ComponentBase::addInterface() deprecation comment + assert message

[jim-bcom]

As I was removing warnings in our code base, I noticed one about ComponentBase::addInterface() being deprecated.
I had to look into the code to determine by what I could replace my call: addInterface() calls declareInterface().

• Could you add a comment in the attribute (e.g. [[deprecated("Use declareInterface() instead")]]) ? The method could also be removed but maybe you prefer to wait for a new major release to break this API ?

• Also, the assert messages in declareInterface() are not up-to-date:

"Type passed to addInterface is not an interface "
[...]
"Interface type passed to addInterface is not a derived class of IComponentIntrospect !!"

Either use the new declareInterface() name or both, until addInterace() is removed ?