Represents name-related data of any type, including its name, namespace.
Doesn't include any type parameters nor member data (such as fields, methods, etc.)
Represents name-related data of any type, including its name, namespace, and generic parameters (if present).
Doesn't include any type member data (such as fields, methods, etc.)
Note that this interface can represent also 'void', even though it's technically not a type.