False deprecation warning for overloaded constructor

[jurgenvinju]

Describe the bug

To Reproduce

In rascal-lsp the util::LanguageServer module has this example where we

1. moved an old constructor to an overloaded and @deprecated function that calls the new constructor (with the same name)
2. added the new constructor to the data type.

The checker now produces deprecation warnings also when the new constructor is being used instead of the old function signature.

• the overloads have the same arity
• the overloads have an incomparable type for the third parameter: str vs set[str]