JIRA: https://jira.spring.io/browse/INT-3961
The `@InboundChannelAdapter` may be initialized by its `MessagingAnnotationPostProcessor` a bit earlier than the
provided channel is created and registered in the context - via some other more late `BPP`, e.g. `IntegrationFlowBeanPostProcessor` from Java DSL.
* Add channel late-binding logic to the `InboundChannelAdapterAnnotationPostProcessor` and `SourcePollingChannelAdapter` by the provided `outputChannelName` option.
* Add the `channel` alias for the `value` annotation attribute in the `@InboundChannelAdapter`
* Add the `@InboundChannelAdapter` configuration into the `EnableIntegrationTests` without the channel declaration to be sure that the fix provide the expected results without `DestinationResolutionException`
* Mention both changes in the `configuration.adoc` and `whats-new.adoc`
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