Concerto 1.1 does not handle type references in decorators

[jeromesimeon]

Bug Report 🐛

Although poorly documented, there is a way to use a type reference as the argument in a decorator. For instance:

namespace test

@MyDecorator(Foo) // Foo is the type name
// @MyOtherDecorator(Bar) // Bar is the type name but it does not exist
concept Foo {}

The new support for conversions between CTO files and their AST instances of the concerto metamodel does not handle those decorators.

Expected Behavior

Decorators containing arguments which are type references should be handled (and name-resolved if requested) properly.