RFR: Fix non-PCH build

[Aleksey Shipilev]

Fails to compile:

/home/shade/trunks/shenandoah-jdk/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp:45:35:
error: ‘ShenandoahRuntime::write_ref_field_pre_entry’ is not a type
 JRT_LEAF(void, ShenandoahRuntime::write_ref_field_pre_entry(oopDesc* orig, JavaThread *thread))
                                   ^
/home/shade/trunks/shenandoah-jdk/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp:46:3: error:
expected constructor, destructor, or type conversion before ‘if’
   if (orig == NULL) {
   ^
/home/shade/trunks/shenandoah-jdk/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp:52:45:
error: expected constructor, destructor, or type conversion before ‘(’ token
   ShenandoahThreadLocalData::satb_mark_queue(thread).enqueue(orig);
                                             ^
/home/shade/trunks/shenandoah-jdk/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp:53:1: error:
‘JRT_END’ does not name a type
 JRT_END
 ^
   ... (rest of output omitted)

Fix:

diff -r 468e91da7c49 src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp	Thu Jun 14 17:54:55 2018 +0200
+++ b/src/hotspot/share/gc/shenandoah/shenandoahRuntime.cpp	Thu Jun 14 18:36:59 2018 +0200
@@ -22,10 +22,13 @@
  */

 #include "precompiled.hpp"
 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
 #include "gc/shenandoah/shenandoahRuntime.hpp"
+#include "gc/shenandoah/shenandoahThreadLocalData.hpp"
+#include "runtime/interfaceSupport.inline.hpp"
+#include "oops/oop.inline.hpp"

 void ShenandoahRuntime::write_ref_array_pre_oop_entry(oop* dst, size_t length) {
   ShenandoahBarrierSet *bs = ShenandoahBarrierSet::barrier_set();
   bs->write_ref_array_pre(dst, length, false);
 }


-Aleksey