This adds support for detecting the `CommandManager.execute` method in
the unique command use query.
This may not be the best way to implement this. There's a method
`hasUnderlyingType` on `this.getReceiver().getType()`, but I couldn't
really figure out how to get it recognize `CommandManager`. It might be
possible if we can construct the type of `CommandManager`, but this will
probably include the filepath to the `CommandManager` class, which might
not neccessarily be something we want: moving the `CommandManager` class
should not require updating the query. I'm very happy to hear other
suggestions.
