[BUG] keyof typeof Type results in no type in documentation.json

[TomONeill]

Overview of the issue

Using keyof typeof Type results in an empty type in documentation.json.

Operating System, Node.js, npm, compodoc version(s)

Windows 11 Enterprise (23H2)

Node v20.9.0
npm 10.2.4

@compodoc/compodoc@1.1.22

Compodoc installed globally or locally ?

Locally

Motivation for or Use Case

We're using Storybook together with Compodoc and since we're also using keyof typeof in several instances, this results in the Controls being unable to propagate the right type/value.

Reproduce the error

1. Create an enum

enum MyEnum {
    One,
    Two
}

2. Create a class with either a property or method with keyof typeof Type. Type being the enum

@Injectable({
    providedIn: 'root'
})
export class MyService {
    public myMethod(myParam: keyof typeof MyEnum): void {
    }
}

3. Run compodoc

Result:

{
    "name": "MyService",
    "id": "injectable-MyService-xxxx",
    "file": "xxx/src/lib/my.service.ts",
    "properties": [],
    "methods": [
        {
            "name": "myMethod",
            "args": [
                {
                    "name": "myParam",
                    "type": "",
                    "deprecated": false,
                    "deprecationMessage": ""
                }
            ]
        }
    ]
}

note that the result was modified to better point out the issue

Notice how myParam has no type. I expected "One" | "Two" as type.

Related issues

#1329

But in this issue the problem is another bug (using Extract), which I'll also create another bug for to make it more clear what the problems are.

Suggest a Fix

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