Is it possible to track the infer type of Promise?

Hi. I try to find all nodes that belong to a Promise type.

Can I do it using ts-morph?

In my example, I have a promise with `unknown` type. that makes `findMe` variable to be `unknown` as well.

```
class Foo {
some() {
const doWork = new Promise((res, req) => { res(true) });
doWork.then(findMe => {

});
}
}
```
So is it possible to find that connection in typescript ast? something like "findAllReferences" of type? something like this?
```
const node: UnknownKeyword;
project.getLanguageService().findReferencesAsNodes(node) // output: [Identifier (getText === findMe) ]

```

Because I want to track the `T` of that Promise and change all the nodes that belongs to this type.

Start with the Promise example and the proposed findReferencesAsNodes call, then review how the TypeScript language service resolves types and references. Done means establishing whether the connection from Promise to findMe can be tracked and documenting or implementing the supported approach.

Written by the indexing model from the issue text.