addr.store(referent, Offset.fromInt(VM_Entrypoints.referenceReferentField.getOffset()));
addr.store(referent, VM_Entrypoints.referenceReferentField.getOffset());
  public static void setReferent(Address addr, ObjectReference referent) {    addr.store(referent, Offset.fromInt(VM_Entrypoints.referenceReferentField.getOffset()));  }