Shenandoah: build is broken without jfr

* Reproduce
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bash ${JDK}/configure --with-debug-level=fastdebug --with-jvm-features=-jfr
make CONF=fastdebug images
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* Symptom
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* For target hotspot_variant-server_libjvm_objs_shenandoahRootProcessor.o:
In file included from /home/fool/workspace/jdk-dev/src/hotspot/share/gc/shenandoah/shenandoahHeuristics.hpp:27:0,
                 from /home/fool/workspace/jdk-dev/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.inline.hpp:31,
                 from /home/fool/workspace/jdk-dev/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp:30:
/home/fool/workspace/jdk-dev/src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp:297:15: error: inline function 'bool ShenandoahHeap::is_full_gc_in_progress() const' used but never defined [-Werror]
   inline bool is_full_gc_in_progress() const;
               ^~~~~~~~~~~~~~~~~~~~~~
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* Fix
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diff -r c41d1303a87c src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp Mon Nov 04 13:02:40 2019 -0800
+++ b/src/hotspot/share/gc/shenandoah/shenandoahRootProcessor.cpp Tue Nov 05 10:03:34 2019 +0800
@@ -29,6 +29,7 @@
 #include "code/codeCache.hpp"
 #include "gc/shenandoah/shenandoahRootProcessor.inline.hpp"
 #include "gc/shenandoah/shenandoahHeap.hpp"
+#include "gc/shenandoah/shenandoahHeap.inline.hpp"
 #include "gc/shenandoah/shenandoahPhaseTimings.hpp"
 #include "gc/shenandoah/shenandoahStringDedup.hpp"
 #include "gc/shenandoah/shenandoahTimingTracker.hpp"
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