Merge 5.x into 5.next

Merge 5.x into 5.next

Add more clear error source (#18776)

Sometimes, there are nested components in controllers. There could be the case were a controller uses a component X that actually runs the event with a invalid return. It would be helpful to see what is the component and function that actually triggers the warning (instead of the name of the event subject, that is most often just the controller name)

Add more clear error source (#18776)

Sometimes, there are nested components in controllers. There could be the case were a controller uses a component X that actually runs the event with a invalid return. It would be helpful to see what is the component and function that actually triggers the warning (instead of the name of the event subject, that is most often just the controller name)

Add more clear error source (#18776)

Sometimes, there are nested components in controllers. There could be the case were a controller uses a component X that actually runs the event with a invalid return. It would be helpful to see what is the component and function that actually triggers the warning (instead of the name of the event subject, that is most often just the controller name)

Add more clear error source (#18776)

Sometimes, there are nested components in controllers. There could be the case were a controller uses a component X that actually runs the event with a invalid return. It would be helpful to see what is the component and function that actually triggers the warning (instead of the name of the event subject, that is most often just the controller name)

Add more clear error source (#18776)

Sometimes, there are nested components in controllers. There could be the case were a controller uses a component X that actually runs the event with a invalid return. It would be helpful to see what is the component and function that actually triggers the warning (instead of the name of the event subject, that is most often just the controller name)

Improve console help (#18731)

Align command help output with callable form

Use underscore inflection when printing plugin names in command list
help. Underscore conventions are generally more common in CLI contexts
vs camelCase.

Refs #17728

* Make command runner handle plugin inflection.

Refs #17728

* Fix phpcs error

Fix up depr notice. (#18353)

Fix up depr notice. (#18353)