return (descriptions[slot] & VM_Statics.REFERENCE_TAG) == VM_Statics.REFERENCE_TAG;
return (type & VM_Statics.REFERENCE_TAG) == VM_Statics.REFERENCE_TAG;
  public static boolean isReference(int slot) throws UninterruptiblePragma {    byte type = descriptions[slot];    // if (type == CONTINUATION) VM.sysFail("Asked about type of a JTOC continuation slot");    return (descriptions[slot] & VM_Statics.REFERENCE_TAG) == VM_Statics.REFERENCE_TAG;  }