return (forwardingPtr & ~HybridHeader.GC_BITS_MASK) | msCollector.getInitialHeaderValue(bytes);
return (forwardingPtr & ~HybridHeader.GC_BITS_MASK) | msSpace.getInitialHeaderValue();
  public static final int resetGCBitsForCopy(VM_Address fromObj,					     int forwardingPtr, int bytes) {    return (forwardingPtr & ~HybridHeader.GC_BITS_MASK) | msCollector.getInitialHeaderValue(bytes);  }