webrev at http://cr.openjdk.java.net/~coleenp/8193053.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8193053
> 
> This fix is somewhat minimal because it's late in the jdk 10 release cycle but improved function name is welcome.
> 
> Tested with failing jck tests for several hours (usual failure in first run).  Also ran mach5 tier1-5 (still in progress but almost done).
> 
> Thanks,
> Coleen

Change looks okay.