RFR: 818269: Remove gcTrace.hpp include from referenceProcessor.hpp

[Kim Barrett]

> On Jun 22, 2017, at 4:59 AM, Stefan Karlsson <stefan.karlsson at oracle.com> wrote:
> 
> This mail was supposed to go to hotspot-gc-dev (To:ed) not to jdk10-dev (BCC:ed).
> 
> Thanks,
> StefanK
> 
> On 2017-06-22 10:46, Stefan Karlsson wrote:
>> Hi all,
>> Please review this trivial change to remove an include of gcTrace.hpp in referenceProcessor.hpp, and changes needed to get the code to compile after that.
>> http://cr.openjdk.java.net/~stefank/8182696/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8182696
>> I was prototyping ways to get more type safe time durations in HotSpot and found that whenever I changed my header file, that almost all HotSpot cpp files were recompiled. I tracked it down to come from the unused include of gcTrace.hpp in referenceProcessor.hpp.
>> We could probably also try to figure out why changes referenceProcessor.hpp triggers recompiles of the entire source code, but I'd like to leave that exercise for another day.
>> Thanks,
>> StefanK

Looks good.

There’s potential for interaction between this and 8181449, but we can sort that out if it happens.