INT-2417 Alias Endpoints with Generated Names

Handlers for consumer endpoints get a generated name
derived from the endpoint class name.

It is useful (for example for autowiring in tests)
to give the handlers a well-known name.

If the endpoint has an ID attribute, the handler
now gets a bean name of "<ID>.handler".

spring-integration-ip/src/test/java/org/springframework/integration/ip/config/ParserUnitTests.java

@@ -84,15 +84,15 @@ public class ParserUnitTests {
 	TcpReceivingChannelAdapter tcpIn;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.udp.UnicastSendingMessageHandler#0")
+	@Qualifier(value="testOutUdp.handler")
 	UnicastSendingMessageHandler udpOut;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.udp.MulticastSendingMessageHandler#0")
+	@Qualifier(value="testOutUdpiMulticast.handler")
 	MulticastSendingMessageHandler udpOutMulticast;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.tcp.TcpSendingMessageHandler#0")
+	@Qualifier(value="testOutTcpNio.handler")
 	TcpSendingMessageHandler tcpOut;
 
 	@Autowired
@@ -107,9 +107,14 @@ public class ParserUnitTests {
 	TcpInboundGateway tcpInboundGateway2;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.tcp.TcpOutboundGateway#0")
+	@Qualifier(value="outGateway.handler")
 	TcpOutboundGateway tcpOutboundGateway;
 
+	// verify we can still inject by generated name
+	@Autowired
+	@Qualifier(value="org.springframework.integration.ip.tcp.TcpOutboundGateway#0")
+	TcpOutboundGateway tcpOutboundGatewayByGeneratedName;
+
 	@Autowired
 	EventDrivenConsumer outGateway;
 
@@ -160,11 +165,11 @@ public class ParserUnitTests {
 	AbstractConnectionFactory cfS3;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.tcp.TcpSendingMessageHandler#1")
+	@Qualifier(value="tcpNewOut1.handler")
 	TcpSendingMessageHandler tcpNewOut1;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.tcp.TcpSendingMessageHandler#2")
+	@Qualifier(value="tcpNewOut2.handler")
 	TcpSendingMessageHandler tcpNewOut2;
 
 	@Autowired
@@ -192,7 +197,7 @@ public class ParserUnitTests {
 	TaskScheduler sched;
 
 	@Autowired
-	@Qualifier(value="org.springframework.integration.ip.tcp.TcpSendingMessageHandler#3")
+	@Qualifier(value="tcpOutClientMode.handler")
 	TcpSendingMessageHandler tcpOutClientMode;
 
 	@Autowired