RFR: 8202364: Add GCConfig::hs_err_name() to avoid GC-specific code in error reporting

[Per Liden]

Thanks Erik!

/Per

On 04/27/2018 11:40 AM, Erik Österlund wrote:
> Hi Per,
> 
> Looks good.
> 
> Thanks,
> /Erik
> 
> On 2018-04-27 11:33, Per Liden wrote:
>> The gc_mode() function in vmErrror.cpp currently tests which Use*GC 
>> flag is set and translates that into a name. We should instead call 
>> into GCConfig to get the name. This patch adds a new function 
>> (GCConfig::hs_err_name) for this purpose. This is not placed on 
>> CollectedHeap, since we might need this name before a CollectedHeap 
>> instance has been created, e.g. if we crash during VM startup.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8202364
>> Webrev: http://cr.openjdk.java.net/~pliden/8202364/webrev.0
>>
>> /Per
>>
>