RFR (S) 8196199: Remove miscellaneous oop comparison operators

[harold seigel]

Hi Coleen,

This change looks good.

In jniCheck.cpp, you could use the is_null(oop obj) function defined in 
oop.hpp instead of 'oop == NULL'.

Harold


On 1/30/2018 5:58 PM, coleen.phillimore at oracle.com wrote:
> CheckUnhandledOops had defined some oop comparison operators that will 
> have to be rewritten for new GCs.   Kim Barrett did most of this 
> change. See CR for more info.
>
> Tested with JPRT (using currently supported GCs) tier1 and locally.
>
> open webrev at http://cr.openjdk.java.net/~coleenp/8196199.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8196199
>
> Thanks,
> Coleen