Instantiation Expressions from generic class static member

[JasonKleban]

Bug Report

🔎 Search Terms

• "Only refers to a type, but is being used as a namespace here" TS202
• "Cannot find name" TS2304
• "Instantiation Expressions"

🕗 Version & Regression Information

I tried this in Nightly 5.1.0-dev.20230313, 4.7.4, 4.8.4, and 4.9.5 - the versions that support Instantiation Expressions on the playground but it does not complain. This does not cause my build to fail - only the Language Server complains locally.

• This is the behavior in every version I tried

⏯ Playground Link

NOT exhibited in playground: Playground link with relevant code

But the same code in VSCode latest with nightly typescript:

And I hope I'm showing that the right version of tsserver is being used (it would be nice if the TSServer startup announced its version for confirmation).

💻 Code

class Foo<T extends Object, C extends {}> {
    private constructor(value : T, context: C){ }

    static readonly makeFoo = <C extends {}>(context : C) => 
        <T extends Object>(value : T) => 
            new Foo<T, C>(value, context);
}

const x = Foo.makeFoo<{}>;  // Cannot find name 'Foo'.ts(2304)
                            // 'Foo' only refers to a type, but 
                            // is being used as a namespace here.ts(2702)

x({}); // 👍 `const x: <{}>(context: {}) => <T>(value: T) => Foo<T, {}>`

Strangely, the language server is still able to give the right types for that and future related code.

🙁 Actual behavior

Non-blocking errors TS202 TS2304 on the Instantiation Expressions involving a generic static method.

🙂 Expected behavior

Should be OK or have a fully blocking error (hopefully with enough information to fix)

[RyanCavanaugh]

This is just a bug. There shouldn't be an error in the LS