hg: shenandoah/jdk: Fix Shenandoah non-PCH builds

[zgu at redhat.com]

Changeset: bd6acd22ef6a
Author:    zgu
Date:      2018-08-20 09:09 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk/rev/bd6acd22ef6a

Fix Shenandoah non-PCH builds

! src/hotspot/share/gc/shenandoah/shenandoahSATBMarkQueueSet.cpp
! src/hotspot/share/gc/shenandoah/shenandoahSATBMarkQueueSet.hpp