static void registerSpecialVersion(OPT_SpecializedMethod spMethod) {
static synchronized  void registerSpecialVersion(OPT_SpecializedMethod spMethod) {
  static void registerSpecialVersion(OPT_SpecializedMethod spMethod) {    VM_Method source = spMethod.getMethod();    MethodSet s = findOrCreateMethodSet(specialVersionsHash, source);    s.add(spMethod);    deferredMethods.add(spMethod);  }