fmt.Printf("rewriting %s  ->  %s\n", v0.LongString(), v.LongString())
				}

				// Eliminate copy inputs.
				// If any copy input becomes unused, mark it
				// as invalid and discard its argument. Repeat
				// recursively on the discarded argument.
				// This phase helps remove phantom "dead copy" uses
				// of a value so that a x.Uses==1 rule condition
				// fires reliably.
				for i, a := range v.Args {

		if mwq, ok := a.(*MethodWithQualifiers); ok {
			a = mwq.Method
		}

		// If this is a local name, there may be CV-qualifiers
		// on the name that really apply to the top level, and
		// therefore must be discarded when discarding
		// parameters.  This can happen when parsing a class
		// that is local to a function.
		if q, ok := a.(*Qualified); ok && q.LocalName {
			p := &q.Name
			if da, ok := (*p).(*DefaultArg); ok {

	backend.Config.ErrorLog = log.New(io.Discard, "", 0)

	backendURL, err := url.Parse(backend.URL)
	if err != nil {
		t.Fatal(err)
	}

	proxyHandler := NewSingleHostReverseProxy(backendURL)

	// Discards errors of the form:
	// http: proxy error: read tcp 127.0.0.1:44643: use of closed network connection
	proxyHandler.ErrorLog = log.New(io.Discard, "", 0)

	frontend := httptest.NewServer(proxyHandler)

            where:
            consumer << throwingConsumers()
        }

        def "calling #consumer throws exception if added item provider references the property and discards producer"(
            Consumer<ProviderInternal<?>> consumer
        ) {
            given:
            def property = property()
            Provider<T> item = property.map { list -> list.iterator().next() }

            where:
            consumer << throwingConsumers()
        }

        def "calling #consumer throws exception if added item provider references the property and discards producer"(
            Consumer<ProviderInternal<?>> consumer
        ) {
            given:
            def property = property()
            Provider<String> item = property.map { it.toString() }

	volumeDir, err := s.getVolDir(volume)
	if err != nil {
		return err
	}

	discard := true

	var legacyJSON bool
	buf, _, err := s.readAllData(ctx, volume, volumeDir, pathJoin(volumeDir, path, xlStorageFormatFile), discard)
	if err != nil {
		if !errors.Is(err, errFileNotFound) {
			return err
		}

		s.RLock()
		legacy := s.formatLegacy

	}
	// This one should be an ExecError.
	tmpl, err = New("X").Parse("hello, {{.X.Y}}")
	if err != nil {
		t.Fatal(err)
	}
	err = tmpl.Execute(io.Discard, 0)
	if err == nil {
		t.Fatal("expected error; got none")
	}
	eerr, ok := err.(ExecError)
	if !ok {
		t.Fatalf("did not expect ExecError %s", eerr)
	}
	expect := "field X in type int"

        }

        @Override
        protected Object createServiceInstance() {
            Object[] params = assembleParameters();
            Object result = invokeMethod(params);
            // Can discard the state required to create instance
            paramServices = null;
            return result;
        }

        private Object[] assembleParameters() {
            if (paramServices == NO_DEPENDENTS) {

	cst.c.Timeout = 1 * time.Hour
	req, _ := NewRequest("GET", cst.ts.URL, nil)
	res, err := cst.c.Do(req)
	if err != nil {
		t.Fatal(err)
	}
	if _, err = io.Copy(io.Discard, res.Body); err != nil {
		t.Fatalf("io.Copy(io.Discard, res.Body) = %v, want nil", err)
	}
	if err = res.Body.Close(); err != nil {
		t.Fatalf("res.Body.Close() = %v, want nil", err)
	}
}

	for m := range re {
		if err := enc.Encode(m); err != nil {
			s.writeErrorResponse(w, errors.New("Encoding mrf failed: "+err.Error()))
			return
		}
	}
}

// DevNull - everything goes to io.Discard
func (s *peerRESTServer) DevNull(w http.ResponseWriter, r *http.Request) {
	if !s.IsValid(w, r) {
		s.writeErrorResponse(w, errors.New("invalid request"))
		return
	}

	globalNetPerfRX.Connect()