src/hotspot/share/gc/shenandoah/shenandoahHeap.hpp

rev 53257 : Cherry-pick: 8213199: GC abstraction for Assembler::needs_explicit_null_check() plus Shenandoah parts

*** 552,561 ****
--- 552,562 ----
    bool is_maximal_no_gc() const shenandoah_not_implemented_return(false);
  
    bool is_in(const void* p) const;
  
    size_t obj_size(oop obj) const;
+   virtual ptrdiff_t cell_header_size() const;
  
    // All objects can potentially move
    bool is_scavengable(oop obj) { return true; };
  
    void collect(GCCause::Cause cause);