Fix test failures in ProxyHandlerTest

Motivation:

The default name resolver attempts to resolve the bad host name (destination.com) and actually succeeds, making the ProxyHandlerTest fail.

Modification:

Use NoopNameResolverGroup instead.

Result:

ProxyHandlerTest passes again.

handler-proxy/src/test/java/io/netty/handler/proxy/ProxyHandlerTest.java

@@ -36,6 +36,7 @@
 import io.netty.handler.ssl.SslContext;
 import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
 import io.netty.handler.ssl.util.SelfSignedCertificate;
+import io.netty.resolver.NoopNameResolverGroup;
 import io.netty.util.CharsetUtil;
 import io.netty.util.concurrent.DefaultExecutorServiceFactory;
 import io.netty.util.concurrent.Future;
@@ -522,6 +523,7 @@ protected void test() throws Exception {
             Bootstrap b = new Bootstrap();
             b.group(group);
             b.channel(NioSocketChannel.class);
+            b.resolver(NoopNameResolverGroup.INSTANCE);
             b.handler(new ChannelInitializer<SocketChannel>() {
                 @Override
                 protected void initChannel(SocketChannel ch) throws Exception {
@@ -569,6 +571,7 @@ protected void test() throws Exception {
             Bootstrap b = new Bootstrap();
             b.group(group);
             b.channel(NioSocketChannel.class);
+            b.resolver(NoopNameResolverGroup.INSTANCE);
             b.handler(new ChannelInitializer<SocketChannel>() {
                 @Override
                 protected void initChannel(SocketChannel ch) throws Exception {
@@ -613,6 +616,7 @@ protected void test() throws Exception {
             Bootstrap b = new Bootstrap();
             b.group(group);
             b.channel(NioSocketChannel.class);
+            b.resolver(NoopNameResolverGroup.INSTANCE);
             b.handler(new ChannelInitializer<SocketChannel>() {
                 @Override
                 protected void initChannel(SocketChannel ch) throws Exception {