8241067: Shenandoah: improve ShenandoahNMethod::has_cset_oops arguments

Reviewed-by: shade

src/hotspot/share/gc/shenandoah/shenandoahNMethod.cpp

@@ -57,8 +57,8 @@ class ShenandoahHasCSetOopClosure : public OopClosure {
   bool                  _has_cset_oops;
 
 public:
-  ShenandoahHasCSetOopClosure() :
-    _heap(ShenandoahHeap::heap()),
+  ShenandoahHasCSetOopClosure(ShenandoahHeap *heap) :
+    _heap(heap),
     _has_cset_oops(false) {
   }
 
@@ -79,7 +79,7 @@ class ShenandoahHasCSetOopClosure : public OopClosure {
 };
 
 bool ShenandoahNMethod::has_cset_oops(ShenandoahHeap *heap) {
-  ShenandoahHasCSetOopClosure cl;
+  ShenandoahHasCSetOopClosure cl(heap);
   oops_do(&cl);
   return cl.has_cset_oops();
 }