if (VM.VerifyAssertions) VM.assert(fromHeap.refInHeap(fromRef));
if (VM.VerifyAssertions) VM._assert(fromHeap.refInHeap(fromRef));
  static VM_Address copyAndScanObject(VM_Address fromRef, boolean scan) throws VM_PragmaUninterruptible {    if (VM.VerifyAssertions) VM.assert(fromHeap.refInHeap(fromRef));    return VM_CopyingCollectorUtil.copyAndScanObject(fromRef, scan);  }